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  #1  
Old 01-11-2010, 07:50 AM
vinnysrt8 vinnysrt8 is offline
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Mein Auto: 2001 740il sport
99 740iL - Rough idle in park and drive

99 bmw 740il rough idle in park and drive. the car has 109000 miles. could it be the spark plugs and how hard is it to change thanks vinny
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  #2  
Old 01-11-2010, 07:26 PM
vinnysrt8 vinnysrt8 is offline
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Location: harrison ny
 
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Mein Auto: 2001 740il sport
bump
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11 Second club
2007 JEEP SRT8
V-3 Vortech Supercharger, Borla S, 180 t-stat, diablo sport predator,
Eibach lowering springs, shorty antenna, crossed drilled and slotted rotors, dash hawk,
20% tint,tinted tails, rammedic23 fiberglass hood.
2004 Kawasaki KFX 700
2002 Bat boat 28 ft 900 hp 105mph
2001 Bmw 740IL sport
1999 Bmw 740IL
1972 nova ss 454 big block
  #3  
Old 01-24-2010, 11:55 AM
rrtec's Avatar
rrtec rrtec is offline
Bored Worker
Location: TN 37174
 
Join Date: Sep 2008
Posts: 819
Mein Auto: 540i/6 4/99
Any idea of the service history? Could be a plethora of things..

Vacuum Leak
Bad Gas
Fuel filter
air filter
ECU

The list goes on.. Any other symptoms? Check engine light? throwing codes at all?
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2001 740il Sport- Needs maintenance.. Parts ordered..
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  #4  
Old 01-25-2010, 04:15 AM
crkrental crkrental is offline
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Location: Romania
 
Join Date: Dec 2009
Posts: 12
Mein Auto: 760lia
Changed Plugs..

I haave the same problem and I changed the plugs and coils and I have the same problem still but not as bad as before. I will take mine 760li to the dealer when I arrive back from Amsterdam. I think this is the best solution for this type of problem. I've been to several places and they tell me the same ol story about the coils and plugs. Will let you know more when I find out the problem with mine car.
  #5  
Old 01-25-2010, 10:58 AM
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TerryY TerryY is offline
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Location: Woodland Washington
 
Join Date: Jul 2003
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Mein Auto: BMW '95 840
Check for vacuum leaks too.
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  #6  
Old 01-26-2010, 10:45 AM
vinnysrt8 vinnysrt8 is offline
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Location: harrison ny
 
Join Date: Jul 2008
Posts: 41
Mein Auto: 2001 740il sport
it runs good now i reset the computer and it seems good.
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11 Second club
2007 JEEP SRT8
V-3 Vortech Supercharger, Borla S, 180 t-stat, diablo sport predator,
Eibach lowering springs, shorty antenna, crossed drilled and slotted rotors, dash hawk,
20% tint,tinted tails, rammedic23 fiberglass hood.
2004 Kawasaki KFX 700
2002 Bat boat 28 ft 900 hp 105mph
2001 Bmw 740IL sport
1999 Bmw 740IL
1972 nova ss 454 big block
 

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