LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1996 >> Forward Control 4.3 W >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/O Codes - Diesel >> Symptoms >> Engine Will Not Start
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Will Not Start

SYMPTOM - ENGINE WILL NOT START

Possible Cause Correction
No voltage to fuel shut-off solenoid Check electrical connections
Restricted air filter Check and/or replace air filter
Faulty glow plugs, relay or PCM Check and/or replace glow plugs or controls
Plugged fuel return system Remove restrictions
No fuel to nozzles Inspect fuel delivery system
No fuel to injection pump Inspect fuel delivery system
Clogged fuel tank filter Replace filter; see SYSTEM/COMPONENT TESTS article
Incorrect or contaminated fuel Remove and replace fuel
Restriction in turbocharger inlet duct (if equipped) Remove restrictions
Incorrect pump timing See TESTS W/CODES article