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Equipment & Gear => Power Equipment & RV => Topic started by: C-Money on December 10, 2019, 01:55:39 PM

Title: 1999 Chevy Tahoe Engine Replacement
Post by: C-Money on December 10, 2019, 01:55:39 PM
Our family SUV appears to have a cracked head. Symptoms are a cylinder #5 misfire, and burning coolant. Our Tahoe has 157,000 miles. Its in great shape with, new rear axels, a seemingly solid tranny/transfer case, new breaks, good tires, no dents... good paint. Weighing out trading it in on a used SUV. Prices for an SUV that has similar or less miles are $10-15,000. Or, just put in a new 5.7 in the Tahoe we have. We are leaning greatly towards a new engine. I was told to figure $5,000 for a new motor and labor out the door, mechanic hoping it would be less, but figure $5,000. 3 year 30,000 mile warranty on the engine/labor. Is it possible to put in an engine that is carbureted to avoid all the electronic stuff, or is that not smart? The engine thats in it has a distributor, and plug wires, no coil packs. Anyone ever go through this dilemma, and how did it turn out?
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Mudman on December 10, 2019, 02:13:34 PM
Stay efi stock!  Will cost ya more $ and headaches to convert imop.   Sounds like replacement is way to go or step up to newer more expensive low mileage suv.  I would think ya could find better deal on eng install though?  Dealers can be more $!  Check around.  Also before spending a dollar make dang sure transmission is still in good shape.  Don't want get caught 10000miles later with another $5k expense!  Engine should only cost around $2000!!!  Check Jegs or Summit??  Long blocks..
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: follow maggie on December 10, 2019, 03:16:53 PM
Why do you need a new engine for a cracked head? Shouldn't you be able to just replace the head(s), do some other improvements/preventative stuff while it's apart & go on your way?
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: KFhunter on December 10, 2019, 03:24:28 PM
agree with mudman, long block it

I had great luck with motorworks in Spokane, but I'm sure there's a great reputable shop on your side of the state?   

https://www.motorworksengines.com/

while your at it have your transmission gone through and possibly rebuilt, it might not be fully ready for it but I'd do it if it were me,  157k is quite a bit anyways so there's going to be wear and tear on it no matter what.

If you like the vehicle, its clean and no other issues for sure I'd repower it  :tup:

Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Buckhunter24 on December 10, 2019, 03:31:20 PM
Probably already checked, but look at intake and head gaskets first. Even with cracked head it shouldnt be a whole new engine right?
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: KFhunter on December 10, 2019, 03:36:17 PM
It's at 157k, and heated enough to have a cracked head, and probably coolant in the cylinder washing the rings and and and and and


long block it  :chuckle:
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Skillet on December 10, 2019, 04:15:28 PM
Absolutely stay efi stock, absolutely buy a brand new long block GM Parts L31 crate engine for around $2k (summit and jegs always have these on sale), and absolutely don't pay more than $1500 for install, all the gaskets and misc. parts included. This is a dead simple swap.

$3500 +/- is where you should be at, imho. Good for another 157k+.

I stayed at a Quality Inn last night, FYI.    :chuckle:
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jrebel on December 10, 2019, 04:29:06 PM
I'll be the bad devil on your left shoulder.......Why would you put a new engine in a Chevy with 150K on it?  Save your 5K and put it down on a new rig.   5K will just be the start of your problems.  3 year 30K warranty is really a 1.5 year warranty if you drive it much.  Ohhhhh.....and "new rig" can be new to you, not brand new because I think that is often a waste of good hard earned money.  Find a couple year old used rig with 30K and save money on both ends. 

