How to Change a Radiator Valve

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Changing a radiator valve on your car can be hard and dirty work. However, if you follow these steps carefully, there should be no problems replacing the valve.

Steps

1. 1
   Take off the radiator cap and turn the drain valve that is at the bottom of the radiator with a wrench to drain the radiator.

   
   
2. 2
   Find the radiator hose and take it off with a flathead screwdriver.
3. 3
   Expose the thermostat by removing the bolts on both sides of the thermostat with a wrench.
4. 4
   Scrape the bottom of the thermostat housing and where the housing meets the surface with a gasket scraper.
5. 5
   Put on the new thermostat and then once in place, on both sides of the newly replaced thermostat gasket, put gasket sealer on. Put the housing over the thermostat and then tighten the bolts with a wrench.
6. 6
   Put the upper radiator hose on the housing of the thermostat and tighten the clamp with a screwdriver. Make sure to close the radiator's drain valve by turning it clockwise with a wrench and fill the radiator with antifreeze.
7. 7
   Put the radiator cap back on.

Tips

• Be careful and take your time.
• Refer to your car manual in case you need help determining what is what and where things are.

Warnings

• Make sure the engine is not hot.
• Make sure to do this BEFORE you drive and not after because then the engine will be too hot to work around.
• You might burn yourself so be careful

Things You'll Need

• Wrench
• Flathead screwdriver
• Scraper
• Thermostat housing gasket
• Gasket sealer
• AntifreezeArticle provided by wiki how the wikihow manual. Please edit this article and find author credits at the original wiki How article on How to Change a Radiator Valve All content on wikiHow can be shared under a Creative Commons license.