Questions & Answers for: ac knocking

...knocking noise. I believe the AC compressor vibrates when the knocking happens and it sounds like that is where the knocking is coming from. Does anyone know if this is my problem or what might be my ...

Knocking noise from AC compressor At about 3000 RPM I hear a knocking noise from my 1991 MR2's AC compressor. This happens if the engine RPM is increasing or decreasing. I would replace the compressor

...theres a way to check it out to see if its shot, id like to know? Also what does the knock sensor actually do? Thanks, I would appreciate it alot!! Bill Brado They are located below the intake ...

...knocking sound when AC is on Whenever I turn the AC on in my 2000 Chevy Malibu, it makes a very loud knocking noise - especially when the AC is on low. What could this be? Is it noisy with only the ...

...knocking from any ac compressor, you may hear loud clicking or squeal but not knocking. I would take it to any garage and any good mechanic can listen to the engine and tell you what the knocking is ...

...spark timing based on the knock sensor (KS) signal being received. The knock sensor produces an AC signal so that under a no knock condition the signal on the KS circuit measures about .007 V AC. ...

...knocking sound when in gear and it become more if AC is ON and if i put it in neutral this sounds goes off Pls any one knows the reason check your crank pulley,possible the rubber which is used on it ...

...ac system there is knocking sounds probably in ac compressor. I filled up with r135a. I read there is pag oil, do i need to fill up and this one, will it remove the knocking noise? it will not ...

...knocking noise while 2009 impala engine is off while using the ac clicking noise comes on but turns off when controller is changed also a knocking noise came on when I unlocked the door Check the ...

...ac goes on a large knocking noise can be heard from inside and outside my car ,sounds like it's coming from passenger side dash board Check your AC compressor & clutch open the hood,running with ...