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Home >> GMC >> 2003 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust System >> Repair Instructions >> Floor Panel Heat Shield Replacement >> Installation Procedure

Installation Procedure

  1. If vehicle is a crew cab pick-up truck, install the exhaust heat shields to the studs.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  2. Install the exhaust heat shield nuts.

    Tighten 

    Tighten the exhaust heat shield nuts to 9 N.m (80 lb in).

    Fig 1: Installing Exhaust Heat Shield & Nuts (Crew Cab)
    G02133653Courtesy of GENERAL MOTORS CORP.
  3. If vehicle is a extended cab pick-up truck, install the exhaust heat shield (1, 2) to the studs.
  4. Install the exhaust heat shield nuts.

    Tighten 

    Tighten the exhaust heat shield nuts to 9 N.m (80 lb in).

    Fig 2: Installing Exhaust Heat Shield & Nuts (Extended Cab)
    G02133654Courtesy of GENERAL MOTORS CORP.
  5. If vehicle is a regular cab pick-up truck, install the exhaust front heat shield (1) and/or the exhaust heat shield (2) to the studs.
  6. Install the exhaust heat shield nuts.

    Tighten 

    Tighten the exhaust heat shield nuts to 9 N.m (80 lb in).

    Fig 3: Installing Exhaust Front Heat Shield, Exhaust Heat Shield & Nuts (Regular Cab)
    G02133655Courtesy of GENERAL MOTORS CORP.
  7. Install the exhaust front heat shield to the studs.
  8. Install the exhaust front heat shield nuts.

    Tighten 

    Tighten the exhaust heat shield nuts to 9 N.m (80 lb in).

  9. Install the catalytic converter, if necessary. Refer to Catalytic Converter Replacement (4.3L, 4.8L, and 5.3L Engines)  or Catalytic Converter Replacement (6.0L and 8.1L Engines) .
  10. Install the exhaust manifold pipe, if necessary. Refer to Exhaust Manifold Pipe Replacement (6.0, 6.6, and 8.1L Engines) .
    Fig 4: Installing Exhaust Front Heat Shield & Nuts
    G02133656Courtesy of GENERAL MOTORS CORP.
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