There is a concern that the vehicle cranks but doesn't start.
This condition may be caused by a sheared camshaft sprocket locating pin.
During diagnosis, the technician will find proper fuel pressure, spark from each spark plug wire, and proper injector pulse. However, the following concerns will be noted during their diagnosis:
If this concern is encountered, refer to the Service Procedure below and perform the suggested steps as necessary.
1. Crank the engine while checking for movement in the valve train.
Note: This can be done by shining light down the oil fill tube on most models.
• If the valve train appears to be moving normally while the crankshaft is turning, continue to step 2.
• If you determine valve train is not moving while the crankshaft is turning, move ahead to step 4.
2. Disconnect the CMP sensor to see if the engine will start. If the engine starts, move ahead to step 4.
3. Perform the following SI diagnostic procedures as necessary:
3.1. Engine Cranks But Does Not Run diagnosis.
3.2. Engine Compression Test (document results).
3.3. Cylinder Leakage Test (document results).
⇒ If the SI procedures above isolate an engine mechanical concern (low compression; excessive cylinder leakage through the exhaust or intake, any type of valve train damage, etc.), continue to step 4.
Note: Before removing the front cover, verify the ECM calibrations in case engine replacement is necessary.
4. After completing steps 1, 2, or 3, remove the front cover to inspect for a sheared cam sprocket locator pin.
⇒ If the cam sprocket locator pin has sheared, engine replacement is required