In my 97 Accord, while i'm at a light, or just stopped and i have my AC on, is it supposed to somewhat vibrate every minute or so? It just starts to shake then stops. Anyone else seen this happen before?

Thanks

 

the vibrating is probably from the AC compressor turning on.

 

happens to me.. well used to.. i have no more freon

 

Thanks. STill gettin used to an accord :\

 

Every time the compressor kicks in, the engine speed drops momentarily as the load on the engine increases. There is a vacuum servo which increases the throttle opening when this happens, adjusting the idle back to the correct RPM.

 

This can also happen when your radiator fans switch on.. the ELD (Electric Load Detector) increases the idle to compensate the extra load when you have switch on the A/C

 

you may have a rear motor mount starting to go bad.........