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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1496 (Engine Mechanical - 5.3L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Engine Flywheel Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Envoy XL and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The flywheel does not use a locating pin for alignment and will not initially seat against the crankshaft flange, but will be pulled onto the crankshaft by the engine flywheel bolts. This procedure requires a three stage tightening process.
  1. Install the engine flywheel to the crankshaft.
  2. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the threads of the flywheel bolts.
    Fig 1: Installing Engine Flywheel To Crankshaft
    G02129274Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  3. Install the engine flywheel bolts.

    Tighten 

    1. 3.1. Tighten the bolts a first pass in sequence to 20 N.m (15 lb ft).
    2. 3.2. Tighten the bolts a second pass in sequence to 50 N.m (37 lb ft).
    3. 3.3. Tighten the bolts a final pass in sequence to 100 N.m (74 lb ft).
  4. Install the transmission. Refer to AUTOMATIC TRANSMISSION - REMOVAL & INSTALLATION in Automatic Transmission - 4L60-E.
    Fig 2: Installing Engine Flywheel Bolts In Sequence
    G02129275Courtesy of GENERAL MOTORS CORP.
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