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7 Series - E38 (1995 - 2001)

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  #1  
Old 11-08-2012, 08:09 AM
bigd503 bigd503 is offline
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Location: troutdale
 
Join Date: Sep 2012
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Mein Auto: 2000 bmw 740i
My car is shaking bad when I start it up and when I give it a lil gas it has a winding noise and I have a exhaust smell inside my car please help me


It just started today and I don't have a engine light on

Last edited by M.Wong; 11-08-2012 at 11:25 AM.
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  #2  
Old 11-09-2012, 05:47 PM
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BigBoy740il BigBoy740il is online now
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Mein Auto: 1989/1991 E30; 2000 E38
You might want to check the following things. For starters... What is the mileage, does the whining sound like a metal chain dragging? Is the noise just when you start the engine or is it constant? Anyway, you should check the timing chain tensioner (chain slap on start up), timing chain guides (constant metalic whine/sometimes accompanied with a check engine light and vibration), and engine codes (this should be your first check). Although you claim you don't have a CEL, fault codes can indicate a failed or failing part. You should also check for a vacuum leak. Remove the plastic engine cover, start the engine, and spray carb cleaner around the intake, manifold, injectors, etc. A rise or fall in rpm would indicate a leak. Next, is the car emitting white smoke from the exhaust? If it is, you may have a bad OSV. Finally, check your catalytic converters. Clogging can cause the engine to hesitate, vibate excessively, or lack power. Simply unscrew you O2 sensor and see if your problem improves. If you have bad cats, you need to determine if your E38 is 48 state or California legal as the cats are different. Good luck.
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Last edited by BigBoy740il; 11-09-2012 at 06:04 PM.
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  #3  
Old 11-09-2012, 06:13 PM
bigd503 bigd503 is offline
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Location: troutdale
 
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Mein Auto: 2000 bmw 740i
Hey my name is Derrick give me a call and ill tell u what is going on 503 933 4364

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Last edited by bigd503; 11-09-2012 at 06:14 PM.
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  #4  
Old 11-09-2012, 06:14 PM
bigd503 bigd503 is offline
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Mein Auto: 2000 bmw 740i
Its 5039334364 my bad

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