collapse

Advertisement


Author Topic: diesel motor help please!  (Read 16099 times)

Offline WA hunter14

  • Trade Count: (0)
  • Longhunter
  • *****
  • Join Date: May 2011
  • Posts: 851
  • Location: Weippe ID
Re: diesel motor help please!
« Reply #45 on: September 25, 2016, 09:09:02 PM »
Hmm I thought 94's were 6.0ltr ?

That would be 04

whoops typo ... meant 04 arent 04's 6.0?

Correct

That's what I thought ... then the OP might get farther with you tube by punching in 6.0 problems rather than 7.3.
In the first post he says he refers to his 7.3 but the 04's are 6.0's and they have been known to have lots of problems that the 7.3's did not. There will be plenty of vids of 6.0's  ;)
In his first post he says that his truck is a 1994, which is why he said the engine is a 7.3L

exactly, no 04 around. its a 1994 and the very first of the powerstroke i think thats why its so hard to find videos on. Only half a year of this exact motor.

Offline LDennis24

  • Bear poker
  • Washington For Wildlife
  • Trade Count: (0)
  • Frontiersman
  • *****
  • Join Date: Nov 2010
  • Posts: 3943
Re: diesel motor help please!
« Reply #46 on: September 25, 2016, 10:01:08 PM »
Try looking at the injector control pressure sensor also. Check for cracks.

Offline syoungs

  • Political & Covid-19 Topics
  • Trade Count: (+8)
  • Sourdough
  • *****
  • Join Date: Aug 2012
  • Posts: 2201
  • Location: tri cities, WA
Re: diesel motor help please!
« Reply #47 on: September 25, 2016, 10:03:26 PM »
Only a few items were different.
Unhook your IPC sensor on the driver side head, and see if it'll run. It's most likely a oil or sensor issue.

I really dont think it'll fix your issue, but make sure the tin nut is tight on your ipr.

Your injectors are tired at 212k, but they shouldn't "need" replaced. Wouldn't cause these issues if they did either.

When you drain down your high pressure oil system (in this case by letting ot sit), they can be a real bear to get running. The fix after working on the hpop system, is to run it, and hard.

There is something with the early hoop's drain back that's different then on the newer trucks, can't remember exactly what though.

If you think it needs a hpop, I've got one sitting on my shelf from a 95, that should be the same as yours, with. 110k miles on it, I'm sure we could work out a deal on it, it was to good to scrap, but I'm running a later model front cover on the engine, so I don't need it.

Offline syoungs

  • Political & Covid-19 Topics
  • Trade Count: (+8)
  • Sourdough
  • *****
  • Join Date: Aug 2012
  • Posts: 2201
  • Location: tri cities, WA
Re: diesel motor help please!
« Reply #48 on: September 25, 2016, 10:04:36 PM »
Try looking at the injector control pressure sensor also. Check for cracks.
That's the cup, you can unplug it and run the truck with it unplugged, if it's oily inside the sensor pigtail it's no good.

Offline jmscon

  • Forum Sponsor
  • Trade Count: (+7)
  • Sourdough
  • *****
  • Join Date: Nov 2015
  • Posts: 1197
  • Location: Seattle
  • RMEF BHA TRCP
Re: diesel motor help please!
« Reply #49 on: September 25, 2016, 10:36:54 PM »
This is a total shot in the dark, check the air filter. Since it sat for a while some critters could have made a nest in there and your engine is starved for air.
My interpretation of the rules are open to interpretation.
Once I thought I was wrong but I was mistaken.

Offline LDennis24

  • Bear poker
  • Washington For Wildlife
  • Trade Count: (0)
  • Frontiersman
  • *****
  • Join Date: Nov 2010
  • Posts: 3943
Re: diesel motor help please!
« Reply #50 on: September 26, 2016, 08:11:13 AM »
This is a total shot in the dark, check the air filter. Since it sat for a while some critters could have made a nest in there and your engine is starved for air.

I actually had this happen one time, 1984 Buick that had a ton of insulation shoved into the air intake and it was full of mouse poo... Fired right up after I found that out! :chuckle:

Offline M_ray

  • Non-Hunting Topics
  • Trade Count: (+7)
  • Frontiersman
  • *****
  • Join Date: Oct 2007
  • Posts: 4593
  • Location: I'm takin the 5th on this one
Re: diesel motor help please!
« Reply #51 on: September 26, 2016, 08:19:45 AM »
Hmm I thought 94's were 6.0ltr ?

That would be 04

whoops typo ... meant 04 arent 04's 6.0?

Correct

That's what I thought ... then the OP might get farther with you tube by punching in 6.0 problems rather than 7.3.
In the first post he says he refers to his 7.3 but the 04's are 6.0's and they have been known to have lots of problems that the 7.3's did not. There will be plenty of vids of 6.0's  ;)
In his first post he says that his truck is a 1994, which is why he said the engine is a 7.3L

exactly, no 04 around. its a 1994 and the very first of the powerstroke i think thats why its so hard to find videos on. Only half a year of this exact motor.

Ok sorry I'm on page now!
DISCLAIMER: The opinions expressed here are not those of HW Management, Admins, Mods or Myself... But they are the opinions of Elvis who has revealed them to me through the medium of my pet hamster, Lee Harvey Oswald...


MB

Growing old is mandatory ... Growing up is optional!

Offline M_ray

  • Non-Hunting Topics
  • Trade Count: (+7)
  • Frontiersman
  • *****
  • Join Date: Oct 2007
  • Posts: 4593
  • Location: I'm takin the 5th on this one
Re: diesel motor help please!
« Reply #52 on: September 26, 2016, 08:24:00 AM »
For you mechanics out there what about the wiring harness that runs under the valve cover and fires the injectors? I had mine burn on my 7.3 and it ran like crap and wasn't even firing a cylinder or two. Could it pose other problems like the OP is having?
DISCLAIMER: The opinions expressed here are not those of HW Management, Admins, Mods or Myself... But they are the opinions of Elvis who has revealed them to me through the medium of my pet hamster, Lee Harvey Oswald...


