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Determined Determined is offline
Join Date: Jan 2005
Location: Gilroy, California
Posts: 3,531
2006 Cayenne S Valve Cover Gaskets Replaced, now No Start

Hello Cayenne friends,

I tackled my valve cover gasket replacement today on my 2006 Cayenne S, I took precautions to make sure the rear cleared properly during removal on both sides. I disconnected the wire harness from the AC compressor to give me plenty of slack.

I'm not sure if should have done this but I washed both of my valve covers and let them sit in the hot sun until they were fully dried, I also used forced air to dry it. I did cover my Air/Oil Separator with a rubber glove.

After reinstalling the covers with the caution for clearance to the rear area of the valve covers I lined up the holes and reinstalled, everything aligned up nice with nothing forced. I put in new Bosch spark plugs while I was there and torqued them to specification.

Once all was back together I went to start the car and it turned over and continued to turn on its own but no start. I noticed that the brake pedal was hard as hell and my gauge cluster finally after turning over gave me a ABS failure message. I connected my code reader and no faults came up, car sounds funny while turning over and will not start. Is it possible that a vacuum line or my Air/Oil separator is creating the no start? Brake pedal feel is hard and not normal. I don't believe the valve cover install itself went wrong, should I disassemble or look elsewhere? Any help is appreciated, I don't want to do more harm.

Best Regards,
Its easier asking dumb questions than fixing dumb mistakes
1974 Porsche 911 Coupe, RSR Project
1976 Porsche 911 Targa, Black
1986 Porsche 911 Carrera, Black
2006 Porsche Cayenne S, Black
Old 06-10-2019, 09:07 PM
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