Questions & Answers for: ac compressor knocking noise

AC Compressor I have a 2003 Saturn Vue 4 cyl. manual transmission. Whenever I have the AC running there is an intermittent knocking noise. I believe the AC compressor vibrates when the knocking ...

...nothing changed. I would like to know if you have ran accross this problem. thanks This is AC compressor rattle, don't worry about it unless it is really loud, in that case replace the

...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, if it seizes up, ...

...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 ...

...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 and if it knocking ...

...ac compressor then it could be the ac pulley bearing test if it is the compressor by listening and then turning the ac off the pulley will still spin but the compressor stops if the noise remains , ...

...ac compressor The AC clutches go on those cars, if you can get the car in the air while its on you can use a long screw driver to touch the tip of the screw driver to the compressor housing and the ...

AC compressor noise When i bought this car the ac was not working. I tried to regas system but was no preassure. I changed ac condenser and the preassure in a system is fine, but when i turn on 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 ...

...AC compressor is going bad. Most vehicles also turn on the AC when in defrost mode, since the AC also acts as a dehumidifier. Is the knocking noise under the dash or from the engine compartment ? ...