GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 Savana 🢒 Engine 🢒 Engine Controls - 7.4L 🢒 Coolant Recovery Reservoir Replacement

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

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

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

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


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