GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Astro - 4WD 🢒 Preface 🢒 Cautions and Notices 🢒 Engine Mount Replacement - Right Side

Removal Procedure

    Object Number: 367585 Size: SH

    Notice: Broken engine mountings can cause misalignment of certain drive-train components. Misalignment of drive-train components causes eventual destruction of the drive-train components.

    If one engine mount breaks, the rest of the engine mounts will have increased stress put on them. This could cause the rest of the engine mounts to break.

  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Remove the right front tire. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  4. Remove the right fender wheelhouse extension. Refer to Wheelhouse Extension Replacement in Body Front End.
  5. Remove the starter. Refer to Starter Motor Replacement in Engine Electrical.
  6. Remove the engine mount through-bolt and nut.

    7. Object Number: 374320 Size: SH

    Notice: When raising or supporting the engine for any reason, do not use a jack under the oil pan, any sheet metal, or the crankshaft pulley. Lifting the engine in an unapproved manner may cause component damage.

  7. Using a jack on the square tab (left side shown) at the rear of the engine block, raise the engine only enough to remove the engine mount.

    8. Object Number: 367577 Size: SH
  8. Remove the bolts for the engine mount bracket to the engine.

    9. Access the upper two bolts for the right engine mount bracket through the fender wheelhouse.

  9. Remove the engine mount bracket.

    10. Object Number: 552092 Size: SH
  10. For AWD vehicle remove the bolts for the engine mount to the frame (left side shown).
  11. Remove the engine mount.

    12. Object Number: 552087 Size: SH
  12. For a RWD vehicle right side remove the bolts and the nuts for the engine mount to the frame.

Installation Procedure

    Object Number: 552092 Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  1. Install the AWD vehicle engine mount to the frame bolts.

    2. Tighten
    Tighten the AWD vehicle engine mount to frame bolts to 59 N·m (44 lb ft).


    Object Number: 552087 Size: SH
  2. Install the RWD vehicle right side engine mount, the bolts, and the nuts to the frame.

    3. Tighten

        • Tighten the engine mount to frame bolts to 47 N·m (35 lb ft).
        • Tighten the engine mount to frame nuts to 42 N·m (31 lb ft).

    Object Number: 367577 Size: SH
  3. Install the engine mount bracket to the engine.
  4. Install the engine mount bracket bolts.

    5. Tighten
    Tighten the engine mount bracket bolts to 64 N·m (47 lb ft).


    Object Number: 367585 Size: SH
  5. Lower the engine.
  6. Install the engine mount through- bolt and the nut.

    7. Tighten
    Tighten the engine mount through-bolt nuts to 68 N·m (50 lb ft).

  7. Install the starter. Refer to Starter Motor Replacement in Engine Electrical.
  8. Install the right fender wheelhouse extension. Refer to Wheelhouse Extension Replacement in Body Front End.
  9. Install the right front tire. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  10. Lower the vehicle.
  11. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.