GM 19260088
Reservoir Tank

Before starting coolant reservoir replacement follow the guidance in Cooling System Draining and Filling (GE 47716). Then disconnect the coolant reservoir inlet hose from its valve after releasing the clamp tension. Use J 38185 Hose Clamp Pliers to release tension from the coolant reservoir outlet hose clamp before removing the outlet hose from the tank. First remove the protective cap on the coolant reservoir upper stud and slide off the upper nut before beginning to loosen the side nut. The service technician should disconnect the level sensor electrical connector and take the coolant reservoir from its mounting position. Begin coolant reservoir installation by using clean coolant to lubricate both hose interior diameters. Tighten the upper coolant reservoir nut to 8 Nm after installation (71 lb in) then secure the protective cap back on the upper stud. Insert the outlet hose into the coolant reservoir after restoring the coolant level sensor electrical connection then tighten the clamp. The inlet hose installation requires connection to the coolant reservoir while applying clamp tension to the inlet hose. Use Cooling System Draining and Filling (GE 47716) to complete your cooling system filling process.

To replace the coolant reservoir, first drain the cooling system using the Cooling System Draining and Filling (GE 47716). Next, disconnect the reservoir inlet hose from the reservoir using the Hose Clamp Pliers (J 38185) and remove tension on the reservoir inlet hose clamp. Afterwards, use Hose Clamp Pliers (J 38185) to further loosen the pinch on the reservoir outlet hose clamp and remove the reservoir outlet hose from the reservoir. Take off the protective cap from the reservoir upper stud; the reservoir upper nut, followed by the reservoir side nut; and loosen the reservoir side nut. The coolant level sensor, as well as the reservoir, should be disconnected by the electrical connection and removed. For installation: lubricate the I.D. hoses with clean coolant before the installation of the reservoir. Apply the upper reservoir nut and much up all nuts to 8 N.m (71 lb in). Replace protective cap on upper stud of reservoir, connect the coolant level sensor electrical connector, connect the reservoir outlet hose to the reservoir and install tension onto the reservoir outlet hose clamp. Finally tie in the reservoir inlet hose to the reservoir and apply tension to the reservoir inlet hose clamp and fill the cooling system with the help of Cooling System Draining and Filling (GE 47716).

Remove the protective cap on the surge tank upper stud and the upper nut, loosen the side nut, and disconnect the coolant level sensor electrical connector.

Tighten all nuts to 8 Nm (71 inch lbs.).

Disconnect the coolant level sensor electrical connector.