MB

Growing old is mandatory ... Growing up is optional!

Offline Woodchuck

  • GO TEAM!!!
  • Global Moderator
  • Trade Count: (+12)
  • Explorer
  • *****
  • Join Date: Mar 2009
  • Posts: 12049
  • Location: Walla Walla
  • HuntWA Woodblock
Re: diesel motor help please!
« Reply #53 on: September 26, 2016, 08:26:04 AM »
For you mechanics out there what about the wiring harness that runs under the valve cover and fires the injectors? I had mine burn on my 7.3 and it ran like crap and wasn't even firing a cylinder or two. Could it pose other problems like the OP is having?
Yes
Antlered rabbit tastes like chicken


Inuendo, wasn't he an Italian proctoligist?

Offline syoungs

  • Political & Covid-19 Topics
  • Trade Count: (+8)
  • Sourdough
  • *****
  • Join Date: Aug 2012
  • Posts: 2201
  • Location: tri cities, WA
Re: diesel motor help please!
« Reply #54 on: September 26, 2016, 08:37:02 AM »
could be this, or could be the main harness where it crosses the driver side valve cover has some chaffing, usually they wont die when ones unplugged or anything though, they just run like crap. if the injectors are starved for good clean oil, and one was unplugged, I could see one starting and dying later.

Offline Happy Gilmore

  • Business Sponsor
  • Trade Count: (+1)
  • Old Salt
  • *****
  • Join Date: Jul 2008
  • Posts: 5008
  • Location: Fall City, WA
Re: diesel motor help please!
« Reply #55 on: September 26, 2016, 09:34:42 AM »
Check glow plug relay. Or just replace it. They are cheap.
"Far better it is to dare mighty things, to win glorious triumphs, even though checked by failure, than to take rank with those poor spirits who neither enjoy much nor suffer much, because they live in the grey twilight that knows not victory nor defeat."
Theodore Roosevelt 1899

Offline WA hunter14

  • Trade Count: (0)
  • Longhunter
  • *****
  • Join Date: May 2011
  • Posts: 851
  • Location: Weippe ID
Re: diesel motor help please!
« Reply #56 on: September 26, 2016, 12:25:17 PM »
Try looking at the injector control pressure sensor also. Check for cracks.
That's the cup, you can unplug it and run the truck with it unplugged, if it's oily inside the sensor pigtail it's no good.

ok i unplugged it and turned it over, the truck did the same thing and just ran for a second. There does looks like some oil inside it though, do you think thats the problem? im going to next try and get the old oil out of the hpop and replace with fresh oil.

Offline DRobnsn

  • Non-Hunting Topics
  • Trade Count: (0)
  • Sourdough
  • *****
  • Join Date: Jan 2009
  • Posts: 1036
  • Location: wetside
Re: diesel motor help please!
« Reply #57 on: September 26, 2016, 01:56:28 PM »
One thing I've not seen mentioned yet is the CPS (cam position sensor). Very common problem and I have seen them exhibit the same issue your having. Do you know anyone with a running 7.3 you could swap it out with? I believe the Ford brand (only one I would use) is around $30 on amazon. If you have access to a good scan tool and the truck is equipped with OBD2 diagnosing would be much quicker. Also, even though you have new batteries keep a charger on them until you get the truck running, the 7.3's ecm need to see 150+ rpm before it will fire the injectors.

Offline Woodchuck

  • GO TEAM!!!
  • Global Moderator
  • Trade Count: (+12)
  • Explorer
  • *****
  • Join Date: Mar 2009
  • Posts: 12049
  • Location: Walla Walla
  • HuntWA Woodblock
Re: diesel motor help please!
« Reply #58 on: September 26, 2016, 02:02:09 PM »
94 will not be OBD2.
Antlered rabbit tastes like chicken


Inuendo, wasn't he an Italian proctoligist?

Offline DRobnsn

  • Non-Hunting Topics
  • Trade Count: (0)
  • Sourdough
  • *****
  • Join Date: Jan 2009
  • Posts: 1036
  • Location: wetside
Re: diesel motor help please!
« Reply #59 on: September 26, 2016, 02:05:41 PM »
94 will not be OBD2.

I believe your right but I've heard of factory updates on some of the OBS trucks that converted them to OBD2. 

 


* Advertisement

* Recent Topics

Let’s see your best Washington buck by high_hunter
[Yesterday at 10:31:08 PM]


Bearpaw Season - Spring 2024 by actionshooter
[Yesterday at 09:43:51 PM]


Walked a cougar down by MADMAX
[Yesterday at 08:31:53 PM]


Which 12” boat trailer tires? by timberhunter
[Yesterday at 08:22:18 PM]


Lowest power 22 round? by JakeLand
[Yesterday at 08:06:13 PM]


1x scopes vs open sights by JakeLand
[Yesterday at 07:29:35 PM]


Long Beach Clamming Tides by Encore 280
[Yesterday at 05:16:00 PM]


WTS Suppressors I Can Get by dreadi
[Yesterday at 03:30:33 PM]


SB 5444 signed by Inslee on 03/26 Takes Effect on 06/06/24 by Longfield1
[Yesterday at 03:27:51 PM]


Straight on by kentrek
[Yesterday at 03:04:53 PM]


2024-2026 Hunting Season Proposals by trophyhunt
[Yesterday at 01:51:40 PM]

SimplePortal 2.3.7 © 2008-2024, SimplePortal