[pryornfld]

Originally Posted by 12Ounce

I think you're pretty close. The engine is revved up by the PCM ... which expects the ac to be loading up. If the ac is working normally, it's supposed to be a hardly noticeable thing ... but it always is somewhat noticeable.

I read that both the AC and heater operate thru the AC unit. if this is true, is there a way I can disconnect only the AC unit to verify if it is indeed low on freon? Or is there another test I could do to narrow down my problem?