Tools You'll Likely Need:
* Repair Manual: Crucial for specific torque specifications, diagrams, and procedures.
* Jack and Jack Stands: Safely supporting the vehicle.
* Wheel Chocks: For added safety.
* Socket Set and Wrenches: Various sizes, including metric and possibly SAE.
* Ratchet and Extensions: To reach tight spots.
* Pliers (Needle-nose and slip-joint): For hose clamps and other small parts.
* Screwdrivers (Phillips and Flathead): Depending on the specific fasteners.
* Drain Pan: To catch coolant.
* New Water Pump: Make sure it's the correct part for your engine.
* New Thermostat (Recommended): While not strictly required, it's a good idea to replace it while you're in there.
* New Gasket(s): For the water pump and possibly other components.
* Coolant: The correct type and amount for your vehicle.
* Gloves and Safety Glasses: Protect yourself.
General Steps (Consult your repair manual for precise details):
1. Drain the Coolant: Locate the drain plug at the bottom of the radiator and the engine block. Open them carefully and let the coolant drain completely into your drain pan.
2. Remove the Serpentine Belt: Route the belt and loosen the tensioner to remove the belt. You might need a special tool or method depending on your vehicle.
3. Remove the Fan and Fan Shroud (if applicable): These may need to be removed to access the water pump. This often involves removing bolts and possibly disconnecting electrical connectors.
4. Remove the Water Pump Pulley: This might be held on by bolts or a special nut.
5. Disconnect the Water Pump: Remove the bolts holding the water pump to the engine block. This can be tricky due to limited space.
6. Remove the Old Water Pump: Once the bolts are out, carefully remove the old water pump. Take note of the gasket and its condition.
7. Clean the Mounting Surface: Thoroughly clean the engine block surface where the water pump mounts. Ensure it's free of any old gasket material.
8. Install the New Water Pump: Apply a thin, even layer of gasket sealant (if required by the new pump instructions) to the new gasket. Install the new water pump, ensuring it's seated correctly. Tighten the bolts to the specified torque as per your repair manual.
9. Reinstall Components: Carefully re-install the pulley, fan shroud, fan, and serpentine belt. Make sure the belt routing is correct.
10. Refill the Cooling System: Add the correct type and amount of coolant to the radiator and overflow tank. Carefully bleed the air from the system according to your repair manual's instructions. This is crucial to prevent overheating.
11. Test: Run the engine and monitor the temperature gauge for leaks and proper operation.
Important Considerations:
* Torque Specifications: Using the correct torque is essential to prevent damage. Always refer to your repair manual.
* Coolant Type: Use the correct type of coolant specified for your vehicle. Mixing different types can cause problems.
* Bleeding the System: Improper bleeding can lead to overheating. Follow your repair manual's instructions carefully.
This is a general overview; the specific procedure will vary depending on your vehicle's exact configuration. Always consult a repair manual specific to your 1997 Chrysler 3.5L engine before attempting this repair. If you're not comfortable with this type of repair, take it to a qualified mechanic. Improper repair can lead to serious engine damage.
