Starter Motor: Service and Repair

Starter Replacement (6.6L)

Removal Procedure




Warning: Refer to Battery Disconnect Warning (Service Precautions).

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (Single Battery) (Service and Repair)Battery Negative Cable Disconnection and Connection (Dual Batteries) (Service and Repair)Battery Negative Cable Disconnection and Connection (Auxiliary Battery) (Service and Repair).
2. Remove the wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side (Chevrolet) (Front Wheelhouse Liner Replacement - Right Side)Front Wheelhouse Liner Replacement - Right Side (GMC) (Front Wheelhouse Liner Replacement - Right Side).
3. Working through the wheelhouse, remove the starter solenoid cable nut (6) from the starter.
4. Remove the starter solenoid cable (7) from the starter.




5. Working through the wheelhouse, remove the engine wiring harness lead nut (3).
6. Remove the engine wiring harness lead (2) from the starter motor.
7. Remove the exhaust manifold-to-catalytic converter pipe. Refer to Catalytic Converter Replacement (LY6 with Exhaust Flange) (Service and Repair)Catalytic Converter Replacement (L9H with Exhaust Flange) (Service and Repair)Catalytic Converter Replacement (Gen IV Engines with Exhaust Clamp) (Service and Repair)Catalytic Converter Replacement (LFA with Exhaust Clamp) (Service and Repair)Catalytic Converter Replacement (LMM) (Service and Repair).




8. From under the vehicle, remove the starter motor bolts (1).
9. Remove the starter motor.

Installation Procedure




1. Install the starter motor.

Caution: Refer to Fastener Caution (Fastener Caution).

2. Install the starter motor bolts (1).

Tighten the bolts to 85 Nm (63 lb ft).

3. Install the exhaust manifold-to-catalytic converter pipe. Refer to Catalytic Converter Replacement (LY6 with Exhaust Flange) (Service and Repair)Catalytic Converter Replacement (L9H with Exhaust Flange) (Service and Repair)Catalytic Converter Replacement (Gen IV Engines with Exhaust Clamp) (Service and Repair)Catalytic Converter Replacement (LFA with Exhaust Clamp) (Service and Repair)Catalytic Converter Replacement (LMM) (Service and Repair).




4. Install the engine wiring harness lead (2) to the starter motor.
5. Install the engine wiring harness lead nut (3).

Tighten the nut to 3.4 Nm (30 lb in).




6. Install the starter solenoid cable (7) to the starter.
7. Install the starter solenoid cable nut (6) to the starter.

Tighten the nut to 9 Nm (80 lb in).

8. Install the wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side (Chevrolet) (Front Wheelhouse Liner Replacement - Right Side)Front Wheelhouse Liner Replacement - Right Side (GMC) (Front Wheelhouse Liner Replacement - Right Side).
9. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (Single Battery) (Service and Repair)Battery Negative Cable Disconnection and Connection (Dual Batteries) (Service and Repair)Battery Negative Cable Disconnection and Connection (Auxiliary Battery) (Service and Repair).