Here's a general outline of the process. Specific steps and difficulties may vary slightly depending on the year of your Concorde LXI. Always consult a repair manual specific to your vehicle's year and engine for precise instructions and torque specifications.
Tools You'll Likely Need:
* Repair Manual: Essential for specific instructions and torque specs.
* Socket Wrench Set: Various sizes, including likely a 10mm, 13mm, and possibly others.
* Wrench Set: Open-ended or combination wrenches.
* Pliers: Needle-nose and possibly slip-joint.
* Screwdrivers: Phillips and possibly flathead.
* New Thermostat: Make sure you get the correct one for your engine.
* New Thermostat Housing Gasket: This is crucial to prevent leaks.
* Drain Pan: To catch coolant.
* Jack and Jack Stands (or ramps): For safe working conditions.
* Gloves: To protect your hands.
* Coolant: The correct type for your vehicle.
* Funnel: For refilling the coolant.
* Rags or Shop Towels: For cleanup.
General Steps (Consult your repair manual for specifics):
1. Safety First: Allow the engine to cool completely before starting. The coolant will be hot and under pressure.
2. Drain the Coolant: Locate the coolant drain valve (usually on the radiator's lower hose). Place your drain pan underneath and carefully open the valve to drain the coolant.
3. Access the Thermostat: This usually involves removing some components to reach the thermostat housing. This might include:
* Removing the upper radiator hose.
* Removing the fan shroud (depending on the model).
* Removing air intake components.
* Removing some electrical connectors. Be careful and take notes on how everything is connected.
4. Remove the Thermostat Housing: This often involves loosening bolts or clamps holding the housing in place. Again, your repair manual will detail this.
5. Remove the Old Thermostat: Once the housing is removed, the thermostat should be visible. Carefully remove it, noting its orientation (some have a bleed hole or a specific marking).
6. Install the New Thermostat: Carefully install the new thermostat, ensuring it's correctly oriented.
7. Replace the Gasket: Install the new gasket on the thermostat housing.
8. Reassemble: Carefully reassemble everything in the reverse order of disassembly. Make sure all hoses are securely clamped and all electrical connections are properly made.
9. Refill the Cooling System: Carefully refill the cooling system with the correct type of coolant. Refer to your owner's manual for the correct coolant type and mixture ratio.
10. Bleed the Air: There will likely be air trapped in the system. Refer to your repair manual for the correct air bleeding procedure. This is critical to prevent overheating.
11. Test Run: Start the engine and let it run until it reaches operating temperature. Check for leaks and ensure the engine doesn't overheat.
Important Considerations:
* Year and Engine: The specific location and access to the thermostat will vary depending on the year and engine type of your Concorde LXI. A repair manual specific to your vehicle is absolutely necessary.
* Torque Specifications: Use a torque wrench to tighten bolts to the manufacturer's specified torque. Over-tightening can damage components.
* Coolant Type: Use the correct type and mixture of coolant as specified in your owner's manual.
This is a general guide. Always refer to a repair manual specific to your vehicle's year and engine for detailed instructions and diagrams. Improper installation can lead to serious engine damage. If you're not comfortable with this task, seek professional help.
