How To Test Antifreeze Strength Correctly Youtube Make sure to check your antifreeze strength before the winter.in case it is not strong enough, it is possible that your engine may get damaged because of the. Test the coolant. set your multimeter to dc volts to less than (<) 20 volts. touch the black lead to the negative battery lead or the chassis ground, and place the red lead into the coolant. if the reading is less than .4 volts, the coolant is in good shape. anything over that indicates the anti corrosive properties of the antifreeze have.
How To Check Your Antifreeze Strength вђ Otosection 5. squeeze the bulb of your antifreeze testing tool. this will create a vacuum inside the tester that will suck coolant into the chamber, providing a sample of your vehicle’s coolant to test. 6. stop filling the tester when the amount of liquid fills up to the top of the temperature measurements on the tool. 7. If the test reads over .3 .4 volts, it means that the coolant is conducting too much electricity. either the coolant needs replacing or you have a grounding problem in the vehicle. if the coolant is fresh, check for poor ground connections between the engine and the firewall and the engine and the negative battery terminal. Learn how to test your antifreeze, and how to change your coolant to make sure it is protecting your car's engine and cooling system properly. in this video. Steps for how to use an antifreeze tester. draw coolant into the hydrometer from the coolant overflow tank. insert the hydrometer into the coolant overflow tank and draw coolant to measure it. tap the hydrometer if needed to get the dial moving. give the hydrometer a couple light taps if needed to get the dial moving.
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