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Home >> Cadillac >> 2003 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 331 (Engine Controls - 8.1L (Introduction)) >> Repair Instructions >> Accelerator Pedal Position (APP) Sensor Replacement >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the accelerator pedal assembly.
    NOTE: Refer to the Fastener Notice in Cautions and Notices.
  2. Install the accelerator pedal nuts.

    Tighten:  Tighten the nuts to 20 N.m (15 lb ft).

    Fig 1: Accelerator Pedal Nuts
    GM871926Courtesy of GENERAL MOTORS CORP.
  3. Reposition the carpet.
    4. Fig 2: View Of Accelerator Pedal Position Sensor Electrical Connector
    GM858238Courtesy of GENERAL MOTORS CORP.
  4. Connect the APP sensor electrical connector.
  5. Install the CPA retainer.
  6. Reposition the carpet.
  7. Connect a scan tool in order to test for proper throttle-opening and throttle-closing range.
  8. 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).
  9. Verify that the vehicle meets the following conditions:
    • The vehicle is not in a reduced engine power mode.
    • The ignition is ON.
    • The ignition is OFF.
  10. Inspect the carpet fit under the accelerator pedal.
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