Questions & Answers for: ac knocking noise

...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

...but the noise is still there dont know what to do please help This may also be a warped flywheel. it also might be your compressor for your AC. Your AC will still work but it will make a knocking ...

...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 ...

...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 on face i hear a knocking noise coming from behind dash If it doesn't turn to the Face/dash. Then you have some work ahead of you. The motor is turning(causing the knock sound) but the door in 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 ...

...AC also acts as a dehumidifier. Is the knocking noise under the dash or from the engine compartment ? Reason is if it's coming from under dash it's the blender actuator motor locations usually behind ...