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Vibration with ac on only in drive while sitting, not problem while driving.

(2005 Chrysler PT Cruiser)
in Orlando, FL on April 13, 2017
Runs very good while driving down the Rd with AC running, med vibration at stops. When I shift to nuetral it's not as bad but still has some vibration, shut off ac it's fine. Going to see if it changes with warm up or warmer weather today. Thanks on point I recall the idle slightly below 1000rpm not now, seems to be sensitive to types of fuel. Serviced the car after purchased it with: new plugs, wires, cleaned the throttle body. When the ac is off there is very little vibration! A mechanic said it's the motor mounts but why would it only vibrate with the ac engaged. Any help would be greatly appreciated.
Thank you!
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Popular Answer
Motor mounts would be my best guess. The reason it only happens when the A/C is on is because the compressor puts more load on the engine and those vibrations are being felt through the body. We'd be happy to take a look at it for you, let us know!
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