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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1072 (Engine Mechanical - 6.6L (2 Of 5)) >> On-Vehicle Repair Instructions >> Engine Mount Replacement - Left Side >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Engine Mount Frame Bracket Through Bolt
    GM1602047Courtesy of GENERAL MOTORS CORP.
  1. Position the engine mount frame bracket on the frame. Do not install the bolts.
    2. Fig 2: Identifying Engine Mount Bolts
    GM1602046Courtesy of GENERAL MOTORS CORP.
  2. Install the engine mount.
  3. Perform the following procedure prior to installing the engine mount bracket bolts.
    1. Remove all traces of the original adhesive patch.
    2. Clean the threads of the bolt with denatured alcohol or equivalent and allow to dry.
    3. Apply threadlocker GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the bolts.
    4. NOTE: Refer to Fastener Notice .
  4. Install the 2 through-bolts.

    Tighten:  Tighten the through-bolts to 75 N.m (55 lb ft).

  5. Install the bolts holding the engine mount to the engine.

    Tighten:  Tighten the engine mount bolts to 58 N.m (43 lb ft).

  6. Lower the engine.
  7. If 4WD vehicle remove the chain from the front of the engine.
  8. If 4WD vehicle, install the generator mounting bracket and the power steering mount bracket bolt.

    Tighten:  Tighten the mounting bracket bolts to 50 N.m (37 lb ft).

    9. Fig 3: View Of Engine Mount To Engine Mount Frame Bracket
    GM657625Courtesy of GENERAL MOTORS CORP.
  9. Install the 3 bolts holding the engine mount to the engine mount frame bracket.

    Tighten:  Tighten the engine mount to engine mount frame bracket bolts to 65 N.m (48 lb ft).

    10. Fig 4: Identifying Engine Shield And Retaining Bolts
    GM310119Courtesy of GENERAL MOTORS CORP.
  10. Install the engine protection shield and bolts.

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

    11. Fig 5: Identifying Oil Pan Skid Plate
    GM309158Courtesy of GENERAL MOTORS CORP.
  11. Install the oil pan skid plate.

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

  12. Remove the wheelhouse inner panel. Refer to Front Wheelhouse Liner Replacement - Left Side (Chevrolet) or Front Wheelhouse Liner Replacement - Left Side (GMC) .
  13. Lower the vehicle.
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