GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Astro - 2WD 🢒 Engine 🢒 Engine Mechanical - 4.3L 🢒 Engine Mount Replacement

Removal Procedure

    Object Number: 367585 Size: SH

    Notice: Broken or deteriorated mounts can cause misalignment and destruction of certain drive train components. When a single mount breaks, the remaining mounts are subjected to abnormally high stresses.

  1. Disconnect the battery negative cable. Refer to Battery Replacement in Engine Electrical.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. In order to remove the right side engine mount perform the following:
    4. 3.1. Remove the right front tire. Refer to Tire and Wheel Removal and Installation in Tire and Wheels.
    3.2. Remove the right fender wheelhouse extension. Refer to Wheelhouse Extension Replacement in Body Front End.
    3.3. Remove the starter. Refer to Starter Motor Replacement in Engine Electrical.
  4. In order to remove the left side engine mount remove the oil filter adapter. Refer to Oil Filter Adapter Replacement .
  5. Remove the engine mount through-bolt and nut for the side being replaced.

    6. 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.

  6. 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.

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

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

  8. Remove the engine mount bracket.

    9. Object Number: 552092 Size: SH
  9. For 4WD vehicle remove the bolts for the engine mount to the frame (left side shown).
  10. Remove the engine mount.

    11. Object Number: 552087 Size: SH
  11. For a RWD vehicle left side remove the bolts and the nuts for the engine mount to the frame bracket (left side shown).
  12. For a RWD vehicle right side remove the bolts and the nuts for the engine mount to the frame.
  13. If necessary, remove the left side engine mount frame bracket from the frame.

Installation Procedure

    Object Number: 552092 Size: SH
  1. For 4WD vehicle install the engine mount to the frame (left side shown).

    2. 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.

  2. Install the 4WD vehicle engine mount to the frame bolts.

    3. Tighten
    Tighten the 4WD vehicle engine mount to frame bolts to 59 N·m (44 lb ft).


    Object Number: 552087 Size: SH
  3. If removed, install the RWD vehicle left side bolts, nuts and engine mount frame bracket to the frame.

    4. Tighten

        • Tighten the engine mount frame bracket bolts to 47 N·m (35 lb ft).
        • Tighten the engine mount frame bracket nuts to 42 N·m (31 lb ft).
  4. Install the RWD vehicle right side engine mount, the bolts, and the nuts to the frame.
  5. Install the RWD vehicle left side engine mount, the bolts, and the nuts to the frame bracket.

    6. 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
  6. Install the engine mount bracket to the engine.
  7. Install the engine mount bracket bolts.

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


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

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

  10. If replacing the left side engine mount, install the oil filter adapter. Refer to Oil Filter Adapter Replacement .
  11. If replacing the right side engine mount, install the following:
    12. 11.1. Install the starter. Refer to Starter Motor Replacement in Engine Electrical.
    11.2. Install the right fender wheelhouse extension. Refer to Wheelhouse Extension Replacement in Body Front End.
    11.3. Install the right front tire. Refer to Tire and Wheel Removal and Installation in Tire and Wheels.
  12. Lower the vehicle.
  13. Connect the batter negative cable. Refer to Battery Replacement in Engine Electrical.