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1986 Mercedes-Benz 420SEL 4.2L Poor Idle Quality
Posted to European Driveability on 7/6/2011 11 Replies

Need Mercedes help here.. Have been having major problems trying to get the idle under control. After repairing all vacuum leaks and later failed ignition problems I can not get this cal to idle properly.

I can lean out the mixture to bring it down to 800 rpm...

11 Replies Received (View Replies)

  Related Documents & Media  1986 Mercedes-Benz 420SEL

 
Message Closed w/FIX

car Vehicle Data

1986 Mercedes-Benz 420SEL

VIN WDBCA35D0G
Engine4.2 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection
SymptomsPoor Idle Quality
OccursAlways
Message Closed w/FIX

car Vehicle Data

1986 Mercedes-Benz 420SEL

VIN WDBCA35D0G
Engine4.2 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection
SymptomsPoor Idle Quality
OccursAlways