Lack Of Power Or Sluggish
If engine power is less than expected or little or no speed increase is noted when accelerator pedal is depressed, check the following:
- Verify the complaint.
- Check air filter for dirt or to see if plugged.
- Ensure ignition timing is correct.
- Ensure fuel pressure is correct and filter is not restricted.
- Check ECM ground contact on engine.
- Ensure EGR operation is correct.
- Ensure alternator output voltage is 9-16 volts.
- Check valve timing and compression.
- Check camshaft for excessive wear.
- Ensure torque converter clutch operation is okay.
- Ensure secondary ignition is okay.
- Ensure exhaust system is not restricted.