LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Trouble Shooting - No Codes - 4.3L >> Symptoms >> Vehicle Surges Or CHUGGLES >> Symptom Definition

Symptom Definition

Engine power varies under steady throttle or cruise. Feels like vehicle speeds up and slows down even though accelerator pedal position remains constant.