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Old 07-17-2013, 06:48 PM
LantanaTX LantanaTX is offline
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Location: Lantana, TX
Join Date: Jul 2013
Posts: 6
Mein Auto: 2004 BMW X5 4.4
Originally Posted by upallnight View Post
Sounds like you have a vacuum problem at the intake manifold or booster. Check all the hoses for cracks.
I checked the hoses and also see that it does not get vacuum from the manifold like billions of other cars. it has a vacuum pump that runs of the right bank cam. The problem is either the pump or the booster. It isn't easy to know which part failed but I have read the pumps are prone to fail. with two new seals it can be rebuilt. I ordered the seals and will rebuild the pump. If that doesn't work a new booster will be next.
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