Just a thought and my  :twocents:

Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: TommyH on December 10, 2019, 04:43:54 PM
Is there coolant in the oil or oil in your radiator?
Our Tahoe has bad intake gaskets and also had a misfire. It would act up more in the cold weather, after initial start up it would drop to low rpms and almost die. Once it was warmed up it would be fine.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Lumpy Taters on December 10, 2019, 08:52:20 PM
Sounds like you have an early model 99.  they changed engine type sometime in 99/2000 to the new LS style.  Good news is the older LT style Chevy engines are plentiful.  I would personally look for a used engine and drop it in. If the vehicle is that old it really doesn't make sense to spend that much when a same year replacement is cheaper.   Just make sure you hear and see the engine run first or get a guaranty it runs so you have a recourse.  Most junk yards will stand behind what they sell for a short period of time. Stay EFI, the dash would light up like a Xmas tree if you don't.  On these newer vehicles the computers are connected to everything and things like the fuel pump and ignition timing would all be issues.  Besides EFI is way more efficient and reliable than any carburetor could ever be. It really is a simple swap and could be done in a weekend with regular hand tools.  Hardest part is the engine hoist and those are pretty cheap at Harbor Freight.   Car-part.com
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Stein on December 10, 2019, 10:19:59 PM
It's a 99, so I wouldn't put more into it than it's worth.  You can pick up one for $5k without the problems, maybe a few more miles.

I know 2000's had a head casting problem, but you have a completely different engine.  New heads along with the tools to do it, all parts and fixing a few things along the way was under $1k easy.

No way I would put a new engine in a 99 unless it was a project I enjoyed doing.

For reference, in the spring I will be selling my 2000 Silverado with 170k for probably $4k with zero problems.  They are out there if you look
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: C-Money on December 11, 2019, 06:08:12 AM
Whats the difference between this engine for $2700 https://www.jegs.com/i/Chevrolet-Performance/809/12681431/10002/-1

and this engine for $1600  https://www.jegs.com/i/Chevrolet-Performance/809/12681431/10002/-1

Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Lumpy Taters on December 11, 2019, 07:14:45 AM
The one for 2700 is a stronger engine. It is a 4 bolt main block which is technically stronger and for higher performance applications.  If you tow big loads it would be better.   If the rig is a daily driver that isnt used hard then the cheaper one would be just fine and is basically a direct replacement.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: C-Money on December 11, 2019, 08:23:45 AM
Gotcha! The cheap one is probably good for us then...
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: KFhunter on December 11, 2019, 08:45:04 AM
I agree with the guys saying not to sink money into this thing, its great advice.   


but if you love the vehicle and the body/interior are cherry...then perhaps I would,  or if it has sentimental value then I would.


and if I did,  I'd put in a longblock and rebuild the tranny.   And I'd stick on new waterpump, all new belts, hoses, thermostat, alt, battery etc etc   it would all be new, painted and purdy under the hood

but only if this were a cherry rig like I said above,  otherwise its trade in time
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: D-Rock425 on December 11, 2019, 08:48:55 AM
I had a 97 suburban that I put a new 5.7 in back in 2010.  Got motor from Chevy with warranty and never looked back.  Cost was around 4k if I remember right installed.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: C-Money on December 11, 2019, 09:55:02 AM
Thanks for all the tips! Spoke with the mechanic again this morning, and have appointment next week. They will confirm whats going on, with an engine swap as worst case scenario. We shall see!!
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Skillet on December 11, 2019, 10:07:48 AM
Whats the difference between this engine for $2700 https://www.jegs.com/i/Chevrolet-Performance/809/12681431/10002/-1

and this engine for $1600  https://www.jegs.com/i/Chevrolet-Performance/809/12681431/10002/-1

You have the same link for both engines there,fyi
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 11, 2019, 11:11:12 AM
@C-Money
How do you know it's burning coolant?
The intake manifold gaskets leak like crazy on those engines. Usually at the corners of the manifold. Failing injectors cause misfires in those things left and right.

I put 235k miles on my last chevy truck. You're at 150k +/-. If you're cool with spending $5k, it seems like money well spent to me as long as you expect another 75k miles out of it. Spending $5k on a used vehicle you have no idea where it's been, how it's been maintained, what  it's been through etc seems like a horrible idea to me.
That said, I'd look into how much an engine from GM would cost. If you buy one from Jeg's and it has problems, who pays the labor $$ to fix it? Do they cover labor? Warranty on an engine from the dealer will cover parts and labor, and I bet it's more than 3/30.
I had a kid bought pads and rotors from Jeg's for an explorer this week and brought them in for us to install. Took him 2 trips before he had the correct rotors and then we put them on and they were warped causing a pulsation straight out of the box.
 
