GM Service Manual Online
For 1990-2009 cars only

Object Number: 1903049  Size: MF

Callout

Component Name

Preliminary Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling.
  2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
  3. Use J 38185 to release the heater hose clamp.

1

Heater Inlet/Outlet Hose Clamp (Qty: 2) at Engine

2

Heater Inlet/Outlet Hose Bracket Bolt

Caution: Refer to Fastener Caution in the Preface section.

Tighten
12 Nm (9 lb ft)

3

Heater Inlet/Outlet Hose Quick Connect Fitting

4

Coolant Air Bleed Clamp

5

Coolant Air Bleed Hose

6

Heater Inlet/Outlet Hose