I am having an issue with my Honda Civic 2005. When the engine is idling and the air conditioning is on, the engine starts to click and shake irregularly. There are no check engine lights on in the car.

The a/c condenser has been replaced several weeks ago and this issue only came about after the "repair". The engine appears fine when the air conditioning is not on.

Any help is appreciated.


Honda Civic 2005 engine clicking noise when a/c on - YouTube

 

sounds like your compressor is getting stuck. happened to my 96 and it stopped once i let some freon out.

 

Make sure that both of the radiator / condenser fans are running while the A/C is on.

If the condenser was damaged in a crash, leading to replacement at a body shop, realize that body shops are notorious for not knowing much about A/C. The system could be contaminated with air and / or overcharged with refrigerant or oil. Any of those will cause overpressure similar to what happens when the fans don't work. Overpressure causes the compressor to bog down the engine.