Tools you'll likely need:
* Socket wrench set: Various sizes, including likely a 10mm, 13mm, and possibly others.
* Wrench set: Possibly needed for stubborn bolts.
* Phillips head screwdriver: May be needed for some access panels.
* New thermostat: Make sure to get the correct one for your Concorde's engine.
* New thermostat gasket: These are usually sold separately.
* Drain pan: To catch coolant.
* Coolant: Use the correct type and amount specified in your owner's manual.
* Gloves: Protect your hands.
* Jack and jack stands: Essential for safe working conditions.
* Shop rags or paper towels: For cleaning.
* Funnel: For refilling coolant.
* Pry tool (optional): To help with stubborn hoses.
General Steps (This is a simplified overview. Consult your repair manual for specifics!):
1. Safety First: Disconnect the negative battery cable. This prevents electrical shorts. Let the engine cool completely before starting.
2. Drain the Coolant: Locate the coolant drain petcock (usually on the radiator's lower hose). Place your drain pan underneath and carefully open the petcock to drain the coolant.
3. Access the Thermostat Housing: This is usually located on the engine block, near the water pump. You'll likely need to remove some components to get good access. This could involve removing hoses, electrical connectors, or other parts. Your repair manual is crucial here.
4. Remove the Thermostat Housing: Once you have good access, carefully remove the bolts holding the thermostat housing in place. Be prepared for some coolant leakage, even if you drained most of it.
5. Replace the Thermostat and Gasket: Carefully remove the old thermostat and its gasket. Clean the housing thoroughly. Install the new gasket (if applicable) and then the new thermostat, ensuring it's seated correctly.
6. Reinstall the Thermostat Housing: Carefully reinstall the thermostat housing and its bolts, tightening them to the manufacturer's specifications (check your repair manual).
7. Reconnect Hoses and Components: Reattach any hoses, electrical connectors, or other parts you removed earlier.
8. Refill the Coolant System: Carefully refill the coolant system with the correct type and amount of coolant, checking your owner's manual for the proper mix of coolant and water. Bleed the air from the system by opening the radiator cap and squeezing hoses to release trapped air.
9. Start the Engine: Start the engine and let it run until it reaches operating temperature. Monitor the temperature gauge and check for any leaks.
10. Top Off Coolant (if needed): Once the engine has cooled, check the coolant level and top it off if necessary.
Important Considerations:
* Repair Manual: A repair manual specific to your 1997 Chrysler Concorde is absolutely essential. It will provide detailed instructions, diagrams, torque specifications, and other critical information.
* Engine Type: The procedure will vary slightly depending on whether you have a 3.2L or 3.5L V6 engine.
* Safety: Working on your car can be dangerous. Always use proper safety precautions, including jack stands, and never work under a car supported only by a jack.
This is a general guide; the specific steps may differ significantly depending on your car's specifics. If you are not comfortable with this task, please take your car to a qualified mechanic. Improperly replacing a thermostat can lead to engine overheating and serious damage.
