12 Valve Engine and Drivetrain Talk about the 12V engine and drivetrain here. This is for 1994-1998.5 engine and drivetrain discussion only.

engine breaking up at low rpm cold

Old Aug 27, 2005 | 10:40 PM
  #1  
TRCM's Avatar
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From: Newport News, VA
engine breaking up at low rpm cold

OK, the engine will break up in 2nd gear at around 2200 rpm until it is warmed up fully, then it doesn't break up until about 2900 rpm.

What could be causing this ??
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Old Aug 28, 2005 | 09:42 AM
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From: Montana
Cold engine?
Cummins says to keep it under 2000 rpm until the coolant temp needle starts to move.
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Old Aug 28, 2005 | 09:01 PM
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From: outside of Duluth MN
Retarded timing could also cause the same thing. Look at this chart: http://www.dieselpage.com/tchart.htm
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