Having problems with your 1998 GMC Sierra ?

I have a 1998 GMC Sierra. v-6 vortex. I get a real loud noise which seems to come from the a/c come from the compressor. It doesn't change when the a/c is on or off. The sound sounds like bearings on a boat trailer going out. This is an old work truck and I don't want to sink alot of money into it. What will happen if I just let it go on making the noise?

Posted / edited by AnonymousUser on : 15-01-2018

Answers :

The noise is your A/C pump clutch bearings. You can have the clutch replaced or possibly buy the belt for the truck that didn't come with A/C and it may fit without routing it around the pump pulley. If you leave it, the bearing will eventually fail and the belt will shred. You'll lose power stearing, cooling and charging...not good.
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I have a 1998 GMC Sierra. v-6 vortex. I get a real loud noise which seems to come from the a/c come from the compressor. It doesn't change when the a/c is on or off. The sound sounds like bearings on a boat trailer going out. This is an old work truck and I don't want to sink alot of money into it. What will happen if I just let it go on making the noise?


The noise is your A/C pump clutch bearings. You can have the clutch replaced or possibly buy the belt for the truck that didn't come with A/C and it may fit without routing it around the pump pulley. If you leave it, the bearing will eventually fai ... 1998 GMC Sierra

I have a 1998 GMC Sierra. v-6 vortex. I get a real loud noise which seems to come from the a/c come from the compressor. It doesn't change when the a/c is on or off. The sound sounds like bearings on a boat trailer going out. This is an old work truck and I don't want to sink alot of money into it. What will happen if I just let it go on making the noise?


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