GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2005 🢒 Grand Prix 🢒 Engine 🢒 Engine Mechanical - 5.3L 🢒 Engine Mount Strut Replacement

Removal Procedure

    Object Number: 1551861 Size: SH
  1. Remove the forward engine mount strut bolt (3) and nut (1).
  2. Remove the rear engine mount strut bolt (4) and nut (5).
  3. Remove the engine mount strut (2).
  4. Inspect the rubber in the engine mount strut for the following conditions:
    5. • Hardness
    • Splitting
    • Cracking

    Object Number: 1551863 Size: SH
  5. If necessary, remove the engine mount strut bracket bolts (body side).
  6. If necessary, remove the engine mount strut bracket (body side).

    7. Object Number: 1551860 Size: SH
  7. Remove the heater pipe bracket bolt from the engine mount.
  8. If necessary, remove the engine mount strut bracket bolts (engine side).
  9. If necessary, remove the engine mount strut bracket (engine side).

Installation Procedure

    Object Number: 1551860 Size: SH
  1. If necessary, position the engine mount strut bracket (engine side) to the cylinder head.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. If necessary, install the engine mount strut bracket bolts (engine side).

    3. Tighten
    Tighten the bolts to 48 N·m (35 lb ft).

  3. Install the heater pipe bracket bolt.

    4. Tighten
    Tighten the bolt to 16 N·m (12 lb ft).


    Object Number: 1551863 Size: SH
  4. If necessary, position the engine mount strut bracket (body side) to the vehicle.
  5. If necessary, install the engine mount strut bracket bolts (body side).

    6. Tighten
    Tighten the bolt to 48 N·m (35 lb ft).


    Object Number: 1551861 Size: SH
  6. Install the engine mount strut (2).
  7. Install the rear engine mount strut bolt (4) and nut (5).

    8. Tighten
    Tighten the bolt/nut to 48 N·m (35 lb ft).

  8. Install the forward engine mount strut bolt (3) and nut (1).

    9. Tighten
    Tighten the bolt/nut to 48 N·m (35 lb ft).