cyrnel

Do you have climate control or just the speed/duct/temp basic system?

When you say the AC comes on, do you mean you get a fan or just that the compressor kicks in?

Assuming you have the basic system and you just mean the clutch is engaging, the compressor needs at least these before it will engage:

- Dash a/c button on
- Duct/off dial not off.
- Accumulator pressure switch closed. (low charge will prevent this, unless it's failed closed)

All three have to be "on", or any one can be off to disable the compressor. If your dash controls are forkled I'd just unplug the pressure switch connector from the top of the accumulator. Cover the ends so junk doesn't contaminate the contacts. (or pull the fuse, as mentioned, once you find the culprit)

Edit: Didn't the 93's have R134a from the factory?

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