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2006 Uplander AC compressor starts up with a grind

Uplander 2005-2009
This sport-van offers a sporty feel and roomy interior, all in the body of a minivan.
Platform: U-Body

2006 Uplander AC compressor starts up with a grind

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Old September 16th, 2018, 10:31 AM
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Default 2006 Uplander AC compressor starts up with a grind

Can someone tell me what is wrong?
I made a YouTube video of the noise.
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Old September 16th, 2018, 3:21 PM
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Sounds like you'll need a new AC compressor. If the AC is off and it doesn't make noise that rules out a tensioner bearing going south.
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Old September 17th, 2018, 11:03 PM
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i didnt hear it, but if mine made noises i wasnt accustomed to hearing i would give it an ounce or less of pag oil and hope for the best

Last edited by 12three; September 17th, 2018 at 11:06 PM.
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Old Yesterday, 12:45 AM
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Originally Posted by 12three View Post
i didnt hear it, but if mine made noises i wasnt accustomed to hearing i would give it an ounce or less of pag oil and hope for the best
Looks to me like the OP started the engine up with the A/C in the "on" position. If so that's not a valid way for us to Dx his issue. It's probably the compressor, but still could
be the pulley/tensioner bearings. Still, no word on A/C pressures isn't helping figure this issue out. Removing the SPT-belt and spinning the pulley would be helpful too.
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Old Yesterday, 6:00 AM
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Originally Posted by oilcanhenry View Post
Looks to me like the OP started the engine up with the A/C in the "on" position. If so that's not a valid way for us to Dx his issue. It's probably the compressor, but still could
be the pulley/tensioner bearings. Still, no word on A/C pressures isn't helping figure this issue out. Removing the SPT-belt and spinning the pulley would be helpful too.
no I actually started the engine up with ac off. But the moment I turn the ac on you can hear a bang, itís not super loud and it goes away immediately. Itís probably the compressor since itís original which is 12 years old now and belt is also original.
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Old Yesterday, 10:56 AM
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Originally Posted by Guest View Post

no I actually started the engine up with ac off. But the moment I turn the ac on you can hear a bang, itís not super loud and it goes away immediately. Itís probably the compressor since itís original which is 12 years old now and belt is also original.
ok i heard something at that moment. not sure what it was.. maybe if you leave your mic by the compressor it would be clearer, but the cheap advice is probably the same: check that high and low pressures are normal, rule out the belt/pulley... add no more than an oz of correct weight pag oil and pray
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Old Yesterday, 3:20 PM
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Originally Posted by Guest View Post

no I actually started the engine up with ac off. But the moment I turn the ac on you can hear a bang, itís not super loud and it goes away immediately. Itís probably the compressor since itís original which is 12 years old now and belt is also original.
Yeah, that's what I am thinking too. A/C compressors can last along time. Depends on use mostly.
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