Engine Size: 2.5
Country of Origin: United States
i have a 2002 nissan altima. the compressor of the car seem to not be working correctly. when the compressor kicks on the ac works. however this doesnt last to long. when the compressor kicks off the car get very hot. also the compressor only stays on when the car is parked or standing still. when the car is driving it gets hot and the compressor doesnt work. also when the compressor kicks off the fans also stop working.
any help would be appreciated.
First, check the clutch gap. a wide gap or weak coil can cause this. Especially as the car warms up and the engine compartment gets hot. Next, do you have any blinking AC lights on the inside control panel? A low charge can also cause this, and if the clutch gap is within range (.02) then a vac/recharge may be needed, as some of those cars have rpm sensors that will shut the system down if you have belt slippage, to much cycling etc.. The pressures along with ambient temp would also help.. Hope this helps..
Freedoms just another word for nothing left to lose
Check if power is reaching the compressor clutch wire when it is supposed to be engaged but is not. If you have 12 volts but the clutch doesn't pull in it is going to be the clutch coil or gap.
If not it is a control problem. This car has a CAN bus and several computers involved in deciding to run the compressor or not. But you might just have a bad compressor relay. Or an error condition such as low refrigerant.
Could also be cutting off on high pressure. Try revving the engine (moderately, like up to 2500 rpm) with the car sitting still. Does the compressor drop out?
Edited: Wed September 03, 2008 at 8:19 PM by mk378
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