Squeeling under the hood.

Does it happen with the serp belt off? If yes, it isn't the water pump. If no, then you know it's a belt-driven assembly.

Does it happen with the A/C on? With the A/C off? That should help you with a bad bearing on the A/C pump.

Using a screw driver as a stethoscope, can you hear it coming from the alternator? Put it on the alternator, not the bracket - less chance you will hear the steering pump if it is that. If yes, bingo. If no, next step.

Using a screw driver as a stethoscope, can you hear it coming from the steering pump? Put it on the pump, not the bracket - less chance you will hear the alternator if it is that. If yes, bingo. If no, next step.

Using a screw driver as a stethoscope, can you hear it coming from the belt tensioner? If yes, bingo. If no, next step.

Using a screw driver as a stethoscope, can you hear it coming from the water pump housing? I would do it last, because looking at my 1990 GMC Jimmy I think there would be quite a bit of "background" noise from this part.

Just be careful around the rotating parts. Hope this helped.

GMC Gremlin

The water pump makes a squelling sound that goes away after a short while of run time after a cold start. Made me think it was the belt but some water on the belt will make a belt noise go away thus narrowing it down. YOU"LL GET WET with the fan running LOL

-- Best Regards Gordie

Rob, Read my post a weeeeeee bit more carefully. Or... finish reading it. One or the other. Please.

GMC Gremlin

Someone ain't firing on all cylinders eh?

Doc

hehe I don't think that would cause a squeek though... lol

GMC Gremlin

I removed the belt to see if everything turned freely. Everything did and upon replacing the belt (with the same one)the noise is now gone, for now. I'll keep ya posted.