Air Con compressor wont engage ?
Thread Starter
Safety Car
Joined: Nov 2009
Posts: 3,973
Likes: 341
From: Adelaide South Australia
Air Con compressor wont engage ?
I had the air cond guy around to gas up the air con on my 85, put on a new accumulator, vacuumed system, pressure tested, but the compressor wouldnt engage, he checked all the switches etc he could find and they were ok, then checked terminals on the compressor, earth was ok but no power.
Ran a wire from the battery to the terminal and the compressor engaged, but no fan start up (air con guy said at least one fan must start up on compressor engagement)
does anyone know what the problem might be before i take it to the auto electrician ? Could it be a relay ?
Ran a wire from the battery to the terminal and the compressor engaged, but no fan start up (air con guy said at least one fan must start up on compressor engagement)
does anyone know what the problem might be before i take it to the auto electrician ? Could it be a relay ?
Safety Car
Joined: Dec 2008
Posts: 3,588
Likes: 10
From: North New Jersey
Its easy to do and painless... And if you replace the fuse and it blows again (assuming it is a blown fuse) it might be a short in the compressor...Thats what happened in my 92 Deville and that fuse also ran the torque converter in the tranny so the car would drive like an underpowered 4cyl
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Thread Starter
Safety Car
Joined: Nov 2009
Posts: 3,973
Likes: 341
From: Adelaide South Australia
thanks for the input guys, i checked the fuse first and its ok, it seems as if the power wire to the actual 2 prong terminal on the top of the compressor is not supplying power, the earth prong checks out ok, the power prong on the top of the compressor shows as an earth when checked with a tester ?
i dont mind the mechanics but the auto electrics on these cars drive me nuts !
i dont mind the mechanics but the auto electrics on these cars drive me nuts !
But do you have manual or Electronic A/c? 
