How to Repair a Leaking Drain Valve on a Car Radiator
Replacing your radiator can be expensive when you pay for parts and labor. So if you have a leaking drain valve on your radiator, you need to replace it as soon as possible to avoid bigger problems. The type of car you own will determine whether you'll be able to repair a leaking drain valve. Most radiator drain valves screw in and out, and can be replaced fairly easily with little expert knowledge. It will certainly cost much less than replacing an entire radiator.
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Instructions
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Use the leaky drain valve to drain the fluid out of the radiator. Drain the fluid into a bucket; it will need to be disposed of properly.
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Unscrew the leaky drain valve.
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3
Take the leaky drain valve to an auto parts store and purchase a replacement. If you can't find a new drain valve at an auto parts store, you may have to go to a wrecking yard to find a used one.
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Screw the new drain valve in and replace the radiator fluid.
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Tips & Warnings
When you replace a radiator drain valve, it is also a good idea to test your radiator fluid to see if it is still good. You can buy a tester at an auto parts store. If your fluid is bad, drain it and replace. If the fluid is good, put it back in.
