Question about 1995 Volvo 850
I have a 1995 Volvo station wagon. The air works fine when the car is first started. After the air goes off (I assume because of a thermostat) it does not blow any cold air. If you stop the car, it will blow cold air again, but then stops once it cycles off.
When you day the air goes on and off i assume you mean the compressor goes on and off. that is what moves th freon through the system. if you are getting cold air when the compressor is running then the problem is that the compressor is stopping and that would be because a pressure switch may be bad. it is possible that model has a thermal shut down too say if the compressor was low on lubricant and was overheating when it does run. but if it is a pressure switch that is failing and they do, it is an easy fix. if you follow the ac lines you will find the switch.it is small about the size of a sparkplug-attached to the ac line and will have a connector with two wires. if the car is running and ac is on but the compressor is not turning remove the connector and jump to two wires. the compressor will start running if the switch was bad and we are sure there is a good charge on the system. if you are getting cold air there should be a sufficient charge to close the switch. these switches can be removed without losing any freon. there is a valve below them that will shut off when the switch is removed. then all you have to do is get a new one and screw it into place,apply the connector and you are done. if that is the problem. hope this helps please let me know and good luck
Posted on May 19, 2010
Testimonial: "Good advice!"
If it were the pressure switch, it wouldn't work at all......EVER. I just fixed mine with the same problem. You need to shim the clutch. It works when cold but not when warmed up because the magnets are not strong enough to pull the clutch in when warm. Shove the clutch in with a broom handle carefully while running and the clutch will kick in and work, that is the way you know I am right.
Posted on May 25, 2010
How do you find the clutch in the compresser. I want to try to do it on my own but need information. Also I am having issues with misfires. When I drive on the interstate it is fine but when I drive on the regular road my car takes a while to get to speed to the point were it feels like it will stop. Does anyone have any idea what this is?
Posted on Aug 20, 2012
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