GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Classic - 4WD 🢒 Hybrid 🢒 Hybrid Cooling 🢒 Generator Control Module Coolant Hose Replacement

Removal Procedure

    Object Number: 1206689 Size: SH
  1. Drain the generator control module (GCM) cooling system. Refer to Generator Control Module Cooling System Draining and Filling .
  2. Remove the GCM coolant hose (5) from the GCM radiator (2). Refer to Generator Control Module Coolant Pipe Quick Connect Fitting Replacement .
  3. Remove the GCM coolant hose (5) from the clip (4).

    4. Object Number: 1206695 Size: SH
  4. Remove the GCM coolant hose from the clip (3).

    5. Object Number: 1206682 Size: SH
  5. Remove the GCM coolant hose from the clip.
  6. Reposition the GCM coolant hose clamp (2) from the GCM (3).
  7. Remove the GCM coolant hose (1) from the GCM (3).
  8. Remove the GCM coolant hose (1) from the vehicle.

Installation Procedure

    Object Number: 1206682 Size: SH
  1. Install the GCM coolant hose (1) to the vehicle.
  2. Install the GCM coolant hose (1) to the GCM (3).
  3. Position the GCM coolant hose clamp (2) to the GCM (3).
  4. Install the GCM coolant hose to the clip.

    5. Object Number: 1206695 Size: SH
  5. Install the GCM coolant hose to the clip (3).

    6. Object Number: 1206689 Size: SH
  6. Install the GCM coolant hose (5) to the clip (4).
  7. Install the GCM coolant hose (5) to the GCM radiator (2). Refer to Generator Control Module Coolant Pipe Quick Connect Fitting Replacement .

    8. Notice: The procedure below must be followed. Improper coolant level could result in a low or high coolant level condition, causing starter/generator control module damage.

  8. Fill the GCM cooling system. Refer to Generator Control Module Cooling System Draining and Filling .