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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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  #1  
Old 04-14-2014, 07:14 PM
Tex484 Tex484 is offline
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Location: Houston, Texas
 
Join Date: Apr 2014
Posts: 11
Mein Auto: 2006 BMW x3
Question Don't know what to do?

Ok so I just changed my valve cover gaskets spark plugs and intake gasket get in the car start it up sounds good for a few sec take it for a spin around the block then it dies! So I let it sit over night get in start it up and it starts up and it running pretty good for while. So I take it out for a ride and it dies again. Not sure why triple checked all the conections and every thing it's like it not getting something gas or air I also changed some of my vacuum line thought this would help my x3 out but I don't understand why it is dieing any help would be nice thanks
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  #2  
Old 04-14-2014, 09:47 PM
Supercourse Supercourse is offline
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Location: British Columbia, Canada
 
Join Date: Feb 2008
Posts: 2,988
Mein Auto: 2004 X3 2.5i
There seems to have been a few cases of this lately - but I think the others have been with the more complex N52 engine.

Some commonality though for vacuum leak possibilities though, and I recall things like:

- new gasket seated in the cover properly all the way around (tends to fall out a bit at the rear when putting the cover back on)

- RTV sealant in the half-moons

- all valve cover fasteners tightened equally and not over or under tightened (89 in.-lbs. or just over 7 ft.-lbs.?)

- new seals used for the fasteners

- all ground connections re-attached (not sure how many there are in the center area and in total - two, three?)

- intake boot lined up properly with the notch at the MAF end
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  #3  
Old Yesterday, 05:42 AM
Tex484 Tex484 is offline
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Location: Houston, Texas
 
Join Date: Apr 2014
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Mein Auto: 2006 BMW x3
Thank you I will check these items listed and keep you updated
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  #4  
Old Yesterday, 01:19 PM
vwvwvw vwvwvw is offline
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Location: US of A
 
Join Date: Dec 2008
Posts: 159
Mein Auto: '08 X3, '08 535xiT (gone)
When I had this problem I disconnected the breather hose to the valve cover and plugged it to see if the vacuum leak was in the valve cover or somewhere else. (You must also plug the breather port on the valve cover so oil doesn't leak out.)
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