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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1054 (Engine Exhaust System) >> Repair Instructions >> Turbocharger Exhaust Pipe Replacement (6.6L (LLY) Engine) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the exhaust outlet pipe.
    Fig 1: Exhaust Outlet Pipe (6.6L (LLY) Engine)
    GM1341232Courtesy of GENERAL MOTORS CORP.
    2. Fig 2: Exhaust Outlet Pipe Clamp (6.6L (LLY) Engine)
    GM1334826Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Tighten the exhaust outlet pipe clamp.

    Tighten:  Tighten the clamp to 15 N.m (11 lb ft).

    3. Fig 3: Exhaust Outlet Heat Shield (6.6L (LLY) Engine)
    GM1334821Courtesy of GENERAL MOTORS CORP.
  3. Install the exhaust outlet to right exhaust pipe bracket bolt.

    Tighten:  Tighten the bolt to 34 N.m (25 lb ft).

  4. Install the exhaust outlet heat shield.
  5. Install the exhaust outlet heat shield bolts.

    Tighten:  Tighten the bolts to 8 N.m (71 lb in).

    6. Fig 4: Turbocharger Upper Heat Shield (6.6L (LLY) Engine)
    GM1335576Courtesy of GENERAL MOTORS CORP.
  6. Install the turbocharger upper heat shield.
  7. Install the turbocharger upper heat shield bolts.

    Tighten:  Tighten the bolts to 9 N.m (80 lb in).

  8. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement in Engine Mechanical - 6.6L (LLY).
    9. Fig 5: Identifying Hood Hinge Normal And Service Position Bolt Holes
    GM310799Courtesy of GENERAL MOTORS CORP.
  9. Remove the hood hinge bolts (1) from the service position (2) and position the hood in the normal position.

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

  10. Raise the vehicle.
    11. Fig 6: View Of Fill Tube To Bellhousing Nuts
    GM702776Courtesy of GENERAL MOTORS CORP.
  11. If equipped with an automatic transmission, position the transmission fluid fill tube to the studs.
  12. Install the transmission fluid fill tube to bellhousing nuts.

    Tighten:  Tighten the nuts to 18 N.m (13 lb ft).

    13. Fig 7: Exhaust Manifold Pipe Hanger And Insulator (6.0L, 6.6L, and 8.1L Engines)
    GM694896Courtesy of GENERAL MOTORS CORP.
  13. Install the exhaust manifold pipe.
  14. Slide the exhaust manifold pipe hanger into the insulator.
    15. Fig 8: Exhaust Muffler Nuts (6.0L, 6.6L, and 8.1L Engines)
    GM694338Courtesy of GENERAL MOTORS CORP.
  15. Install the exhaust muffler nuts until snug.
    16. Fig 9: View Of Turbocharger Exhaust Pipe & Clamp
    GM668379Courtesy of GENERAL MOTORS CORP.
  16. Slide the exhaust pipe clamp down onto the exhaust pipe.
  17. Tighten the exhaust manifold pipe clamp.

    Tighten:  Tighten the clamp and nuts to 40 N.m (30 lb ft).

  18. Lower the vehicle.
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