A/C clutch not engaging.

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Richard - 01 May 2005 04:48 GMT

Is there a single most likely cause for the A/C clutch not to engage? Car
was parked over the winter and I just noticed this the other day.

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Richard

'94 GT 'vert
Under Drive Pulleys
Transgo HD2 Reprogramming Kit
High Stall Torque Converter
4:10 Gears
Gripp Sub Frame Connectors (welded)
FRPP Aluminum Drive shaft
FRPP M5400-A Suspension
Laser Red

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Kathy and Erich Coiner - 01 May 2005 05:26 GMT

There is a pressure switch on the system. Low pressure will prevent the
clutch from engaging. Think leak and no mo' freon

Erich

> Is there a single most likely cause for the A/C clutch not to engage? Car
> was parked over the winter and I just noticed this the other day.
[quoted text clipped - 11 lines]
> FRPP M5400-A Suspension
> Laser Red

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RichA - 01 May 2005 06:33 GMT

>Is there a single most likely cause for the A/C clutch not to engage? Car
>was parked over the winter and I just noticed this the other day.

I burned up two of those clamp-type clutches in my 1993 Mustang.
I don't know if using the car for aggressive driving and clutch
engagement works to well, the rubber-plastic thing wears out.
Then, they make you replace the whole compressor.
-Rich

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Armon Tanzerian - 01 May 2005 23:15 GMT

You can easily replace the clutch without replacing the whole compressor.
MUCH cheaper and easier too!

RE: the 94... First thing to check, as mentioned is whether the low-pressure
switch is preventing it from engaging. Other than that there are a bunch of
different things that can cause it!. I recently had to replace the relay
box on mine due to a non-working compressor.

>>Is there a single most likely cause for the A/C clutch not to engage? Car
>>was parked over the winter and I just noticed this the other day.
[quoted text clipped - 4 lines]
> Then, they make you replace the whole compressor.
> -Rich

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