Lack of Power

Engine delivers less than expected power. Little or no increase in speed on slight acceleration.

POSSIBLE CAUSE ACTION

Hot air tube not connected
to air cleaner - air damper
door binding or not opening Check the intake air temperature system.



EGR malfunction 1. Check EGR system.
If OK, proceed to step 2
2. Check EGR electronic controls.


Spark timing - excessive retard Check Spark Controls (SC).


Initial timing incorrect Check Ignition Timing.



Restricted exhaust Check Catalytic Converter.



Poor or contaminated fuel Recommend higher grade fuel