tpole

Hey guys, I have a 95' civic d15b7 engine. I get direct vibrations going in and out while the ac is on (coming from the left lower part of the engine), sometimes it almost sounds like a knocking sound when I accelerate and even effects how I shift. The minute I turn the AC off the noise and vibrations go away and it drives normal. could it be a belt, the compressor, low charge, or just something lose.

tony_2018

Pop hood
Start car
Turn on AC
Walk out and look at your ac compressor and report back what its doing.

tpole

I can only replicate this while I'm driving it won't vibrate in park and if It does it only does for a few seconds.

Update: I managed to get replicate it a little bit, with the AC on blast in park in can hear a slight knock and if you touch the high-pressure hose you can match the sound to what your feeling as well as if you touch the compressor. When I am driving it must get 10x worse because it shakes my foot on the brake pedal. AND the ac still blows cold and has good charge.

tony_2018

if you confirmed that it is your ac compressor then it needs to be replaced.