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Equipment & Gear => Power Equipment & RV => Topic started by: Night goat on January 14, 2017, 07:23:24 PM

Title: jeep wrangler TJ 4.0L radiator issues
Post by: Night goat on January 14, 2017, 07:23:24 PM: I have a jeep, had it for 11 years, and, I seem to go through a radiator every 2 years, im on radiator #3, and im getting fed up. stock radiator gave out around 75k, and have had to put a new radiator in every 12-15k miles since. I run green coolant, but, coolant shouldnt effect plastic, so, I attribute this to low quality parts.

when I had the mopar stock radiator in there, my jeep woild heat up to about 210deg and my heater was hot as hell, after several radiator replacements with plastic capped radiators, I run about 200deg. factory radiator cap was 18lbs, and ive been running a 13, because my radiator seals blow regularly. I know I have vaccuum leaks on the heater mixing flap and stuff, so, it runs cooler because of not building reccomended pressures, but... if I put a heavier cap, id blow my radiator faster...

my jeep has 112,xxx miles on it, and I consider it unreliable vecause I dont know when or where my radiator will blow next.

has anybody had radiator issues with thier 4.0L?

anybody know if a metal tank radiator for a jeep 4.0 that isnt 800$?
Title: Re: jeep wrangler TJ 4.0L radiator issues
Post by: Thehowler on January 14, 2017, 08:32:16 PM: I've had good luck with Performance Radiator in Tacoma. Replaced my factory unit at 120,000. Just installed my second Performance at 355,000 miles.
Title: Re: jeep wrangler TJ 4.0L radiator issues
Post by: coachcw on January 15, 2017, 07:19:09 AM: The replacement rads are not worth there wieght :twocents:, change coolant and keep up on your grounds .
Title: Re: jeep wrangler TJ 4.0L radiator issues
Post by: huntandjeep on January 15, 2017, 08:24:37 AM: The OEM radiator in your Jeep had plastic tanks and a metal core FYI. All the cheap replacements have the leaking tank issue . Either replace with OEM or spend some $ on a Good aluminum radiator. Go back to the 18lb cap. Check the heater resistor ( they melt) and cause no heat . I have a Drake Off-road aluminum radiator in my 98 . Been in there 5 years an no problems.
Title: Re: jeep wrangler TJ 4.0L radiator issues
Post by: jackelope on January 15, 2017, 09:40:29 AM: Quote from: huntandjeep on January 15, 2017, 08:24:37 AM
The OEM radiator in your Jeep had plastic tanks and a metal core FYI. All the cheap replacements have the leaking tank issue . Either replace with OEM or spend some $ on a Good aluminum radiator. Go back to the 18lb cap. Check the heater resistor ( they melt) and cause no heat . I have a Drake Off-road aluminum radiator in my 98 . Been in there 5 years an no problems.

This.
Title: Re: jeep wrangler TJ 4.0L radiator issues
Post by: Thehowler on January 15, 2017, 12:04:25 PM: Mid grade Performance went 14 years and 235,000 miles before I replaced it.
Replaced it for maintanence purpose only, no leaks. :dunno: