Engine Cranks But Does Not Run

Circuit Description
This table verifies that all basic engine systems are operating properly. This includes battery condition, engine cranking speed, glow plugs, and the fuel delivery system.

Diagnostic Aids
If no trouble is found and the cause of an Engine Cranks But Does Not Run has not been found, check for:
^ Proper cranking speed, 100 Rpms cold - 180 Rpms hot (a scan tool can be used to check cranking speed by pulling the ENG 1 fuse and monitoring Engine Speed on scan tool while cranking).
^ Water or foreign material in the fuel system.
^ Basic engine problem.

If the crankshaft position sensor and the optical/fuel temperature are disconnected or malfunctioning at the same time, an Engine Cranks But Does Not Run condition will exist.

Test Description
The number(s) below refer to the step number(s) on the Diagnostic Table.
6. This step checks for proper cranking speed (see Diagnostic Aids).
8. This step will check the ground wire on the injection pump (wire located on top of pump).
12. This step will determine if the injection pump or wiring is at fault.