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Old 09-17-2015, 10:13 PM
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hunds02 hunds02 is offline
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Location: Cleveland, Ohio
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Quote:
Originally Posted by David.X5 View Post
I've replaced valve and the pump. Found a guy in Maryland that rebuilds them, if anyone needs that. Remember there is an electrical solenoid that opens and closes the manifold vacuum line that runs to the vacuum operated valve on the front of the cylinder head.

Anyway, what I've read is the the vacuum valves go first, allowing exhaust gases to flow back into the pump and ruining them. So, always check solenoid and valve operation when replacing one of these secondary pump
Where is the solenoid? The valves are different on 2004 to 3006 models. There's no tubing coming off my valve like the older models. Only two openings, one to the exhaust manifold and the other is the inlet port for the air pump
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2005 BMW X5 3.0i
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