Operation CHARM: Car repair manuals for everyone.

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, refer to FUEL SYSTEM DIAGNOSIS

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

Dirty air filter - Clean or replace