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Buckmark on December 11, 2019, 12:00:53 PM
If the rest of the rig is in good serviceable condition then i would do it but i would do it myself and not have the labor cost but thats me.
I also agree a little with jackelope on buying the engine from GM as the warranty if something goes wrong is pretty good and it used to be (still think it is) 10yr/100k, now with that said i called Jet Chevrolet which is the Western Wa warehouse for GM and they no longer have the new crate engines available and they had no remans instock, could order me one though. My cost is 2505.60 with list being 3021.93 so that might make me pause and search other suppliers like you did (jegs etc) and save the 1500, Jasper engines have been ok lately and there warranty is pretty good but there prices usually are around the dealer (i did not check with them)
I would stay far far away from S&K engines in Spokane, i wont even take a vehicle in for engine warranty work if they have a S&K installed.
*
On a side note have been asked why i dont install customer supplied parts and jackelopes last sentence explains why, cant tie up a lift waiting for someone elses correct parts.....
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: KFhunter on December 11, 2019, 12:23:34 PM
Is motorworks any good? It's been a long time since I got one of their long blocks
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: elkaholic123 on December 11, 2019, 12:30:21 PM
JUST DO IT!
https://www.yahoo.com/autos/see-photos-2021-chevrolet-suburban-010000996.html
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 11, 2019, 12:43:54 PM
If the rest of the rig is in good serviceable condition then i would do it but i would do it myself and not have the labor cost but thats me.
I also agree a little with jackelope on buying the engine from GM as the warranty if something goes wrong is pretty good and it used to be (still think it is) 10yr/100k, now with that said i called Jet Chevrolet which is the Western Wa warehouse for GM and they no longer have the new crate engines available and they had no remans instock, could order me one though. My cost is 2505.60 with list being 3021.93 so that might make me pause and search other suppliers like you did (jegs etc) and save the 1500, Jasper engines have been ok lately and there warranty is pretty good but there prices usually are around the dealer (i did not check with them)
I would stay far far away from S&K engines in Spokane, i wont even take a vehicle in for engine warranty work if they have a S&K installed.
*
On a side note have been asked why i dont install customer supplied parts and jackelopes last sentence explains why, cant tie up a lift waiting for someone elses correct parts.....

Last I had reason to check, Jasper pays $50/hour labor and they won't pay you to fix one of their powertrain components. Verify internal issue in one of their units, pull it and send it back to them for fix or replacement. No rental coverage.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Woodchuck on December 11, 2019, 01:00:28 PM
Jasper gave me a good hosing a few years back, never been back.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Stein on December 11, 2019, 01:02:57 PM
Another option that only costs $100 is to put a deposit on a Tesla...
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Buckmark on December 11, 2019, 01:04:08 PM
If the rest of the rig is in good serviceable condition then i would do it but i would do it myself and not have the labor cost but thats me.
I also agree a little with jackelope on buying the engine from GM as the warranty if something goes wrong is pretty good and it used to be (still think it is) 10yr/100k, now with that said i called Jet Chevrolet which is the Western Wa warehouse for GM and they no longer have the new crate engines available and they had no remans instock, could order me one though. My cost is 2505.60 with list being 3021.93 so that might make me pause and search other suppliers like you did (jegs etc) and save the 1500, Jasper engines have been ok lately and there warranty is pretty good but there prices usually are around the dealer (i did not check with them)
I would stay far far away from S&K engines in Spokane, i wont even take a vehicle in for engine warranty work if they have a S&K installed.
*
On a side note have been asked why i dont install customer supplied parts and jackelopes last sentence explains why, cant tie up a lift waiting for someone elses correct parts.....

