B Series Truck 2WD L4-2184cc 2.2L 2200 2-bbl (1990)
Heater Core: Service and Repair
Fig. 1 Heater & A/C System Interior Components
1.
Disconnect battery ground cable, then drain engine coolant.
2.
Disconnect heater hoses from heater unit and remove grommet.
3.
Remove instrument panel, refer to Instrument Panel, Gauges and Warning Indicators/Instrument Panel/Service and Repair.
4.
Remove heater unit attaching nuts and bolts, then the heater unit, Fig. 1.
5.
Remove heater core from heater unit.
6.
Reverse procedure to install.
