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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1126 (Engine Exhaust System) >> Repair Instructions >> Exhaust Crossover Pipe Replacement (LA1) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (LA1) or Battery Negative Cable Disconnect/Connect Procedure (LY7) in Engine Electrical.
  2. Remove the throttle body air inlet duct.
  3. Drain the coolant from the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
  4. Remove the inlet radiator hose from the engine. Refer to Radiator Hose Replacement - Inlet (LA1) or Radiator Hose Replacement - Inlet (LY7) in Engine Cooling.
  5. Remove the thermostat bypass pipe. Refer to Thermostat Bypass Pipes Replacement in Engine Cooling.
    6. Fig 1: Locating Exhaust Crossover Heat Shield & Bolts
    GM54366Courtesy of GENERAL MOTORS CORP.
  6. Remove the exhaust crossover heat shield bolts.
  7. Remove the exhaust crossover heat shield.
    8. Fig 2: Identifying Exhaust Crossover Pipe Studs/Nuts
    GM54282Courtesy of GENERAL MOTORS CORP.
  8. Remove the exhaust crossover pipe studs/nuts.
  9. Remove the exhaust crossover pipe.
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