Last I had reason to check, Jasper pays $50/hour labor and they won't pay you to fix one of their powertrain components. Verify internal issue in one of their units, pull it and send it back to them for fix or replacement. No rental coverage.
Yes they wont pay a shop to fix internals but they do pay R/R, Jasper does offer service plan upgrades for the customer at a minimal cost and towing/rental for a minimal cost (option 1 160 bucks pays 95hr labor and fluids, option 2 255 bucks pays 125hr labor and fluids, 40 bucks for towing and rental coverage of 35 per day for 10 days and up to 100 bucks in towing) had a customer recently who had a Jasper engine that went bad (not one we put in) and they had the 95hr plan, they do only pay book time on engines and we charge more than book but the customer was fine paying the difference in hourly and hours, still worked out good for him.
Now i will say im all OEM first when we bid engines but have used others when we had to. I have had 1 GM crate motor and 1 Ford crate motor need warranty repairs and both went to the dealer with no issues, had 1 Jasper we put in that blew a head gasket that was a bit of work to get them to cover but we did finally get covered and paid.
Good luck in whatever you decide.

Just to be clear im not all Jasper is great, like i said they are ok, lots of rebuilders out there that are really bad though...we could start a whole thread on that.
I would pull it and have Rob at Action machine in shoreline rebuild it, might take 6 months and cost me more but i a sucker for punishment  :chuckle:
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Buckmark on December 11, 2019, 01:14:59 PM
If you do decide to do the swap yourself, its not a hard job (not sure of your skill level, place to work on it and tools avail) i would be happy to get you specs etc that you will need, just PM me.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: ballpark on December 11, 2019, 01:17:14 PM
Our family SUV appears to have a cracked head. Symptoms are a cylinder #5 misfire, and burning coolant. Our Tahoe has 157,000 miles. Its in great shape with, new rear axels, a seemingly solid tranny/transfer case, new breaks, good tires, no dents... good paint. Weighing out trading it in on a used SUV. Prices for an SUV that has similar or less miles are $10-15,000. Or, just put in a new 5.7 in the Tahoe we have. We are leaning greatly towards a new engine. I was told to figure $5,000 for a new motor and labor out the door, mechanic hoping it would be less, but figure $5,000. 3 year 30,000 mile warranty on the engine/labor. Is it possible to put in an engine that is carbureted to avoid all the electronic stuff, or is that not smart? The engine thats in it has a distributor, and plug wires, no coil packs. Anyone ever go through this dilemma, and how did it turn out?

I did the swap myself with the L31 on a 98 Silverado K1500.  Not difficult, but why you are in there Ö water pump, hoses, spark plugs, wires.  Be ready to inspect  flywheel, starter, distributor, intake manifold.  My intake manifold was all gunked up, flywheel was cracked.   The break in period is very important - follow the instructions :tup:
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: C-Money on December 11, 2019, 02:21:28 PM
We have battled fowling and had tune up's done x2, spider injection harness replaced, as well as other things I can't identify, or understand. A friend and me did the water pump. Shop did a gasket of some sort? After the spider harness, it has ran pretty good for about a year, and thought it was good to go. Now the #5 misfire is the problem. I have spent dang near enough on this engine the last 3-4 years to have a huge dent in the cost of a new motor. I change the oil and do very light maintenance on all our vehicles. A motor swap is light years outta my comfort zone. I have shot trap with the mechanic since we were kids, and is a straight shooter at the range and with his business. I sure do appreciate all the comments on here as I value the opinions of the folks on here as well...Doing my best to make an informed decision. We shall see what they find!
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: ballpark on December 11, 2019, 02:52:25 PM
We have battled fowling and had tune up's done x2, spider injection harness replaced, as well as other things I can't identify, or understand. A friend and me did the water pump. Shop did a gasket of some sort? After the spider harness, it has ran pretty good for about a year, and thought it was good to go. Now the #5 misfire is the problem. I have spent dang near enough on this engine the last 3-4 years to have a huge dent in the cost of a new motor. I change the oil and do very light maintenance on all our vehicles. A motor swap is light years outta my comfort zone. I have shot trap with the mechanic since we were kids, and is a straight shooter at the range and with his business. I sure do appreciate all the comments on here as I value the opinions of the folks on here as well...Doing my best to make an informed decision. We shall see what they find!


