TMM
OEM+
Hey guys, intermittently when starting my VY, about 3-5 seconds after starting the engine there is a violent clunk and a chirp from the serpentine belt and the tacho drops about 200-300rpm before recovering.
The idler pulleys have been replaced not too long ago and the belt doesn't slip at full throttle.
I assume this is caused by the aircon compressor engaging. It seems to be worse on hot days or when the car hasn't been driven for a while. When i turn the aircon on and off manually the compressor engages and disengages smoothly though?
Also sometimes when i stop at the lights after ~5 seconds of idling i can hear what sounds like the compressor engaging/disengaging and the tacho drops about 100rpm before recovering.
Any ideas what might be wrong?
Cheers!
The idler pulleys have been replaced not too long ago and the belt doesn't slip at full throttle.
I assume this is caused by the aircon compressor engaging. It seems to be worse on hot days or when the car hasn't been driven for a while. When i turn the aircon on and off manually the compressor engages and disengages smoothly though?
Also sometimes when i stop at the lights after ~5 seconds of idling i can hear what sounds like the compressor engaging/disengaging and the tacho drops about 100rpm before recovering.
Any ideas what might be wrong?
Cheers!
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