gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Valve Rocker Arm Cover Replacement - Upper Left Side|Page 3996 > < Valve Rocker Arm Cover Replacement - Upper Left Side|Page 3994
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Notice: Label all the injector electrical connectors before the connectors are removed in order to prevent reconnecting to the wrong injector.
Failure to properly connect the injectors in the correct sequence will cause severe engine damage.

12. Disconnect the engine harness electrical connectors from the fuel injectors.

13. Remove the fuel injector return line clip (1) from the injector.
14. Remove the fuel injector return line fitting (2) from the injector.
15. Perform the above 2 steps for the other 3 fuel injectors.
16. Reposition the injector return line out of the way.
17. Disconnect the right side main engine harness connector.

Valve Rocker Arm Cover Replacement - Upper Left Side|Page 3996 > < Valve Rocker Arm Cover Replacement - Upper Left Side|Page 3994