Any idea where to get a replacement AC compressor for my '93 RX 7? The old one seems to work, however seems to drag the engine so much so, it stalls.

 

New...Ray Crowe. Just search the 3rd. Gen. section for his name. Reliable and trusted OEM parts seller who also owns an FD. And savings over calling a dealership is usually significant even with shipping.
Used...post a want to buy in the parts for sale section.

That said, idle should be automatically raised when the A/C is turned on. ???

 

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This is normal if your car is not compensating idle for the A/C request.