F 350 2WD Pickup V8-460 7.5L VIN G EFI (1997)
Heater Core: Service and Repair
Removal and Installation
Heating and Defrosting
REMOVAL
1. Allow the engine to cool. Observing ALL safety precautions, proceed as follows.
2. Place a thick cloth over the radiator cap.
3. Turn the cap slowly to its first stop to release system pressure.
4. When the pressure has been released, tighten the radiator cap.
5. Disconnect the heater water hoses from the heater core, and plug the heater water hoses.
6. For easier access, remove the glove compartment.
7. From inside the passenger compartment, remove the seven screws that attach the heater core cover to the heater air plenum chamber. It will be
necessary to move the RABS module out of the way prior to removing the cover.
8. Disconnect the vacuum source. Leave the vacuum hose harness attached to the cover. Remove the cover.
9. Remove the heater core from the heater air plenum chamber.
INSTALLATION
1. Position the heater core and seal in the plenum heater air plenum chamber.
2. Install the heater core cover on the heater air plenum chamber and secure it with its seven retaining screws. Be certain that the vacuum hose
harness is not trapped or pinched during the cover installation. Reinstall RABS module.
3. Connect the vacuum hose harness to its source connection.
4. Install heater water hoses on the heater core at dash panel in engine compartment. Do not overtighten the clamps.
5. Check coolant level and add coolant as required.
6. Check system for proper operation and coolant leaks.
With Manual A/C-Heater
REMOVAL
1. Allow the engine to cool.
2. Place a thick cloth over the radiator cap. Turn the cap slowly to its first stop to release system pressure. When the pressure has been released,
tighten the radiator cap.
3. Disconnect the heater water hoses from the heater core. Plug the hoses.
4. Remove the glove compartment.
5. From inside the passenger compartment, remove the seven screws retaining the heater core cover to the heater air plenum chamber.
6. Disconnect the vacuum source. Leave the A/C plenum vacuum harness attached to the heater core cover. Remove the heater core cover.