GM Service Manual Online
For 1990-2009 cars only

Heater Pipes Replacement LY7


Object Number: 1537805  Size: MF

Callout

Component Name

Preliminary Procedures

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Remove heater hoses from heater pipe assembly. Refer to Heater Inlet Hose Replacement and Heater Outlet Hose Replacement .
  3. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .

1

Heater Inlet Hose

Tip

    • Use J 38185 Hose Clamp Pliers to release the clamp on the heater hose.
    • Only remove hose from heater pipe.

2

Heater Outlet Hose

Tip

    • Use J 38185 Hose Clamp Pliers to release the clamp on the heater hose.
    • Only remove hose from heater pipe.

3

Heater Pipe Assembly Bolt (Qty: 2)

Notice: Refer to Fastener Notice in the Preface section.

Tighten
16 N·m (12 lb ft)

4

Heater Assembly Pipe

5

Heater Pipe Assembly Gasket

6

Heater Pipe Assembly O-ring