Engine Cranks But Does Not Run

ENGINE CRANKS BUT DOES NOT RUN

DESCRIPTION
The Engine Cranks but Does Not Run diagnostic table is an organized approach to identifying a condition that prevents an engine from starting. 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.
- The engine speed is acceptable.
- There is adequate fuel in the fuel tank.

TEST DESCRIPTION

Step 1:

Steps 2-6:

Steps 7-8:

Steps 9-11:

The numbers below refer to the step numbers on the diagnostic table.
3. The engine control module (ECM) ground is located on the mounting bracket the ECM attaches to. All ground connections should be tight and free of any corrosion. This step determines if the ECM is being grounded properly.
4. This step determines if the battery is being grounded properly. All ground connections should be tight and free of any corrosion.