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Looks like the 04 v6 AC compressor is shot

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AC quit working at low rpms, so I put her on the lift and checked the low side pressure. It was too high. I know that metering valve on the compressor can fail and cause this also, but not wanting to chance trying to repair a compressor with 140K miles on it,I ordered a new 4 seasons for 213 bucks from PartsGeek. We'll see. The wife will be very happy if I can get it going.
don-ohio
 
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Got the new compressor on there and vacuumed the system. Put about 29 oz. of USA made refrigerant and 2 oz. of oil into system. Compressor came with 3 oz. inside it.
Air is COLD and compressor running quietly. Hoping for the best.

Side note? Both my hi and lo pressure fittings have no caps on them. The regular 134 caps that screw on won't fit. Does the LS take special caps? don-ohio
 

Cactupuss

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AC quit working at low rpms, so I put her on the lift and checked the low side pressure. It was too high. I know that metering valve on the compressor can fail and cause this also, but not wanting to chance trying to repair a compressor with 140K miles on it,I ordered a new 4 seasons for 213 bucks from PartsGeek. We'll see. The wife will be very happy if I can get it going.
don-ohio
Hi Don,
Sorry I can’t give you any info about the caps... I’m facing ac compressor issues on my 04 LS8, is this much different than the v6?
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Cactupuss

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Do you know for certain it's compressor troubles? don-ohio
Thank you very much for the manual link, all I know at this point is that the compressor won’t switch on, I can’t refill any coolant, and I cant afford another trip to local garage.My goal is to fix whatever I can, build up my garage, and never look back
 
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Thank OWLMAN on that other site for that link. A compressor that won't switch on,eh? Well,you must have a certain pressure in the system for it to kick the AC clutch in. Also a fuse could be blown.
don-ohio
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