When I start her up (96 XJ, 4.0) I get this horrible screeching sound for about 4-5 seconds and then it goes away. It was so bad that my little boy wanted to get out of the truck. Anyways, transmission? Power steering? I'm baffled. It comes from right below the engine (or at least it sounds like it).
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What the heck is that screeching sound?
- Thread starter CoastieJ
- Start date
89CherokeePioneer
NAXJA Forum User
- Location
- Massachusetts
It's the belt. Check and adjust the tension-obviously inspect and replace it if nessecary. In addition, lol, remove it and see that the idler pulley spins freely
Stihl029
NAXJA Forum User
- Location
- San Diego, CA
Yeah I would go with an Idler pulley somewheres I have one that is bad on my 88 and some times it can be horrible. Unfortunately mine is the one in the spot for AC and have been having issues getting the correct one in at the part's stores on island. The bearing seems to be too small and they are plastic pulleys now.
poorboy_616
NAXJA Forum User
- Location
- Vancouver, WA
Belt, Idler, or water pump can cause the squealing pig syndrome.....
JNickel101
NAXJA Forum User
- Location
- Alamogordo, NM
Flux capacitor low on fluid.
Yucca-Man
NAXJA Member # 683
- Location
- Castle Rock, CO
Is your a/c or defroster on when you start? If so, it's more than likely the belt. The added drag of having the a/c compressor engaged makes the belt squeal. You can either fix it (tighten or replace the belt) or make sure you don't start it with the a/c on. Beware of that second option though as you may find yourself stranded if it's a bad belt...
Jim www.yuccaman.com 96 XJ 4.0L
Jim www.yuccaman.com 96 XJ 4.0L
89CherokeePioneer
NAXJA Forum User
- Location
- Massachusetts
More likely not enough. How tight is it? Can you spin the A/C clutch by hand (the piece in the center of the pulley)
- Location
- long branch, nj
Roughly how tight is the belt supposed to be? I get the same problem with the squealing only with the a/c or defroster on. I'm thinking about just changing the belt though because it could probably use a changing.
Ivan
I Jeep, therefore, I am..
- Location
- Greensboro, Ga
The screeching sound could also be the ac clutch slipping on start up, if the ac is engaged when you start.....
cherokee chuck
NAXJA Forum User
- Location
- freeland,wa usa
Chiltons says 1/4" deflection between a/c & steering pump is the proper tension.sounds like a loose belt to me. belt dressing can also help.
Blaine B.
NAXJA Forum User
- Location
- Northwest Indiana
Belt dressing never works for serpentile belts in my experience. I believe belt dressing was engineered for V-belts.
