B4000 4WD V6-4.0L OHV (1995)
Heater Core: Service and Repair
1. Remove the instrument panel.
2. Remove the evaporator core housing.
3. Drain the radiator.
4. Disconnect the heater hoses from the heater core.
5. Remove the plenum chamber.
6. Remove the screws and remove the heater core cover.
7. Remove the heater core.
8. Install in reverse order of removal.