Heater Inlet Hose Replacement (L83 L86)

Fig 1: Heater Inlet Hose (L83, L86)

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedures Drain the coolant. Refer to Cooling System Draining and Filling (Vac N Fill L83 L86)Cooling System Draining and Filling (Static Fill L83 L86) . Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (Chevrolet and GMC)Air Cleaner Outlet Duct Replacement (Cadillac) .
1	Heater Inlet Hose Clamp Procedure Reposition the heater inlet hose clamp using BO-38185 Hose Clamp Pliers. Special Tools BO-38185 Hose Clamp Pliers For equivalent regional tools, Refer to Special Tools .
2	Heater Inlet Hose Quick Disconnect Special Tools J-43181 Heater Line Q.C. Release Tool For equivalent regional tools, Refer to Special Tools .
3	Heater Inlet Hose Procedures Remove heater inlet hose from retainer. Fill the cooling system to the proper level. Inspect the cooing system for leaks.