My A/C isn't working and when I put the low side psi guage on it was in the red @150, I also noticed that the clutch isn't dissengaging. Is there any tricks I can try to free up the clutch or do I ha

bryanrosean
0

Asked by Jun 27, 2012 at 07:55 AM about the 1998 Buick Park Avenue 4 Dr Ultra Supercharged Sedan

Question type: Maintenance & Repair

Clutch isn't disengaging on the A.C. pump

2 Answers

Andrew Olsen
14,715

unplug the connector for it or pull a fuse and see if it stops then. If it doesnt then the compressor clutch is bad. Get a new compressor

Jim Campbell
535

There are three computers that control the A/C clutch. Any one of them can be commanding the A/C clutch to be on. Plus, there could be a short to ground in the wire leading away from the compressor. You will need to have a GM technician check the system with a scan tool to find out if it is the PCM, the SBM, or the A/C control head. As far as the one hundred fifty PSI on the low side, obviously there is refrigerant in the system, or you would not get pressures at all. You could have a restricted low side line, you could have a missing orifice tube, or the compressor could be bad internally. What are the pressures on the high side? You need to know that before you replace the compressor.

Your Answer

Add photo

Related Questions

Search Buick Park Avenue Questions

Buick Park Avenue Experts

#1 Jking1838
Jking1838
Reputation 850
#2 Tom Demyan
Tom Demyan
Reputation 570
#3 Jim Campbell
Jim Campbell
Reputation 510
View All

Related Models For Sale

Used Buick LeSabre"
26 Great Deals out of 2,584 listings starting at $900
Used Cadillac DeVille"
2,313 listings starting at $1,999
Used Lincoln Town Car"
52 Great Deals out of 2,187 listings starting at $1,699
Used Buick Regal"
132 Great Deals out of 9,099 listings starting at $2,400
Used Mercury Grand Marquis"
53 Great Deals out of 2,458 listings starting at $990
Used Buick Century"
1,261 listings starting at $2,990
Used Chevrolet Monte Carlo"
18 Great Deals out of 2,010 listings starting at $1,436
Used Honda Accord"
1,121 Great Deals out of 72,473 listings starting at $1,400
Used Buick Riviera"
151 listings starting at $2,000

Used Cars For Sale

2005 Buick Park Avenue For Sale
3 Great Deals out of 41 listings starting at $2,500
2003 Buick Park Avenue For Sale
79 listings starting at $2,800