hello again! i also have had problems with a squeaking annoying noise coming from my engine. i replace the serpentine belt, all the pulleys and tensioner. the problem still exist! what else could it be? (water pump maybe)?

 

it could be any of the pullys, start by taking off the belt and spinning them each by hand to see if you can hear one of them squeak, also make sure they all spin smoothly, any that squeak or do not spin smoothly are going bad and need to be replaced

 

you can also spray some wd40 on the belt while its running (watch out for he fan while its running) underside is the best.. if the noise stops then its your belt.. the belt can make the noise very easily if its getting water dripped on it by a failing water pump. keep an eye on your coolant level and operating temps for a while.. make sure your not leaving a puddle when you park..

 

i replaced the belts several times, it will run fine for a week or so then it starts back up squealing again. i also replaced all the pulleys.

 

If you replaced the belts several times and later on it starts to squeal, I would recheck your belt alignment to all the pulleys and make sure it is tracking straight. An off set pulley of belt not sitting properly in the grooves will cause this problem. Worth checking into. By the way, Goodyear belts suck, they stretch out too easily. I would replace belts with one made from Gates.

 

Did you check your tentioner pulley?

 

I recently had this problem and funny enough it was the water pump. For some reason (I did not really understand) the water pump was kind of shaking (screw loose). This was causing a vibration on my serpentine belt, which was causing the squealing... no matter what else I changed/fixed. In the end it started to heat up, got the water pump fixed and no more squealing noise.

Hope that helps

 

Does the squeak change? Like when the RPMs are up, or is it consistent?

 

Yes the pitch gets worse as rpms are elevated! its annoying! iwill try th water pump next!

 

just a wild idea & ignore if the squeaking happens when you are stationary, but squeaking can be the sway bar bushes if your driving a long - and they really squeak

Chris