The water pump is bolted onto the engine on the 2004 Dodge Ram 1500 4.7-liter engine, but does not have a place for the radiator hoses. Instead, the upper hose, which is on the driver's side of the engine, goes directly to the intake manifold. The lower hose, which is on the passenger side of the engine, goes to the thermostat housing on the lower portion of the engine. You may have to change the hoses if they show signs of hardening, splitting or softening -- typically they should be replaced every four years.
Instructions
- 1
Slide the drain pan under the radiator petcock. Ensure that the engine is cold, then open the petcock and allow the coolant to drain. Remove the radiator cap to speed up the draining process. If the coolant is clean and less than five years old, and the drain pan is clean, you may reuse the coolant; otherwise, dispose of it in an appropriate manner.
2Loosen the hose clamps on the upper and lower hoses at the radiator, using the screwdriver. Pull the hoses off the radiator. Loosen the clamp on the lower hose at the thermostat housing. Pull the hose off the thermostat housing. Loosen the clamp on the upper hose at the intake manifold. Pull the hose off the intake manifold.
3Remove the hoses from the engine compartment. Slide the clamps off the hoses.
4Slide the clamps onto the new hoses. Push the hoses onto the radiator. Slide the clamps up to the connection point and tighten them firmly. Push the upper hose onto the intake manifold and the lower hose onto the thermostat housing. Slide their respective clamps up to the connection point and tighten them firmly.
5Close the radiator petcock. Fill the radiator with 50/50 coolant. Start the vehicle and check for leaks. Allow the engine to come to normal operating temperature. Top off the coolant, as necessary.
