Coolant Line/Hose: Service and Repair

Removal Procedure

- Tools Required
- J 38185 Spring Hose Clamp Pliers





Caution: With a pressurized cooling system, the coolant temperature in the radiator can be considerably higher than the boiling point of the solution at atmospheric pressure. Removal of the surge tank cap, while the cooling system is hot and under high pressure, causes the solution to boll instantaneously with explosive force. This will cause the solution to spew out over the engine, the fenders, and the person removing the cap. Serious bodily injury may result.

Notice: When adding coolant, it is important that you use GM Goodwrench DEX-COOL(R) or HAVOLINE(R) DEX-COOL(R) coolant. If Coolant other than DEX-COOL(R) or HAVOLINE(R) DEX-COOL(R) is added to the system the engine coolant will require change sooner-at 50 000 km (30,000 mi) or 24 months.

1. Drain the cooling system. Refer to Draining and Filling Cooling System.
2. Remove the upper surge tank hose clamps.
3. Remove the upper surge tank hose.





4. Remove the lower surge tank hose clamps.
5. Remove the lower surge tank hose.

Installation Procedure





1. Install the lower surge tank hose.
2. Install the lower radiator tank hose clamps.





3. Install the upper surge tank hose.
4. Install the upper surge tank hose clamps.
5. Fill the cooling system. Refer to Draining and Filling Cooling System.