The heads are very expensive which make the swap even more practical as it comes with the heads. I got my engine from JEGS.  Good luck :tup:
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: follow maggie on December 11, 2019, 03:21:54 PM
JUST DO IT!
https://www.yahoo.com/autos/see-photos-2021-chevrolet-suburban-010000996.html

Those are nice rigs
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 11, 2019, 03:45:52 PM
We have battled fowling and had tune up's done x2, spider injection harness replaced, as well as other things I can't identify, or understand. A friend and me did the water pump. Shop did a gasket of some sort? After the spider harness, it has ran pretty good for about a year, and thought it was good to go. Now the #5 misfire is the problem. I have spent dang near enough on this engine the last 3-4 years to have a huge dent in the cost of a new motor. I change the oil and do very light maintenance on all our vehicles. A motor swap is light years outta my comfort zone. I have shot trap with the mechanic since we were kids, and is a straight shooter at the range and with his business. I sure do appreciate all the comments on here as I value the opinions of the folks on here as well...Doing my best to make an informed decision. We shall see what they find!

(That engine has 8 individual injectors, not the spider injector thing)
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 11, 2019, 03:46:38 PM
It doesn't make a lot of financial sense to put crap tons of money into new heads on an engine that has 150k miles on it.
 :twocents:
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Buckmark on December 11, 2019, 04:03:55 PM
We have battled fowling and had tune up's done x2, spider injection harness replaced, as well as other things I can't identify, or understand. A friend and me did the water pump. Shop did a gasket of some sort? After the spider harness, it has ran pretty good for about a year, and thought it was good to go. Now the #5 misfire is the problem. I have spent dang near enough on this engine the last 3-4 years to have a huge dent in the cost of a new motor. I change the oil and do very light maintenance on all our vehicles. A motor swap is light years outta my comfort zone. I have shot trap with the mechanic since we were kids, and is a straight shooter at the range and with his business. I sure do appreciate all the comments on here as I value the opinions of the folks on here as well...Doing my best to make an informed decision. We shall see what they find!

(That engine has 8 individual injectors, not the spider injector thing)
Its Central SFI system which people call the spider which is a unit,  still all located under the upper intake, silly GM..........
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Stein on December 11, 2019, 08:29:40 PM
If you were one year newer, Iím selling a Suburban with a great motor and ok rest of it that would make a perfect pair.



Sent from my iPhone using Tapatalk
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: C-Money on December 12, 2019, 08:33:51 AM
I thought the spider harness had new injectors on it?  :dunno:
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Buckmark on December 12, 2019, 08:57:22 AM
I thought the spider harness had new injectors on it?  :dunno:
You can buy them both ways, atleast that part would be newer for the replacement engine if you decide to go that route

Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 12, 2019, 12:26:30 PM
Not sure why I thought they were individual injectors. I thought the older 4.3's had that style but not the V8's. Ah well...wrong again.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 12, 2019, 04:58:25 PM
I've been dwelling on this for no reason at all, but I remember doing single injectors on these things in the past. Maybe because it was warranty work and maybe because it was 20 years ago at the Chevy dealer :chuckle:

Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: C-Money on December 12, 2019, 06:09:43 PM
I hear ya on how stuff runs together!
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: BUCKHUNT on December 13, 2019, 10:44:07 PM
Iím very interested in this as Iím currently dealing with the exact same dilemma. I have a 95 suburban at 225k miles. The rest of the truck is solid, Iím the original owner and have the truck rigged up perfectly for my needs.

I was told I have a blown intake valve and am getting no compression on cylinder 5. Iím leaning towards dropping in a crate motor; was quoted $5600 for a Jasper with a 3yr/100k mile warranty. Not sure how long I should shop around, or if thatís a reasonable quote.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Skillet on December 13, 2019, 11:05:30 PM
Iím very interested in this as Iím currently dealing with the exact same dilemma. I have a 95 suburban at 225k miles. The rest of the truck is solid, Iím the original owner and have the truck rigged up perfectly for my needs.

