Macan360
New member
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My 987.1 Cayman S has started making a whining noise at about 1900 RPM. It also sometimes makes a noise like two pieces of metal rubbing together. This comes and goes but can be fairly loud and sounds like its coming from front of the car.
I have now noticed that if you turn the air conditioning fan off which automatically cancelles the auto. The whine and the metallic noise goes away.
This would seem to indicate the air conditioning in some way but I can't work out why the engine RPM has an affect. I drove it 25 miles with air con on and the whine occurs. Drive 25 miles with air con off and no whine occurs. The metallic noise is only audible at slow speed because of general vehicle noise but only occurs with air con in auto it seems.
I am interested as to what is going on. Car is on a Porsche warranty so not over concerned but would like your thoughts before booking it in. Talking with my local OPC they have offered no opinion
Thanks
Cayman295 (Trevor)
My 987.1 Cayman S has started making a whining noise at about 1900 RPM. It also sometimes makes a noise like two pieces of metal rubbing together. This comes and goes but can be fairly loud and sounds like its coming from front of the car.
I have now noticed that if you turn the air conditioning fan off which automatically cancelles the auto. The whine and the metallic noise goes away.
This would seem to indicate the air conditioning in some way but I can't work out why the engine RPM has an affect. I drove it 25 miles with air con on and the whine occurs. Drive 25 miles with air con off and no whine occurs. The metallic noise is only audible at slow speed because of general vehicle noise but only occurs with air con in auto it seems.
I am interested as to what is going on. Car is on a Porsche warranty so not over concerned but would like your thoughts before booking it in. Talking with my local OPC they have offered no opinion
Thanks
Cayman295 (Trevor)