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Home >> Chevrolet >> 2003 >> Impala LS >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust System >> Repair Instructions >> Exhaust Crossover Pipe Replacement (3.4L) >> Installation Procedure

Installation Procedure

    Fig 1: Exhaust Crossover Pipe Nuts (3.4L)
    GM190525Courtesy of GENERAL MOTORS CORP.
  1. Install the exhaust crossover pipe.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the exhaust crossover pipe nuts.

    Tighten:  Tighten the nuts to 25 N.m (18 lb ft).

    3. Fig 2: Exhaust Crossover Pipe Heat Shield & Bolts (3.4L)
    GM190524Courtesy of GENERAL MOTORS CORP.
  3. Install the exhaust crossover heat shield.
  4. Install the exhaust crossover heat shield bolts.

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

  5. Install the thermostat by-pass pipe. Refer to Thermostat Bypass Pipes Replacement in Engine Cooling.
  6. Install the air cleaner intake duct.
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