94 volvo 850, non-turbo, auto, manual climate control, 250,000 miles.
A/C delivers cold air, freon level/pressure good, but A/C clutch dis-engages after about 5-10 minutes when using low or medium fan settings. With fan/blower on max position A/C works continuously. No problem.
When A/C stops, I have to wait 3-5 minutes with A/C and/or fan turned off, then clutch will re-engage.
Most prevalent on hot days when air temp is 80 F or above.
Again, not a cycling problem due to low freon. With blower at max speed (#4) A/C will work continuously, but at any other fan speed, A/C works for a while, then cuts out.
This is used car, previous owner said he thought there might be leak in system. Had system checked, no leak with any components under the hood, but suspect maybe small, small leak in evaporator as I have to add can of freon every 60-90 days.
Appreciate your help.
have the same problem?
Wednesday, August 1st, 2007 AT 4:05 PM