B2500 SX Regular Cab 2WD L4-2.5L VIN C (1999)
Heater Hose: Service and Repair
1. Drain the radiator.
2. Remove the air cleaner outlet tube.
3. Remove the heater hoses from between the heater core and the water control valve.
4. Remove the heater hose from between the water control valve and the water pump.
5. Remove the heater hose from between the water control valve and the water outlet.
6. Install in reverse order of removal. (1). Lubricate all hoses and fittings.