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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1028 (Engine Controls And Fuel - 6.6L - Introduction (2 Of 2)) >> Description and Operation >> Engine Idle Control System Description >> High Idle Switch

High Idle Switch

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The high idle switch will slowly increase engine RPM to the calibrated high idle speed when depressed. The high idle speed can be programmed by using a scan tool. Refer to High Idle Switch Programming . If the High Idle Switch is not operating as desired, refer to High Idle Switch Diagnosis .

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