GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Remove the PCM. Refer to Powertrain Control Module Replacement in Engine Controls - 4.3L.
  2. Important: Do not disconnect wiring harness to PCM.


    Object Number: 9972  Size: SH
  3. Using the J 38185 reposition the hose clamp.
  4. Remove the hose from the coolant recovery reservoir.

  5. Object Number: 3326  Size: SH
  6. Remove the coolant recovery reservoir retaining nuts.

  7. Object Number: 3327  Size: SH
  8. Remove the coolant recovery reservoir.
  9. Drain the coolant from the reservoir.

Installation Procedure


    Object Number: 3327  Size: SH
  1. Install the coolant recovery reservoir.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 3326  Size: SH
  3. Tighten the reservoir retaining nuts.
  4. Tighten
    Tighten the nuts to 8-11 N·m (6-8 lb ft).


    Object Number: 9972  Size: SH
  5. Install the hose to the coolant recovery reservoir.
  6. Using the J 38185 reposition the hose clamp.
  7. Install the PCM. Refer to Powertrain Control Module Replacement in Engine Controls - 4.3L.
  8. Add coolant to reservoir. Refer to Cooling System Draining and Filling .