I was told I have a blown intake valve and am getting no compression on cylinder 5. Iím leaning towards dropping in a crate motor; was quoted $5600 for a Jasper with a 3yr/100k mile warranty. Not sure how long I should shop around, or if thatís a reasonable quote.


https://www.jegs.com/i/JEGS/059/8758/10002/-1 (https://www.jegs.com/i/JEGS/059/8758/10002/-1)

That's a brand new, not remanufactured engine shipped to your door with a warranty.

$5600 for an installed reman seems a little high to me.   :twocents:
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: HntnFsh on December 14, 2019, 07:23:59 AM
Iím very interested in this as Iím currently dealing with the exact same dilemma. I have a 95 suburban at 225k miles. The rest of the truck is solid, Iím the original owner and have the truck rigged up perfectly for my needs.

I was told I have a blown intake valve and am getting no compression on cylinder 5. Iím leaning towards dropping in a crate motor; was quoted $5600 for a Jasper with a 3yr/100k mile warranty. Not sure how long I should shop around, or if thatís a reasonable quote.


https://www.jegs.com/i/JEGS/059/8758/10002/-1 (https://www.jegs.com/i/JEGS/059/8758/10002/-1)

That's a brand new, not remanufactured engine shipped to your door with a warranty.

$5600 for an installed reman seems a little high to me.   :twocents:

Me too. That's a pretty easy swap.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 14, 2019, 11:11:16 AM
Almost every engine Iíve ever sold has been remanufactured.  Probably several dozen.  A replacement 5.4 v8 in an F150 from the dealer is close to $8k out the door installed. 3 year unlimited miles full parts and labor warranty for comparison sake. Granted labor is probably a little more expensive where Iím at but the labor time guide probably calls for 16-20 hours to replace an engine.  I donít think any shop is $100 an hour anymore, even independents so at $120 an hour youíre looking at over $2k in labor.  There will always be a $200-300 in extras like a belt, fluids, random stuff etc. $5600 seems pretty reasonable to me. Just understand with a Jasper engine, all of the labor will not be covered unless you pay extra for it and if it does have a significant issue, there will be down time with no coverage for alternate transportation.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 14, 2019, 11:16:41 AM
Iím very interested in this as Iím currently dealing with the exact same dilemma. I have a 95 suburban at 225k miles. The rest of the truck is solid, Iím the original owner and have the truck rigged up perfectly for my needs.

I was told I have a blown intake valve and am getting no compression on cylinder 5. Iím leaning towards dropping in a crate motor; was quoted $5600 for a Jasper with a 3yr/100k mile warranty. Not sure how long I should shop around, or if thatís a reasonable quote.


https://www.jegs.com/i/JEGS/059/8758/10002/-1 (https://www.jegs.com/i/JEGS/059/8758/10002/-1)

That's a brand new, not remanufactured engine shipped to your door with a warranty.

$5600 for an installed reman seems a little high to me.   :twocents:

Where does it say itís new?
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 14, 2019, 11:24:01 AM
Dwelling again. Sorry.
Weíre $160 an hour. Letís say 20 hours. (I know itís a lot. Weíre the cheapest Ford dealer in our area)

$3200 labor
$1600 engine
$500 misc

$5300+tax

Maybe the labor is a couple hours heavy but Iím assuming an hours worth of diagnosis to determine the problem too. Itís just a guess.
Same as with Jasper. Before considering Jegs as a viable option Iíd want to know the terms of the warranty. Who pays labor and how much do they cover if there is a problem.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: KFhunter on December 14, 2019, 11:34:16 AM
$5300 bux goes a long ways on a trade-in   


I'd only do an engine job if I did it myself, or under warranty. 
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 14, 2019, 11:49:55 AM
I donít disagree with you, but itís a lot cheaper than a new truck especially if the old truck is rigged the way you like or need it to be.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: BUCKHUNT on December 14, 2019, 03:59:28 PM
Thanks for the replies,

I should note that the truck is strictly for recreation, so not a daily driver. I also have no intention of trading it in or selling it eventually, but I'd like it to be reliable.

