Heater Core Issue

BARBARA1963

MEMBER
1996 DODGE CARAVAN

Got water in floor board. I know its the heater core.

Can you give me a diagram on how to replace the heater core and what all parts I need to remove and replace?

Saturday, February 25th, 2012 AT 9:32 PM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

HEATER CORE
Removal & Installation (Auxiliary Unit)
Remove lower right quarter trim panel. Pinch off heater hoses, and disconnect hoses from heater core. Remove heater core retaining screws. Carefully pull heater core straight up and out of unit. To install, reverse removal procedure. Fill heater core before installation. Test and check for leaks.
Removal & Installation (Main Unit)
Disconnect negative battery cable. Drain cooling system.
Remove left side lower column cover.
Remove steering column assembly. See STEERING COLUMN.
Remove ABS module, bracket and wiring.
Remove instrument panel-to-body harness interconnect and bracket.
Remove silencer boot at base of steering shaft.
Pinch off heater lines under hood.
Remove heater core cover. Place a few towels under heater core tubes. Remove heater core plate and tubes.
Depress heater core retaining clips. Pull up on accelerator pedal and slide heater core out past pedal. Depress brake pedal and remove heater core from HVAC housing.
To install, reverse removal procedure. Install screws to retain heater core in housing. Replace heater core tube inlet "O" rings. Tighten heater core tube retaining plate to 18-36 INCH lbs. (2-4 N.M).