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BMW x5 2005 4.4 unknown problem BMW x5 2005 4.4 unknown problem
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  #1  
Old 02-27-2012, 05:40 PM
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BMW x5 2005 4.4 unknown problem
So after changing 8 coils and mass airflow sensor..and $ 1,400 later my love is still acting up. This happens mostly in the morning. I start it..it settles and starts shaking, sometimes goes away after a re-start, sometimes check engine light comes on. Now they are cleaning up the injection system... Anyone else has had this problem???? It went for days without shaking, and then one day starts again...they said i've had many misfires on both sides even after all they have done to the car..back in the shop since saturday once again..

Help!!!
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Old 02-27-2012, 06:10 PM
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Hey, first, welcome on board.

I have the same symptons before, and the next thing that'll happen is, oh boy, you won't believe me, but it happened on my 01 3.0i, it blew my engine cover gasket and oil gushed out from there lighted up when in contact with exhaust manifold.

GL

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Originally Posted by Irisha20 View Post
So after changing 8 coils and mass airflow sensor..and $ 1,400 later my love is still acting up. This happens mostly in the morning. I start it..it settles and starts shaking, sometimes goes away after a re-start, sometimes check engine light comes on. Now they are cleaning up the injection system... Anyone else has had this problem???? It went for days without shaking, and then one day starts again...they said i've had many misfires on both sides even after all they have done to the car..back in the shop since saturday once again..

Help!!!
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  #3  
Old 02-27-2012, 06:12 PM
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when the service engine soon (SES) light comes on, what codes are you getting?
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Old 02-27-2012, 09:34 PM
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this sounds like a vacuum leak, check the hoses that run to the brake booster and all associated vacuum lines. The vacuum lines that run to the brake booster can look fine and hide a break easily.
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Old 02-27-2012, 09:35 PM
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Quote:
Originally Posted by LeiZ View Post
Hey, first, welcome on board.

I have the same symptons before, and the next thing that'll happen is, oh boy, you won't believe me, but it happened on my 01 3.0i, it blew my engine cover gasket and oil gushed out from there lighted up when in contact with exhaust manifold.

GL
that sounds like you had a frozen or plugged oil separator.
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Old 02-27-2012, 09:43 PM
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Yeah just for fun change your oil separators... it's around $35 and takes about 15 minutes to do both of them.
My 05 4.4i was studdering a bit in the AM, then I changed them out and it's been great ever since.
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Old 02-27-2012, 10:57 PM
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how many miles on the ride ? thx
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Old 02-28-2012, 02:00 PM
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Quote:
Originally Posted by LeiZ View Post
Hey, first, welcome on board.

I have the same symptons before, and the next thing that'll happen is, oh boy, you won't believe me, but it happened on my 01 3.0i, it blew my engine cover gasket and oil gushed out from there lighted up when in contact with exhaust manifold.

GL

ohhh greattt!
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Old 02-28-2012, 02:00 PM
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how many miles on the ride ? thx
66,700
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Old 02-28-2012, 02:02 PM
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The guy will call me back with the error codes...now they are cleaning the injection system...for some reason i have doubts that will fix the problem.
I did telll them what you guys wrote here..check the oil seperators and that possibly a vacuum leak...Im a girl..i dont think they take me seriously ...

GRRRRR
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