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