Part Description: 2008 Chevrolet Trailblazer Powertrain Control Module Assembly
More Info
Vehicle Fitment
2008 Chevrolet Trailblazer | Base, LS, LT, LTZ, North Face, SS | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
FAQ for Engine Control Module Repair
Q: What is the recommended torque for the ECM/TCM bracket bolts?
A:
The recommended torque is 10 N.m (89 LB IN).
By Bob
GM Specialist
01/11/2022
Q: What should be noted when servicing the Engine Control Module?
A:
You should be careful not to touch the connector pins or soldered components on the circuit board to prevent possible electrostatic discharge (ESD) damage to the Powertrain Control Module (PCM).
By Bob
GM Specialist
01/11/2022
Q: How to install the Engine Control Module?
A:
First, you should install the ECM/TCM bracket and the TCM. In addition, you should connect the engine wiring harness electrical connectors, the cooling fan electrical connector, and the negative battery cable.
By Bob
GM Specialist
01/11/2022
Q: What should be noted during the replacement of the Engine Control Module?
A:
You should record the remaining engine oil life. If the replacement module is not programmed with the remaining engine oil life, the engine oil life will default to 100 percent.
By Bob
GM Specialist
01/11/2022
FAQ for Other Repair Info
Q: How to remove the Ignition Coil?
A:
First, you should remove the spark plug wire and disconnect the Ignition Coil electrical connector. Next, the ignition coil should be removed.
Q: How to remove the Knock Sensor (Left Side)?
A:
First, you should disconnect the electrical connector of the Knock Sensor. Next, you should remove the mounting bolt and the knock sensor.
Q: How to remove the Ignition Lock Cylinder?
A:
You should disconnect the negative battery cable, disable the SIR system, remove the steering column trim covers, and then slide the lock cylinder out of the lock cylinder housing.