Squeaking Noise

BMORGAN2510

MEMBER
2002 GMC ENVOY
6 CYL
4WD
AUTOMATIC
11,225 MILES

My 2002 GMC Envoy is making this squeeking sound, going down the street it does it quite often what could the problem be because it cause everbody on the street to turn and look at my car when I'm coming down the street.

Monday, December 13th, 2010 AT 2:19 AM

2 Replies

SAMG

MEMBER
3 POSTS

Well based on the fact that I work at a gm dealer I can tell you the idler pulley for your belt may have smoked a bearing. It could also maybe be u - joints. To check u joints remove the driveshaft from axles/transer case and see if they are hard to move. If they seem bound most likely the grease has rusted out or it is missing pins. As for the idler pulley remove the belt and check to see if the pulley has any play or ruff spots when you turn it, if so the bearing is out.

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Monday, December 13th, 2010 AT 4:11 AM

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Can you tell aprox where the sound is coming from? Does it change with engine speed? Try this little trick. Start the engine, open the hood and pour a small amount of water on the belt to see if the sound changes. Make sure to wear old cloths and protect your eyes. Water will most likely fling back at you.

Let me know what you find.

Joe

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Wednesday, December 15th, 2010 AT 4:44 AM