S10/T10 Blazer 4WD V6-262 4.3L (1989)
FIGURE 1
2.
Cut the front heater inlet and outlet hoses approximately 3.5 inches from the cowl. See Figure 1.
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It may be necessary to cut about one inch out of each hose to allow the water heater valve (4) to be inserted. The exact amount of hose will
depend on hose routing for different engine configurations.
3.
Insert the front heater water valve (4) in the hoses and install the hose clamps (2). Torque the clamps to 1.4 - 2.0 N-m (12 - 18 lbs. in.)
IMPORTANT:
If the wiring for the blower relay evidences any interference with the valve, add convoluted conduit to protect the wires and tie strap
the wires as necessary to avoid rubbing.