2002 TJ radiator replacement questions - JeepForum.com
 
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post #1 of 11 Old 07-16-2020, 08:36 AM Thread Starter
Peterbilt123
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2002 TJ radiator replacement questions

Hey guys,

I just recently purchased a 2002 wrangler 4.0 6 cyl with 113000 miles on it. I noticed the radiator was cracked on it after I replaced the radiator cap. I was curious if you guys would also change the water pump, thermostat, and the upper and lower hoses while I had everything apart and drained? Thanks for the help!

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post #2 of 11 Old 07-16-2020, 08:42 AM
jeepguy03
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If everything is original, yes I would replace them.

My go-to parts for Jeep 4.0L cooling systems:

-CSF 3 row or Mopar OEM radiator
-Mopar OEM water pump (or GMB water pump if Mopar isn't available)
-Stant Superstat 195* thermostat
-Mopar OEM lower radiator hose
-Dayco, Continental or Mopar upper radiator hose
-Mopar radiator cap
-Napa fan clutch (which is usually a Hayden re-branded)
-Goodyear Gatorback or Continental serpentine belt

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post #3 of 11 Old 07-16-2020, 09:44 AM
2jhanna
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Jeepguy, good list. You may want to add coolant type and quantity. That always seems to be a question here.

I am multi-talented, I can talk and piss you off at the same time.

jhanna
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post #4 of 11 Old 07-16-2020, 10:13 AM
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Originally Posted by 2jhanna View Post
Jeepguy, good list. You may want to add coolant type and quantity. That always seems to be a question here.
I usually just use the plain old Green stuff from Napa, and get 2-3 gallons of the pre-mix since it's cheap enough. Change it every 30,000 miles to keep the system clean.

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post #5 of 11 Old 07-16-2020, 04:29 PM
logem
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I'd suggest HOAT coolant such as Zerex G-05 or Mopar. Jeep switched over to recommending HOAT somewhere near 2001. It's a better coolant mostly because it doesn't need changed for about 150,000 miles. The "green stuff" should be changed every 30,000 miles at which point it starts becoming corrosive.

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post #6 of 11 Old 07-17-2020, 08:22 AM
Dale M.
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Basically I would replace serpentine belt (if original) and main hoses and radiator... IF all else is good you don't need to spend the extra money, if "something" is bad it will tell you....

Dale

“Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.
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post #7 of 11 Old 07-17-2020, 08:23 AM
Dale M.
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He also forgot heater hoses....

Dale

“Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.
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post #8 of 11 Old 07-17-2020, 09:03 AM
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Originally Posted by Dale M. View Post
Basically I would replace serpentine belt (if original) and main hoses and radiator... IF all else is good you don't need to spend the extra money, if "something" is bad it will tell you....

Dale
You don't NEED to replace anything besides the bad part, of course, but I for one hate having to drain everything out again to replace failed components that are cheap and much easier to get to when other stuff is apart.

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post #9 of 11 Old 07-17-2020, 09:04 AM
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Quote:
Originally Posted by logem View Post
I'd suggest HOAT coolant such as Zerex G-05 or Mopar. Jeep switched over to recommending HOAT somewhere near 2001. It's a better coolant mostly because it doesn't need changed for about 150,000 miles. The "green stuff" should be changed every 30,000 miles at which point it starts becoming corrosive.

p.s. I have used Prestone any makes and models for years. Guess what? Zerex and Mopar want your money.

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post #10 of 11 Old 07-18-2020, 06:47 AM Thread Starter
Peterbilt123
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Wow!

Thank you guys for all of the helpful information. I bought all of the parts and was getting ready to get this done today. I purchased new pulleys as well and it looks like that tensioner can be a real bear to get out of the alternator bracket. Do you guys have any pointers for the tensioner as well? I really appreciate all the help so far. Thanks again!
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post #11 of 11 Old 07-18-2020, 09:36 PM Thread Starter
Peterbilt123
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Well, I got it all done today. I just wanted to post this just in case there is a newbie doing the same job. Please get regular hose clamps to replace the squeeze clamps. Make sure the thermostat doesn't unseat and ruin your gasket. if you go aftermarket on the radiator like I did (not a daily driver) grab bolts to hold the fan shrowd in because the aftermarket radiators are not threaded like the original one. I guess if you have any questions, ask one of the many people that helped me out or I'll try my best to help anyone. Thanks to everyone that helped me out!
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