GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Partially drain the engine coolant. Refer to Cooling System Draining and Filling .

  2. Object Number: 71685  Size: SH
  3. Remove the coolant recovery reservoir hose clamp and the hose at the radiator overflow fitting.

  4. Object Number: 71686  Size: SH
  5. Remove the coolant recovery reservoir retaining bolt.
  6. Remove the coolant recovery reservoir from the cowl tabs.
  7. Remove the coolant recovery reservoir from the vehicle.
  8. Clean the coolant recovery reservoir with soap and water.
  9. Rinse the coolant recovery reservoir with clean water.

Installation Procedure

    Notice: When adding coolant, use DEX-COOL® coolant. If silicated coolant is added to the system, premature engine, heater core or radiator corrosion may result. In addition, the engine coolant will require change sooner-at 50 000 km (30,000 mi) or 24 months.


    Object Number: 71686  Size: SH
  1. Install the coolant recovery reservoir to the cowl tabs.
  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.

  3. Install the coolant recovery reservoir retaining bolt.
  4. Tighten
    Tighten the coolant recovery reservoir bolt to 11 N·m (97 lb in).


    Object Number: 71685  Size: SH
  5. Install the coolant recovery reservoir hose clamp and the hose at the radiator overflow fitting.
  6. Fill the coolant recovery reservoir with coolant to the proper level. Refer to Cooling System Draining and Filling .