Silverado 1500 4WD V8-6.0L Hybrid (2009)
6. Remove the connector position assurance (CPA) retainer (2).
7. Disconnect the engine harness electrical connector (1) from the ignition coil wire harness.
8. Remove the engine wiring harness (electronic throttle control branch) clip (6) from the ignition coil bracket stud.
9. Reposition the engine wiring harness (electronic throttle control branch) as necessary.
10. Remove the heater inlet hose (2) from the heater hose bracket (3).