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Hot Air Blowing - Compressor working 99 Buick

TGMcCallie on Sun July 20, 2008 10:05 PM User is offline

Year: 1999
Make: Buick
Model: LaSabre Custom
Engine Size: 6
Refrigerant Type: R134

GM Tech on Sun July 20, 2008 10:36 PM User is offline

V-5 compressors will turn with only 5% of system refrigerant charge amount in them-- Number one failure mode is loss of refrigerant due to a shaft seal and/or compressor case o-ring leaks- both can be fixed.

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The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

TGMcCallie on Sun July 20, 2008 11:30 PM User is offline

Should the repair shop have found the leaking shaft seal and or O-ring when they charged it up. They said they could not find any leaks.

The auto had gone for about a year not running before I bought it. Could this have caused the seal problem?

Thanks

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