Lack of Power, Sluggish

Definition: Engine delivers less than expected power. Little or no increase in speed, when accelerator pedal is pushed down part way.

POSSIBLE CAUSE ACTION

Contaminated fuel - Check for water or excessive alcohol in fuel
- Drain fuel tank and add clean fuel

Lead contamination of catalytic converter - Check for missing fill pipe restrictor
- Replace catalytic converter

Low fuel pressure - Check fuel pressure, Pinpoint Tests

Pinched or collapsed fuel hose/line - Repair/replace as required

Throttle valve not fully opening - Check accelerator pedal travel (Floor mat/carpet interference)
- Check throttle cable adjustment

Air Induction - Check for restricted air filter element, IA3 - Air Cleaner Filter Element Diagnosis
- Check for collapsed air inlet and outlet tubes.
- Check air cleaner duct and valve door not operating properly, IA4 - Air Cleaner Duct and Valve System Diagnosis
- Check for inoperative bimetal sensor, IA2 - Air Cleaner Temperature (BI-Metal) Sensor Diagnosis
- Check for inoperative vacuum motor, IA1 - Air Cleaner Vacuum Motor Diagnosis