AC Problems Was making a noise from the clutch or compressor. Sprayed lube and noise decreased. Charged unit to 50 and now ac is cold and noise is bearable but the motor is sluggish on hills and does not want to accelerate.

SOURCE: 2001 buick lesabre-ac problems

• Assumed your AC unit is OK, but uneven temperature distribution. Try to throw the heater on an off severtime. A sticky valve on the heater would cause similar problem.
  
• Observe the RPM while parking your car. While the AC cut in cut out (or turn on an off). If it cause no load on the engine. The freon may be low or the compressor is bad. In this case only the intake side of the evaporator is cooler than the other side.
  

SOURCE: remove clutch for ac compressor

I just removed the a/c clutch on my 1994 lesabre with a puller tool that I bought from RJ tools through EBAY for $23

honeymokey

• 3113 Answers
• Posted on Apr 09, 2010

SOURCE: ac clutch-1988 buick regal

It's low on freon

SOURCE: 98 BUICK REGAL GS AC compressor will not come on.

If the outside temp.sensor is reading -38 degrees then this is what is causing the compressor not to come on.You need to check the wiring to the outside temp.sensor and the sensor.Make sure it is connected.It is located on the front grill area.Between the grill and the bumper cover.Hope this helps.Good luck.

SOURCE: ac was working fine the

Check the low switch by the dryer or accumulator, its a long narrow cannister,

it will have a pressure switch attached to it or near it. put your, ac on high,

pull the molex off the switch and jump the molex with a wire or paperclip,

if the compressor comes on and the ac starts to cool, you will just need

to replace the low pressure switch, if the clutch does not come on,

check the low switch molex to see if there is 12vlts there. good luck!