Available for over 30 years, the Grand Cherokee is a popular model offered by Jeep. Whatever the type of engine or year you may have, the process of replacing the thermostat on a Grand Cherokee remains the same. If you have overheating problems with your Jeep, here you’ll see how to change the thermostat.

You will need

• Container
• Adjustable tool clamp or pliers
• Thermostat and gasket
• 10mm socket or wrench
• Razor blade
• Flathead screwdriver (if needed)

Instructions

1. Open the valve on the radiator to drain the coolant in your Jeep Grand Cherokee. This is in the lower right to the back of your Cherokee. Use an airtight container and reused if the coolant is relatively new and clean.
2. Follow the upper radiator hose to the point where it meets the thermostat housing. The thermostat is located inside the housing. Use a tool or an adjustable clamp pliers to loosen the clamp that holds the hose to the housing. Works at the end of the radiator hose to release it from the thermostat housing.
3. Remove the two screws holding the top of the thermostat housing. Remove the cover. Notes the position of the old thermostat. Removes and installs the new thermostat in the same position.
4. Scrape residue thermostat seal the inside of the top of the thermostat housing using a razor blade. Prevents debris from falling into the thermostat housing.
5. Install new gasket. Replace the cover of the thermostat housing and radiator hose. Turn on your Jeep Cherokee and do operate the heater at full power. Let the engine warm up. Check for leaks.

Tips and Warnings

• In some models of the Jeep Grand Cherokee, the lower band can be on the road to access the lower bolt of the thermostat housing, if the entire housing must be removed. You’ll have to remove the lower band in this case. Use a flathead screwdriver to work at the end of the radiator hose and release it from the thermostat housing, if necessary.
• No drains fluid from your Grand Cherokee when the engine is hot. Let the engine cool before draining coolant.