Thread: High RPM miss..
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Old 06-24-2003, 10:56 PM
Dan The AMG Man Dan The AMG Man is offline
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Join Date: Nov 2001
Posts: 21
High RPM miss..

Just started to notice at 4,000 to 6,000 rpm there are places the motor makes a hicup. At 4000 5000 and 6,000 almost at those marks on tach. I have new plugs but that is it.. 76,000 miles 1996 C 36. The things that have NOT been replaced are o2,MAS, coils, coil ends, wires. Got any clue what to look for? I have a Powerchip in ECU. KN filter. Of a side note.. to start the car is weird. Sometimes it fires right up.. then sometimes I have to turn it for 7 seconds plus.. when it fires it spits a small amount of black smoke that goes away after 1 or 2 seconds. When I have this long start problem the car has a cough to it and then slowly will idle.

Last edited by Dan The AMG Man; 06-24-2003 at 11:07 PM.
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