GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
2002
🢒
Eldorado
🢒
HVAC
🢒
Heating, Ventilation and Air Conditioning
🢒 Heater Inlet Pipe Replacement
Tools Required
J 38185
Hose Clamp Pliers
Removal Procedure
Drain the cooling system. Refer to
Cooling System Draining and Filling
.
Remove the vacuum control solenoid valve. Refer to
Secondary Air Injection Vacuum Control Solenoid Valve Replacement
in Engine Controls 4.6 L.
Disconnect the heater hoses from the heater inlet pipe (1) using the
J 38185
.
Remove the heater pipe clamp bolts (1).
Remove the heater pipe clamp bolt (4).
Disconnect the heater hose (3) from the heater inlet pipe.
Remove the heater hose.
Installation Procedure
Install the heater pipe (1) into position.
Connect the heater hoses to the heater inlet pipe using the
J 38185
.
Install the bracket bolts (1).
Install the bracket and bolt (4).
Connect the heater hoses.
Install the vacuum control solenoid valve. Refer to
Secondary Air Injection Vacuum Control Solenoid Valve Replacement
in Engine Controls 4.6 L.
Fill the cooling system. Refer to
Cooling System Draining and Filling
in Engine Cooling.