Lack of Power/Sluggish/Spongy/Stumble

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

POSSIBLE CAUSE ACTION


Restricted exhaust Check Catalytic Converter. Refer to EMISSION CONTROL DEVICES/DIAGNOSIS, TESTING AND INSPECTION PROCEDURES/TESTING PROCEDURES/CATALYTIC CONVERTER.



Poor or contaminated fuel Recommend higher grade fuel



Throttle not opening fully Check floor mat for interference with accelerator pedal. Check throttle cable adjustment.



Other mechanical problems Check for overheated engine, slipping transmission or clutch, dragging brakes etc.