Tools You'll Likely Need:
* Repair manual: Absolutely essential for torque specs and detailed steps.
* Socket set: Various sizes, including metric and possibly SAE.
* Wrench set: Combination and open-end wrenches.
* Screwdrivers: Phillips and flathead.
* Pliers: Needlenose and possibly slip-joint.
* Drain pan: To catch coolant.
* New water pump: Get a quality replacement.
* Coolant: The correct type for your vehicle.
* Jack and jack stands (highly recommended): For safer working conditions.
* Torque wrench: Crucial for tightening bolts to the correct specification.
General Steps (Consult your repair manual for specifics):
1. Safety First: Disconnect the negative battery cable. Allow the engine to cool completely before working.
2. Drain Coolant: Drain the coolant from the radiator and engine block.
3. Access the Water Pump: This often involves removing various components to gain access. This *could* include:
* Serpentine Belt: Remove the serpentine belt. You'll need to loosen the tensioner pulley to do this. Consult your manual for the specific procedure.
* Fan and Fan shroud: Often these need to come off for easier access.
* Other components: Depending on the specific engine layout, you might need to remove other things like pulleys, hoses, etc. Your repair manual will tell you what needs to be removed.
4. Remove Water Pump Bolts: Once you have access, carefully remove the bolts holding the water pump to the engine block. Keep track of their location and order for reassembly.
5. Remove the Water Pump: Once the bolts are removed, the water pump should come off relatively easily. However, it might be stubborn due to corrosion. Gently pry it loose if necessary, but be careful not to damage the engine block.
6. Clean the Mounting Surface: Clean the engine block mating surface thoroughly to ensure a good seal with the new water pump.
7. Install New Water Pump: Install the new water pump, ensuring the gasket is properly seated. Tighten the bolts to the specifications listed in your repair manual. Do not overtighten!
8. Reassemble: Reinstall all components removed in the earlier steps, ensuring everything is properly connected and seated. Reconnect the serpentine belt.
9. Refill Coolant: Refill the cooling system with the correct type and amount of coolant. Bleed the air from the system according to your repair manual's instructions. This is crucial to avoid overheating.
10. Test: Start the engine and check for leaks. Let the engine run for a while to allow the thermostat to open and ensure the coolant is circulating properly. Monitor the temperature gauge.
Important Considerations:
* Gasket: Replace the water pump gasket. Reusing the old gasket can lead to leaks.
* Thermostat: Consider replacing the thermostat while you're in there, as it's relatively inexpensive and easy to replace at the same time.
* Professional Help: If you're not comfortable with this level of car repair, it's best to take it to a qualified mechanic.
This is a simplified overview. Always consult your repair manual for the specific procedures and torque specifications for your 1996 Chrysler New Yorker 3.5L engine. Failing to do so could result in damage to your engine.
