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Home › Chevrolet › 2003 › Tracker 2D Utility, RWD, Automatic › Repair and Diagnosis › Engine Mechanical › Engine Exhaust System › Repair Instructions › Front Pipe Replacement (2.5L) › Installation Procedure

Installation Procedure

IMPORTANT: When installing a new exhaust system component, always use new gaskets and seals.
  1. Position the front pipe with new exhaust manifold gaskets.
  2. Install the 6 front pipe nuts (1) to the exhaust manifolds (2). Do not fully tighten the nuts.
    Fig 1: Front Pipe & New Exhaust Manifold Gaskets
    G01471731Courtesy of GENERAL MOTORS CORP.
  3. Install the 2 bolts (1) to the front pipe assembly (2). Do not fully tighten the bolts.
  4. Install the propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT - FRONT .
  5. Align all system components before tightening the fasteners, in order to prevent noise or vibrations.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  6. Tighten the front pipe assembly bolts.

    Tighten 

    Tighten the front pipe assembly bolts to 50 N.m (37 lb ft).

    Fig 2: Installing Bolts To Front Pipe Assembly
    G01471732Courtesy of GENERAL MOTORS CORP.
  7. Tighten the front pipe assembly nuts.

    Tighten 

    Tighten the front pipe assembly nuts to 50 N.m (37 lb ft).

  8. Lower the vehicle.
  9. Connect the Heated Oxygen Sensor (HO2S1) electrical connectors and attach the couplers to the coupler mounting bracket.
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