Engine Cranks, But Will Not Run

Definition
Engine cranks OK, but does not start. May fire a few times.

POSSIBLE CAUSE ACTION

No fuel in tank Install Fuel in fuel tank.



Water contaminated fuel Perform Alcohol/Contaminants-In-Fuel Testing Procedure
If fails test, drain fuel tank and add clean
fuel.



Low fuel pressure Check Fuel pressure. Testing and Inspection



Pinched or collapsed fuel hose/line Repair/Replace As required refer to
FUEL SUPPLY/ RETURN OR EMISSION PIPES/
COMPONENT REPLACEMENT AND REPAIR
in FUEL SUPPLY AND AIR INDUCTION.



Inoperative fuel pump Check - Fuse/fuse link integrity.
- Fuel pump relay. Testing and Inspection



Fuel drain back Check In-tank fuel pump check valve
Testing and Inspection



Vapor lock Check - Fuel line routing
(away from heated, exhaust areas).
- Check fuel grade.