2006-08-21 01:25:14 · 7 answers · asked by Greg M 1 in Cars & Transportation ➔ Maintenance & Repairs
Sounds like the compressor may be locked up or getting ready to lock up. If so, you will want to take it to a shop and have the compressor replaced, expansion valve replaced, also replace the dryer, and flush the system. It's not cheap. Sorry for your troubles. Good luck.
2006-08-21 01:32:30 · answer #1 · answered by jeff s 5 · 0⤊ 0⤋
There are two possiblities that pop to my mind:
1) Stalls at idle only - IF this is the case, then there is the strong possiblity that the 'idle up' relay or solinoid is not working as it should. All AC compressors require horse power from the engine to work. In order to compensate for this extra pull on power, modern enigines have the ability to speed up the engine a bit when the AC is turned on IF the engine is idleing. One of the components of this process could be malfunctioning and create the problem you are experiencing but again.. only at idle.
2) Not at idle - If this engine stalls are lags at higher speed (probably associated with a high pitched squeal) there is an issue with the AC compressor. This could be caused by a compressor that is malfunctioning and abut to fail completely or it could be caused be clogged AC lines that is causing the compressor to build up a large amount of back pressure. I would suspect that the compressor is having trouble over the clogged lines UNLESS you've had recent work done on the AC.
This is also the possiblity that a combination of these factors (and a few more) is causing your problems.
Hopefully this will get you started on your diagnosis.
Good luck!
2006-08-21 08:39:58 · answer #2 · answered by wrkey 5 · 3⤊ 0⤋
Considering that the AC is in good working order.
The Idle air control (IAC) May need cleaning. Or the computer isn't getting the message that the air has been turned on. The computer automatically idles the eng. up when the ac is turned on to prevent stalling. In either case, you should take it to a qualified tech and have it checked out. ...Master tech 40 yrs.
2006-08-21 09:45:10 · answer #3 · answered by Cal 5 · 0⤊ 0⤋
Try to turn the compressor by hand once you have removed the drive belt from the AC pulley. Make sure you are trying to turn the actual shaft and not the electric clutch. A bearing in the compressor may have seized up.
2006-08-21 08:42:40 · answer #4 · answered by Thomas S 6 · 0⤊ 0⤋
The cam that ups the idle speed must be stuck.
2006-08-21 08:30:31 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Don't use the A/C. Take it to repair shop or look it up on google.
2006-08-21 08:30:24 · answer #6 · answered by Lee J 4 · 0⤊ 0⤋
Jeff has the answerer.
2006-08-21 08:34:32 · answer #7 · answered by bill a 5 · 0⤊ 0⤋