Silverado Classic 3500 4WD V8-6.6L DSL Turbo (2007)
9. Disconnect the intake air heater (IAH) electrical connector (1).
10. Disconnect the manifold absolute pressure (MAP) sensor electrical connector (2).
11. Remove the engine harness clip from the side of the air inlet tube.
12. Remove the left glow plug harness bracket bolts.
