NOTE: Do not submerge the rocker lever housing in solvent with the injector harness and connectors installed.
Clean the rocker lever housing with solvent.
Dry with compressed air.
Inspect the rocker lever housing for cracks and other damage, especially on the cylinder head mounting surface.
Inspect the bridge area in the center of the rocker lever housing for cracks.
Inspect the injector wiring harness and connectors for damaged or exposed wires, bent or broken pins, or
damaged connectors.
Verify the wiring harness retaining clips are securing the harness to the rocker lever housing.
If a replacement is necessary. Refer to Procedure 019-063 in Section 19 of the Troubleshooting and Repair Manual
CM2150 Electronic Control System, ISB, ISC, ISL, ISLe, ISDe, and QSB3.3 Engines, Bulletin 4021570.