I called the dealership today just for another reference point; they told me to expect to pay around $7-$8k for the job, and that it would take them a while to source the motor. Is the best way to shop around to make calls and get quotes like this over the phone? It's been in great running condition for the last 20+ years so haven't had to deal with Mechanics in a long time.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 14, 2019, 05:36:24 PM
Thanks for the replies,

I should note that the truck is strictly for recreation, so not a daily driver. I also have no intention of trading it in or selling it eventually, but I'd like it to be reliable.

I called the dealership today just for another reference point; they told me to expect to pay around $7-$8k for the job, and that it would take them a while to source the motor. Is the best way to shop around to make calls and get quotes like this over the phone? It's been in great running condition for the last 20+ years so haven't had to deal with Mechanics in a long time.


They should be able to tell you within a few key strokes if the engine is available. Might take a little bit to get one, but itís quick and easy to determine the source. Maybe you got an inexperienced guy stuck working Saturdays.  Iíd also make sure youíre getting a GM engine if youíre calling the dealer too. Just verify it.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: ballpark on December 16, 2019, 03:47:46 PM
Iím very interested in this as Iím currently dealing with the exact same dilemma. I have a 95 suburban at 225k miles. The rest of the truck is solid, Iím the original owner and have the truck rigged up perfectly for my needs.

I was told I have a blown intake valve and am getting no compression on cylinder 5. Iím leaning towards dropping in a crate motor; was quoted $5600 for a Jasper with a 3yr/100k mile warranty. Not sure how long I should shop around, or if thatís a reasonable quote.

https://www.jegs.com/c/Engines-Components_Engine-Assembled-Ready-to-Run/10763/10002/-1 :tup:
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: C-Money on December 21, 2019, 12:35:54 PM
Tahoe is home.  :dunno: Mechanic could not get it to misfire, and is not leaking antifreeze. Nothing to report other than this is the second time I've dropped it off broken/misfiring, and it miraculously is healed when the mechanic goes to work on it. Not sure where the antifreeze is going as it does use it, and has for a while. I've been running it around yesterday and today, still no misfire. runs great, until one day, it doesn't. So irritating. Wish it would stay broke or stay fixed. No way do I feel confident in it. Mechanic said no real way to know if its the engine or the computer. :bash:
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 21, 2019, 12:59:28 PM
Was the check engine light on? If so, it should have a code or multiple codes. If it was burning coolant, there would probably be signs of it on the spark plug associated to the the cylinder the misfire code was stored for. Any word on fault codes? Did he pull plugs?
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Sandberm on December 21, 2019, 01:50:20 PM
Reading your original post makes it sound more like the cracked head diagnosis was a guess at what was the problem?

EDIT... Maybe its a leaky intake manifold gasket like in this video. Customer had a misfire. I think either in the video or the comments it talks about how when the engine warms up sometimes the leak seals up. Maybe that explains why your problem is intermittent?


Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: HntnFsh on December 22, 2019, 07:40:57 AM
Reading your original post makes it sound more like the cracked head diagnosis was a guess at what was the problem?

EDIT... Maybe its a leaky intake manifold gasket like in this video. Customer had a misfire. I think either in the video or the comments it talks about how when the engine warms up sometimes the leak seals up. Maybe that explains why your problem is intermittent?


Not uncommon for that era.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: C-Money on December 23, 2019, 08:50:35 AM
When trying to fix it myself, I put a new spark plug in #5 & #7. He did pull them, and did not find any evidence of antifreeze leaking. He drove it around, and never got it to miss. Silly me, I tossed the old plugs which was a mistake. I wish the mechanic could have taken a look at them. Code just says cylinder #5 misfire,  :dunno:. Hoping I can drive it to the shop missing to get proper diagnosis. Running great at the moment. We've taken it out hunting a few times now, put another 100 miles on it, with no hint of a miss.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Lumpy Taters on December 23, 2019, 07:16:29 PM
Sometimes a miss can be really hard to figure out.  Most just replace everything in the ignition system and hope it cures it. AS those parts are cheaper.  Sometimes new plugs will mask a problem with air/fuel issues as well.   Cracked engine parts are usually easy to find. Cracked heads or blown head gaskets will lead to water in the oil or oil in the water.  Both will be unmistakable by the amount of foaming you will see when you check them.  Blown heads will also have noise and or a lack of power.  Blown and cracked heads don't get better with new plugs so I don't think that's your problem.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Sandberm on December 27, 2019, 02:05:15 PM
As far as the coolant loss goes, my 03 chevy s10 with the 4.3 vortec drank coolant from about 110k miles till the intake gasket finally went at around 175k miles, sending coolant down the back of the engine off the bell housing. I always knew when it was time to add some coolant as the engine would start to run just a bit hotter, lets say 210 instead of 195ish. Truck ran great btw, never any missfires. I assume the small coolant loss either was going into a cylinder or perhaps it was a small enough leak that it was evaporating on the exterior of the engine.

