GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Sonoma Pickup - 2WD 🢒 Engine 🢒 Engine Electrical 🢒 Engine Mount Replacement - Left Side

Removal Procedure

    Object Number: 33772 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 negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Remove the left side transmission support brace bolts and the support brace.
  4. Remove the starter. Refer to Starter Motor Replacement in Engine Electrical.

    5. Object Number: 382111 Size: SH
  5. Remove the bolt holding the battery positive cable to the engine.
  6. Remove the battery positive cable from the engine mount.
  7. Lower the vehicle.

    8. Object Number: 382113 Size: SH
  8. Remove the bolt and the engine mount shield.

    9. Object Number: 2491 Size: SH
  9. Install a suitable engine lifting device to the eyelet on the accessory mounting bracket.
  10. Raise the engine only enough to remove the weight from the engine mount.
  11. Remove the engine mount through-bolt.

    12. Object Number: 1140 Size: SH
  12. Remove the bolts holding the engine mount to the engine and the starter support.
  13. Remove the engine mount.

Installation Procedure

    Object Number: 1140 Size: SH
  1. Install the engine mount.

    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 stud, two bolts, and the starter support.

    3. Tighten
    Tighten the engine mount stud and bolts to 55 N·m (41 lb ft).


    Object Number: 2491 Size: SH
  3. Install the engine mount through-bolt.

    4. Tighten
    Tighten the engine mount through-bolt to 45 N·m (33 lb ft).

  4. Remove the engine lifting device.

    5. Object Number: 382113 Size: SH
  5. Install the engine mount shield and the bolt.

    6. Tighten
    Tighten the shield bolt to 11 N·m (97 lb in).


    Object Number: 382111 Size: SH
  6. Raise the vehicle.
  7. Install the positive battery cable through the engine mount.
  8. Install the bolt holding the positive battery cable to the engine.

    9. Tighten
    Tighten the bolt to 35 N·m (26 lb ft).

  9. Install the starter. Refer to Starter Motor Replacement in Engine Electrical.

    10. Object Number: 33772 Size: SH
  10. Install the left side transmission support brace and bolts.

    11. Tighten
    Tighten the bolts to 50 N·m (37 lb ft).

  11. Lower the vehicle.
  12. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.