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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1390 (Engine Exhaust System) >> Repair Instructions >> Exhaust Manifold Pipe Replacement (6.0L, and 8.1L Engines) >> Installation Procedure

Installation Procedure

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    Fig 1: View of Exhaust Manifold Pipe Seal
    GM344263Courtesy of GENERAL MOTORS CORP.
  1. Install a new exhaust manifold pipe seal to the exhaust manifold pipe.
  2. Install the exhaust manifold pipe.
  3. Apply lubricant to the exhaust pipe hanger bracket, in order to aid in installation.
  4. Slide the exhaust manifold pipe hanger into the exhaust pipe hanger bracket.
    5. Fig 2: Identifying Exhaust Manifold Pipe Nuts
    GM664826Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE .
  5. Install the exhaust manifold pipe nuts.

    Tighten:  Tighten the nuts to 50 N.m (39 lb ft).

    6. Fig 3: View Of O2 Sensor, Connector, Harness And Retainers
    GM664781Courtesy of GENERAL MOTORS CORP.
  6. If the exhaust manifold pipe was replaced perform the following:
    1. Apply anti-seize compound GM P/N 12377953 or equivalent to the threads of the old oxygen sensor.
    2. Install the old oxygen sensor.

      Tighten:  Tighten the oxygen sensor to 42 N.m (31 lb ft).

  7. If the exhaust manifold pipe was not replaced perform the following:
    1. Connect the oxygen sensor electrical connector.
    2. Connect the CPA retainer.
    3. Install the clip around the engine harness and the oxygen sensor pigtail.
  8. Install the exhaust muffler. Refer to Muffler Replacement (4.8L and 5.3L Engines)  or Muffler Replacement (6.0L and 8.1L Engines) .
    9. Fig 4: View of Transmission Support Crossmember
    GM788013Courtesy of GENERAL MOTORS CORP.
  9. Install the transmission support crossmember.
  10. Install the transmission support crossmember bolts.

    Tighten:  Tighten the transmission support crossmember bolts to 70 N.m (52 lb ft).

    11. Fig 5: Identifying Transmission Mount Nuts
    GM647997Courtesy of GENERAL MOTORS CORP.
  11. Lower the transmission onto the transmission support.
  12. Install the transmission mount to transmission support nuts.

    Tighten:  Tighten the transmission mount nuts to 40 N.m (30 lb ft).

  13. Remove the transmission jack.
    14. Fig 6: View of Oil Pan Skid Plate & Bolts
    GM339429Courtesy of GENERAL MOTORS CORP.
  14. Install the oil pan skid plate and bolts, if necessary.

    Tighten:  Tighten the bolts to 20 N.m (15 lb ft).

  15. Lower the vehicle.
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