I replaced the gasket with a metal one made by Felpro.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: jackelope on December 27, 2019, 05:24:06 PM
When I was with GM dealers 20 years ago, those Vortec v6 and v8 engines used to leak coolant externally at the corners of the intake manifolds. Especially the 5.7 v8's.
That leak happened a lot...like, I made a crap load of money selling those repairs. We did them all the time.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: C-Money on February 12, 2020, 06:48:10 AM
Update...Replaced cap and rotor, ran fine for about 1000 miles, and began missing...again. Got it to shop while missing last week, and will have Spider injection harness and distributor replaced today. Distributor was at my request (why not while they are in there). Spider injection harness is only 3 years old and is warranted by O'Reillys. We drove the Tahoe in last night to the shop,and it was missing quite badly. Hoping we can get a definite answer as to what s going on!
Title: Re: 1999 Chevy Tahoe Engine Replacement ...Final update(Hopefully)
Post by: C-Money on February 13, 2020, 03:22:28 PM
Mechanic replaced the Spider Injection harness and the distributor. The injector was broken and stuck on #5 cylinder that was miss firing. Said it was a real pain to get the broke injector out. Tahoe seems to be running fine now. Glad we did not need to replace the entire engine. Thanks to all who were kind enough to offer advise.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: Grit dog on February 14, 2020, 12:10:26 AM
We have battled fowling and had tune up's done x2, spider injection harness replaced, as well as other things I can't identify, or understand. A friend and me did the water pump. Shop did a gasket of some sort? After the spider harness, it has ran pretty good for about a year, and thought it was good to go. Now the #5 misfire is the problem. I have spent dang near enough on this engine the last 3-4 years to have a huge dent in the cost of a new motor. I change the oil and do very light maintenance on all our vehicles. A motor swap is light years outta my comfort zone. I have shot trap with the mechanic since we were kids, and is a straight shooter at the range and with his business. I sure do appreciate all the comments on here as I value the opinions of the folks on here as well...Doing my best to make an informed decision. We shall see what they find!

Didnít read the last 2 pages but based on this post, 100% this is what Iíd do.
If it were me and I wanted the cheap option, Iíd buy a used engine or vehicle for cheap and slap a new motor in it. 350s are dime a dozen.
But If you have to pay retail to fix, youíre spending what itís worth. Donít do it.
Put it on CL yesterday. If itís as clean as you say, youíll get $1-2k for it. Add the $4-5k and find another one.

Bonus if you can drive it for a while while searching.
Deals are out there. Almost bought a 99 Escalade grandma mobile lowmiles perfect but it sold before I was able to look at it.
But I bought a winter beater Tahoe for the wife last fall. 2001 loaded Tahoe, 9 out of 10 condition. 108k miles for $5k. Theyíre out there if you can find them.

If it was spring time, Iíd sell it to you! But still piling on the miles in the rain while the nice car stays tucked away....

Have cash, even if you have to take a short term loan until the cash flow comes around. You wonít get a deal unless you can jump on it.
Title: Re: 1999 Chevy Tahoe Engine Replacement
Post by: C-Money on February 14, 2020, 06:54:41 AM
I hear ya Grit dog...not a bad way to go for sure! We shall see how long this fix lasts. Took the boys to hockey practice in Tri Cities last night in the Tahoe, ran good. Had a loud knock when I started it after practice, that faded after around 5-10 min. Not sure what that was, poss related to the #5 not running for so long?