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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 357 (Engine Controls And Fuel - Hybrid (LZ1) - Repair Instructions) >> Repair Instructions >> Accelerator Pedal Position Sensor Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Accelerator Pedal Position Sensor Assembly
    GM1704147Courtesy of GENERAL MOTORS CORP.
  1. Position the accelerator pedal to the accelerator pedal bracket.
    2. CAUTION:

    Refer to Fastener Caution .

  2. Install the accelerator pedal bolts.

    Tighten 

    Tighten the bolts to 9 N.m (80 lb in).

    3. Fig 2: APP Sensor Electrical Connector
    GM1704152Courtesy of GENERAL MOTORS CORP.
  3. Connect the APP sensor electrical connector (1).
  4. Connect a scan tool to the diagnostic port in order to test for proper throttle-opening and throttle-closing range.
  5. Operate the accelerator pedal and monitor the throttle angles. The accelerator pedal should operate freely, without binding, between a closed throttle, and a wide open throttle (WOT).
  6. Verify that the vehicle meets the following conditions:
    • The vehicle is not in a reduced engine power mode.
    • The ignition is ON.
    • The engine is OFF.
  7. Install the knee bolster. Refer to Knee Bolster Replacement (Except Cadillac) , Knee Bolster Replacement (Cadillac) .
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