Engine Cranks But Does Not Run

Component Tests and General DiagnosticsDESCRIPTION
The Engine Cranks but Does Not Run diagnostic table is an organized approach to identifying a condition that causes an engine not to start. The Engine Cranks but Does Not Run diagnostic table directs the service technician to the appropriate system diagnosis.

The Engine Cranks but Does Not Run diagnostic table assumes the following:
- The battery is completely charged. Refer to Battery Inspection/Test in Starting and Charging. Component Tests and General Diagnostics
- The cranking speed is acceptable. Refer to Engine Cranks Slowly in Starting and Charging. Symptom Related Diagnostic Procedures
- There is adequate fuel in the fuel tank.

TEST DESCRIPTION

Steps 1-4:

Steps 5-8:

Steps 9-11:

Steps 12-13:

The numbers below refer to the step numbers on the diagnostic table.
8. The crankshaft position (CKP) sensor can fail in such a way that will cause the engine to crank but will not run. The engine will be able to run by using the cam sensor when the CKP sensor is disconnected.