Diesel Data: Automotive Repair

Lack of Power


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

POSSIBLE CAUSE ACTION

EGR malfunction Check the EGR system under
TESTING PROCEDURES.



Spark timing - excessive retard Check Spark Controls. Refer to
COMPUTERIZED ENGINE CONTROLS.



Initial timing incorrect Check Ignition Timing. Refer
to ADJUSTMENT PROCEDURES.



Restricted exhaust Check Catalytic Converter
under TESTING PROCEDURES.



Poor or contaminated fuel Recommend higher grade fuel.