The timing actuators are located on the engine in front of the ECM. There are two of them. The front timing actuator is located on the fuel delivery housing. It is the second actuator from the front of the engine.
The rear timing actuator is located on the fuel delivery housing. It is the second actuator from the rear of the engine.
Perform INSITE™ electronic service tool Cylinder Performance Test to determine if an actuator has failed. If a bank fails, this could indicate an actuator failure.
If only two injectors in a bank fail, repeat the test. Swap the front and rear fueling actuators to determine if the failed bank of cylinders follows the actuator. If so, replace the failed fueling actuator as necessary.
If not, swap the front and rear timing actuators to determine if the failed bank of cylinders follows the actuator. If so, replace the failed timing actuator as necessary.
NOTE: The front timing actuator is located on the fuel delivery housing. It is the second actuator from the front of the engine. The rear timing actuator is located on the fuel delivery housing. It is the second actuator from the rear of the engine. In the illustration, the front timing actuator is at the lower left and the rear timing actuator is at the upper right.
Clean the area around the timing actuator.
Disconnect the timing actuator connector from the engine harness.
Hello, I'm Jack, a diesel engine fan and a blogger. I write about how to fix and improve diesel engines, from cars to trucks to generators. I also review the newest models and innovations in the diesel market. If you are interested in learning more about diesel engines, check out my blog and leave your feedback.
View all posts by Jack