Service Manuals
Service Manuals have the diagnosis
and repair information on the
engines, transmission, axle,
suspension, brakes, electrical,
steering, body, etc.
Service Bulletins
Service Bulletins give additional
technical service information
needed to knowledgeably service
General Motors cars and
Removal Procedure
Drain the cooling system. Refer to Cooling System Draining and Filling .
Remove the air cleaner assembly. Refer to Air Cleaner Assembly
Replacement .
Fig. 58: Rear Hose, Hose Retainer And Rear Hose Clamp
Using BO-38185 Hose Clamp Pliers , reposition the heater outlet rear