R 10 P/U 2WD V8-379 6.2L DSL (1988)
FIGURE 2
2.
Cut the front heater inlet and outlet hoses approximately eight inches from the cowl. See Figure 1.
It may be necessary to cut about one inch out of each hose to allow the water heater valve (3) to be inserted. The exact amount of hose will depend
on hose routing for different engine configurations and whether the vehicle has a rear heater water valve.
3.
Insert the front heater water valve (3) in the hoses and install the hose clamps (1). 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.
4.
Install the plastic vacuum line on the water valve fifting and add a 3/32 rubber sleeve for coupling. See Figure 1. Route vacuum line with the
blower harness to the grommet into the dash area. See Figure 2.
