I have a 2002 Jeep wrangler x 4.0 112K miles, manual. When I start my engine I get this odd noise which I call "squealing" from the front area near the fan. I can't tell where its coming from or whats causing it. Jeep runs fine otherwise and it happens mainly when its cold outside.
Any assistance of what this might be would be greatly appreciated. Ive included a small link with video of engine and noise.
Just removed my belt to check my pulleys as I have a similar noise. Turn out I my tensioner pulley is noisey and has some play in it too. Guess what I am doing this weekend.
With 130k on the clock, it is due anyways the way I use my Jeep.
Just removed my belt to check my pulleys as I have a similar noise. Turn out I my tensioner pulley is noisey and has some play in it too. Guess what I am doing this weekend. With 130k on the clock, it is due anyways the way I use my Jeep.
Did my water pump recently. Almost every pulley on the jeep is trashed... Idler, Tensioner, and A/C (water pump was about gone). They squeal and make the same noise. Idler is like $25 tops
15 minute job and allies silent again. Once pulleys were off you could spin the old ones in your hand and feel as well as hear the grit in the old bearings.
I did have to go return the idler pulley and swap out for a Dorman unit as the first on would not seat properly.
Agree with those who say it sounds like an idler pulley. it's easy enough to check; pull the belt and remove the pulley, and spin the pulley on your finger. If the pulley does not spin smoothly it's bad.
Not sure what year they got rid of that. See you got a 97. Mines a 2000. Don't have it. Poster fill out your profile please. edit: profile helps see its a 2002 in your post should be no slack adjuster. Good idea though Jaws.
I just replaced my tentioner pully with one from autozone. It was about 12.00 bucks. There are two that pop up for the 1997 4.0, yours maybe different... One pulley is small the other is bigger in there system, you will need the bigger one. I bought both and matched them to the old tentioner pulley, it was the bigger one, which is cheaper!
You didn't have to replace the whole tensioner assembly? I went after a new one bc the bearings are bad in it and they said I have to buy the whole assembly and not just a new pulley.
mine does that when there is cold weather….Once the jeep is warm it stops
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