S10/T10 Blazer 4WD V6-262 4.3L (1989)
Heater Hose: Locations
Engine Heater Hose Assembly
HEATER HOSES ROUTING
Heater hoses are routed from the thermostat housing or inlet manifold and water pump (radiator on some automatic transmission vehicles) to the core
inlet and outlet pipes. Hoses are attached at each end with screw-type clamps. Refer to accompanying figures.