Tools and Materials Needed:
- New thermostat (Compatible with 1997 Dodge Intrepid 3.5L)
- Coolant (Appropriate for your vehicle, check your owner's manual)
- Socket or ratchet set
- Flat-head screwdriver
- Pliers
- Safety goggles
- Funnel
- Clean rags or towels
1. Prepare the Car:
- Allow your engine to cool down. Working on a hot engine can be dangerous, so make sure the engine is completely cool before starting the repair.
2. Locate the Thermostat:
- Open the hood of your vehicle and locate the thermostat. In the 1997 Dodge Intrepid 3.5L, it is typically positioned on the front side of the engine near the upper radiator hose.
3. Drain the Coolant:
- Place a container under the radiator drain plug. It is usually a plastic or metal plug located at the bottom of the radiator.
- Open the drain plug carefully and allow the coolant to drain into the container. Be cautious as the drained coolant may be hot.
4. Remove the Thermostat Housing:
- Once most of the coolant has drained, locate the thermostat housing. There may be multiple bolts or screws securing it in place.
- Using a socket or ratchet set, loosen and remove these fasteners, being careful not to drop them.
- Gently lift and remove the thermostat housing. Be prepared for any remaining coolant to drain out.
5. Remove the Old Thermostat:
- Inside the housing, you will see the old thermostat. It may be secured with a bolt or bolts.
- Use a socket or ratchet to remove the bolts holding the thermostat in place.
- Once removed, inspect the old thermostat for signs of wear or damage.
6. Install the New Thermostat:
- Position the new thermostat correctly into the housing, ensuring that the orientation is correct. The new thermostat may have markings indicating the proper orientation.
- Replace the bolts or fasteners that hold the thermostat in place, tightening them securely.
7. Reinstall the Thermostat Housing:
- Carefully lift the thermostat housing back onto its mounting surface, aligning it correctly.
- Replace and tighten the bolts or screws that secure the housing.
8. Refill the Coolant:
- Use a funnel to pour new coolant into the reservoir or radiator.
- Gradually add coolant until the level reaches the "Full" or "Max" mark indicated on the coolant reservoir.
9. Check for Leaks:
- Start your vehicle and let it run for a few minutes, allowing the thermostat to open and circulate coolant through the system.
- Look for any signs of leaks around the thermostat housing and other connections. If you notice any leaks, tighten the connections as needed.
10. Test the Thermostat:
- With the engine running, observe the temperature gauge on your vehicle's dashboard. The temperature should gradually rise and then stabilize once the thermostat opens.
- If the gauge indicates overheating or the temperature doesn't reach its normal operating range, there may be an issue with the thermostat or other parts of the cooling system.
Remember, if you are not comfortable performing these steps or encounter any difficulties during the process, consult a qualified mechanic or refer to a specific repair manual for your vehicle model and year.
