Express 1/2 Ton Van V8-5.7L VIN R (1999)
4. Disconnect the heater hose connections from the front inlet and outlet pipe.
5. Disconnect the heater hose connections from the rear heater pipes.
6. Remove the retainers from the vehicle body.
7. Remove the intermediate heater pipe from
INSTALLATION PROCEDURE
1. Connect the intermediate heater pipe to the vehicle.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the retainers to the vehicle body.
Tighten
Tighten the retainers to 5 N.m (44 lb in).
3. Connect the heater hose connections to the rear heater pipes.
4. Connect the heater hose connections to the front inlet and outlet pipe.
5. Install the heat shields to the vehicle.
6. Install the exhaust system as necessary.
7. Fill the engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
Auxiliary Front
REMOVAL PROCEDURE
1. Drain the engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
2. Remove the exhaust system as necessary.
3. Remove the heat shields from the vehicle.
4. Disconnect the heater hose connections from the water by-pass valve.
5. Disconnect the heater hose connections from the intermediate pipe.
6. Remove the retainers from the vehicle body.
7. Remove the front inlet and outlet pipe from the vehicle.
INSTALLATION PROCEDURE
1. Install the front inlet and outlet pipe to the vehicle.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the retainers to the vehicle body.
Tighten
Tighten the retainers to 5 N.m (44 lb in).
3. Connect the heater hose connections at the intermediate pipe.
4. Connect the heater hose connections to the water by-pass valve.
5. Install the heat shields to the vehicle.
6. Install the exhaust system as necessary.
7. Fill the engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
