Air Conditioner - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

AU1SIXA · 12-04-2002, 20:20

Ok i have a problem

Aircon doesnt want to engage.
light works when i press the switch i checked the relay thats fine.
where should i start. i dont here a click when i switch the aircon on and i can see its not engaging under the bonnet i think its the compressor but im not sure what its called the thing that has the belt running to it. doesnt engage at all but when i press the aircon button the revs drop a little and then go back up.

Not to sure really need some help othgerwise its off to the Auto Elec.

Steve Barrett

Brent79 · 12-04-2002, 20:38

Hey man, try using a multimeter to test the clutch wire on yer compressor (blue) too see if its getting the 12ish volts to it... if not then yer low pressure cutout or high temp switch could be faulty. If u are getting the voltage and yer not clutch isnt engageing then i reckon its time for a new compressor :)

*Edit* Tho i think its yer compressor clutch coz u mentioned the engine reving up or whateva and that usually takes the signal after these switches, so it would seem yer getting that 12V at the compressor..

Brent

Falcon_Spac · 12-05-2002, 04:01

The compressor won't engage if theres little or no refridgerant gas. The solution to your problem, is that system is out of gas, True!

XplodEd EA · 12-05-2002, 04:09

Yep, compressor don't engage if the gas pressure is too low. Which means you probably have a leak in the system somewhere which is letting the gas out. Take it to an air con specialist and get it looked at.