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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 809 (Engine Exhaust System) >> Repair Instructions >> Muffler Replacement (4.8L and 5.3L Engines) >> Removal Procedure

Removal Procedure

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  1. Remove the spare tire wheel stowage lock cylinder.
    2. Fig 1: Removing Spare Tire Wheel Stowage Lock Cylinder
    G02119458Courtesy of GENERAL MOTORS CORP.
  2. Remove the spare tire from the hoist.
  3. Remove the rear tires and wheels. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION in Tires and Wheels.
    4. Fig 2: Removing Rear Tires And Wheels
    G02119459Courtesy of GENERAL MOTORS CORP.
  4. If vehicle is equipped with regular production option (RPO) Z55, disconnect the following right side chassis harness electrical connectors:
    • Electronic suspension rear position sensor (1)
      • Fig 3: Removing Electronic Suspension Rear Position Sensor And Rear Shock
      G02119460Courtesy of GENERAL MOTORS CORP.
    • Rear shock (2)
  5. If vehicle is equipped with RPO Z55, disconnect the following left side chassis harness electrical connectors:
    • Electronic suspension rear position sensor (1)
      • Fig 4: Removing Electronic Suspension Rear Position Sensor And Rear Shock
      G02119461Courtesy of GENERAL MOTORS CORP.
    • Rear shock (2)

    Important:  Do not attempt to pry the rear suspension sensor link rod from the rear position sensor ball stud.

  6. Remove the left and right sensor link rods from the sensors, perform the following:
    1. 6.1. Support the sensor lever with your hand
    2. 6.2. Twist the link rod in order to remove it from the ball stud
  7. Install adjustable jack stands under the rear axle.
  8. Remove the rear axle vent hose from the rear axle, if necessary.
    9. Fig 5: Removing Rear Axle Vent Hose
    G02119462Courtesy of GENERAL MOTORS CORP.
  9. Remove the vent hose swivel clip from the rear brake crossover pipe.
  10. Remove the rear shock absorbers lower bolts and nuts.
    11. Fig 6: Removing Rear Shock Absorbers Lower Bolts And Nuts
    G02119463Courtesy of GENERAL MOTORS CORP.
  11. Lower the rear axle slightly, using the adjustable jack stands, in order to remove the muffler.
  12. Remove the exhaust muffler nuts.
    13. Fig 7: Removing Exhaust Muffler Nuts
    G02119464Courtesy of GENERAL MOTORS CORP.
  13. Remove the muffler from the insulators.
    14. Fig 8: Removing Muffler From Insulators
    G02119465Courtesy of GENERAL MOTORS CORP.
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