View Full Version : chevy fan belt

12-16-2010, 12:39 PM
my 4x4 has the sweet chevy squeeky fan belt what makes it do that and whats the cure cmon chevy gurus

12-16-2010, 05:46 PM
Are they tight, are they worn? Power steering or altenator belt?

12-16-2010, 05:58 PM
Fords had an alignment issue with their 5 and 5.8 litres in the '90s with serpentine belts. Fix was to move power steering pulley out (sometimes in) to line it up. Only took 1/16" or so and it would squeal like a bastard. Might work if you have a serp belt

12-16-2010, 06:10 PM
There tight idk what ones squeekin

12-16-2010, 06:14 PM
check ur altenator I had a rebuilt one I bought start to go bad and it was what was causing the noise went in and got a new one no more noise till my power steering pump started to make noise when turning but I have been to lazy to fix it. Power steering one will make more noise if u turn altenator usually goes with engine revs

12-16-2010, 06:23 PM
It's noisy on warm up then it goes away mostly

12-16-2010, 06:29 PM
check the altenator out the bearing might be starting to go mine would whine on start up then go away kinda like my power steering pump is fine until I go to back into my house and then it whines and screams but I have to swap the motor so to hell with it it can wait. When I pulled it out I spun it and u could hear the whine still worked fine though.

12-16-2010, 06:34 PM
Kinda what I was thinking any one got a spare alternator?

SBC hris
12-17-2010, 08:17 PM
Had the same problem, changed the alternator, didn't work. Turned out to be the water pump.:dontknow:

Always broke
12-18-2010, 11:48 AM
to make the problem easier to find with the engine running put a bar of soap on the inside of the belt if the squeal goes away its the belt or alignment issues if not probably water pump or alt.

12-18-2010, 12:20 PM
Ahhhh that's a good idea will the soap fuck up the belt ? Or make it slip

old codger
12-18-2010, 04:25 PM
I used a lenght of 1/4 steel rod 36" long pointed one end, with the engine running rest the pointy bit on the alt-waterpump- power steeringpump etc,
then rest my ear against the rod,and would usually come with the offending item, CAUTION! DON"T PUT THE POINT END IN YOUR EAR!!!

Always broke
12-18-2010, 05:06 PM
Ahhhh that's a good idea will the soap fuck up the belt ? Or make it slipNo it actually makes the belt work better[cheers]

12-18-2010, 07:56 PM
ive seen the pulleys worn on the sides causing the v belt not to sit right

01-11-2011, 05:01 PM
could be the tenchener pully :confused0006:sand paper on alternator

01-18-2011, 09:31 PM
use a bigger bar to hold the altenator when you tighten the belt, that worked for me before