- Safety glasses
- Pliers
- Screwdriver
- 5/8-inch socket wrench
- 10-inch socket extension
- 13mm socket wrench
- 15mm socket wrench
- 17mm socket wrench
- 19mm socket wrench
- 22mm socket wrench
- 24mm socket wrench
- 27mm socket wrench
- 30mm socket wrench
- Flat-blade screwdriver
- Phillips-head screwdriver
- T25 Torx bit
- T30 Torx bit
- RTV silicone gasket maker
- New thermostat housing
Instructions:
1. Disconnect the Negative Battery Cable:
- Locate the negative battery terminal, which is usually marked with a "negative" symbol (-).
- Use the 10mm socket wrench to loosen and remove the nut holding the negative battery terminal cable.
- Pull the negative battery terminal cable off the battery.
2. Remove the Air Intake Tube:
- Use the flat-blade screwdriver to loosen the hose clamps that attach the air intake tube to the throttle body and air filter housing.
- Pull the air intake tube off and set it aside.
3. Disconnect the Coolant Temperature Sensor:
- Locate the coolant temperature sensor on the thermostat housing.
- Use the 13mm socket wrench to loosen and remove the bolt that holds the sensor in place.
- Unplug the electrical connector from the coolant temperature sensor.
4. Drain the Coolant:
- Locate the drain plug on the radiator.
- Place a drain pan under the radiator.
- Use the 19mm socket wrench to loosen and remove the drain plug.
- Allow the coolant to drain completely.
5. Remove the Bolts Holding the Thermostat Housing:
- Use the 15mm socket wrench to loosen and remove the bolts that hold the thermostat housing in place.
6. Separate the Thermostat Housing from the Engine Block:
- Use the pry bar to carefully separate the thermostat housing from the engine block.
- Be careful not to spill any coolant that may be trapped inside.
7. Clean the Thermostat Housing and Cylinder Head:
- Use the wire brush and sandpaper to clean the thermostat housing and cylinder head mating surfaces.
- Remove any old gasket material or debris.
8. Apply RTV Silicone Gasket Maker to the Thermostat Housing:
- Apply a thin, even bead of RTV silicone gasket maker to the thermostat housing mating surface.
- Make sure to get good coverage on all sides.
9. Install the New Thermostat Housing:
- Place the new thermostat housing in position on the cylinder head.
- Hand-tighten the bolts that hold the thermostat housing in place.
10. Tighten the Thermostat Housing Bolts:
- Use the 15mm socket wrench to tighten the thermostat housing bolts in a crisscross pattern to 15 ft-lb (20 Nm) of torque.
11. Reconnect the Coolant Temperature Sensor:
- Plug the electrical connector back into the coolant temperature sensor.
- Use the 13mm socket wrench to tighten the bolt that holds the sensor in place.
12. Reinstall the Air Intake Tube:
- Push the air intake tube back into place.
- Use the flat-blade screwdriver to tighten the hose clamps that attach the air intake tube to the throttle body and air filter housing.
13. Refill the Coolant:
- Replace the drain plug on the radiator.
- Add coolant to the radiator until it reaches the "full" mark on the coolant reservoir.
14. Reconnect the Negative Battery Cable:
- Connect the negative battery terminal cable to the negative battery terminal.
- Use the 10mm socket wrench to tighten the nut that holds the cable in place.
15. Start the Engine and Check for Leaks:
- Start the engine and let it run for a few minutes.
- Check for any leaks around the thermostat housing. If you see any leaks, tighten the bolts until the leak stops.
