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  #1  
Old 11-11-2004, 12:54 AM
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99 e300dt loud idle, smokes at higher rpm

My e300 turbodiesel has developed a very loud idle. It also seems to smoke more than it used to at higher rpms. If I put the car in park and rev the motor to say 2000 rpm's (and hold it) the motor will begin to miss and smoke. It does not do this under a load. (Just possibly a puff of smoke.) The car seems to have great performance and no check engine light. I have also noticed when I decelerate the motor rpms will fluctuate about 6 times just before returning to an idle. (a rum-rum-rum-rum sound)


I repaired a fuel leak at the fuel cut off switch. I also have replaced all of the plastic fuel lines.

Any ideas?

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Old 11-11-2004, 09:01 AM
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That's a new one on me. Try posting in Tech Help, or email Gilly directly. He's the moderator of the ML and G-Wagen forum. When you find out the cause, please come back and let the rest of us know.
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  #3  
Old 11-11-2004, 02:36 PM
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Sounds like an injector missing.

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