Express 1/2 Ton Van V6-4.3L VIN W (1999)
Section 3 Heater Pipe Sectioning
1. Raise and Support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Drain the engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
3. Disconnect the front left side, and the rear heater pipe connections.
Section 2 Heater Pipe Sectioning
4. Remove the heater pipe retainers from the vehicle body.
5. Using a tubing cutter, or an equivalent tool, cut the heater pipes into sections in order to remove the pipes from the vehicle.
INSTALLATION PROCEDURE