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Grinding screeching kind of sound

Grinding screeching kind of sound

Postby Tull1981 [OP] » Oct 22 2019, 2:59am

Some times when starting my 06 gmc slt i get a strange wineing grinding kind of sound ive changed the belt and tensioner pulley and idler pulley. Sound dont change at all if u are driving stays the same no matter what. Seems like it only does it after hours of sitting as well. Truck runs great and everything works
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Re: Grinding screeching kind of sound

Postby plant.one » Oct 22 2019, 5:41pm

have you checked stuff like your alternator? those have bearings that can fail too.
08 silverado 1500 LT Z71 4x4 CrewCab
Stage 1 Cam, DOD/AFM Delete, Performance Valve grind, Port/Polished intake/exhaust, custom tune.

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