RAM 1500 Truck 2WD V6-3.9L VIN X (1999)
Coolant Return Tube-5.9LHDC-Gas Engine
17. Loosen heater hose coolant return tube mounting bolt and remove tube from water pump.
Discard the old tube O-ring.
Water Pump Bolts-3.9L V-6 Or 5.2/5.9L V-8 Gas Engines-Typical
18. Remove the seven water pump mounting bolts.
19. Loosen the clamp at the water pump end of bypass hose. Slip the bypass hose from the water pump while removing pump from vehicle. Do not
remove the clamp from the bypass hose.
20. Discard old gasket.
CAUTION: Do not pry the water pump at timing chain case/cover. The machined surfaces may be damaged resulting in leaks.
INSTALLATION
1. Clean gasket mating surfaces.
2. Using a new gasket, install water pump to engine as follows: Guide water pump nipple into bypass hose as pump is being installed. Install water
pump bolts. Tighten water pump mounting bolts to 40 Nm (30 ft. lbs.) torque.
3. Position bypass hose clamp to bypass hose.
4. Spin water pump to be sure that pump impeller does not rub against timing chain case/cover.
5. Install a new O-ring to the heater hose coolant return tube. Coat the new O-ring with antifreeze before installation.
