LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1996 >> Forward Control 7.4 J >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/O Codes - Diesel >> Symptoms >> Engine Will Not Shut Off With Key
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Will Not Shut Off With Key

SYMPTOM - ENGINE WILL NOT SHUT OFF WITH KEY

Possible Cause Correction
Injection pump fuel shut-off solenoid does not return to off position Check solenoid operation; see SYSTEM/COMPONENT TESTS article