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coolant over flow  I just filled  coolant over flow area all the way up, Now what to do? Solution: Its ok that you filled it up. If the engine is low it will take some of the antifreeze out of the overflow as needed. You may see some on the ground because when the engine cools it can put it back into the overflow. You aren't going to damage anything by doing this. If it still concerns you, you can adjust the level by using a turkey baster to pull some of the extra out of the overflow. Coolant Temperature Sensor Operation: This sensor monitors the temperature of the engine and sends that information to the engine control computer to regulate the amount of fuel needed. More fuel is needed if the engine is cold; less if it's hot. If the temperature is extreme, the signal will be sent to the temperature gauge as a visual indicator of overheating and imminent danger. Inspect the sensor's wires and connections. ECT (engine coolant temperature) sensor ...

Cooling System Failure on  Chevy Vehicle  Q: Mechanic said  electrochemical degradation causing cooling system failure. It seems to be a hidden problem with some vehicles which causes radiator failure. I read a car-care article describing how to check for stray voltage using a DVM. So I took some measurements. I put the negative probe on the engine ground and positive in the coolant of the surge tank of my 2005 Chevy Equinox. I measured +200mVDC with the engine off and about +240mVDC with it running. The engine was only cool to warm when I did this cautiously. Is this too high of a voltage? Will this cause problems with my cooling system in the future? What can I do if it is a problem? A: First Off all i will say, Electrochemical degradation of the cooling system is a problem in today’s vehicles; this chemical reaction is called electrolysis. What is Electrolysis the details are a follows:--- Electrolysis involves an ion exchange between the coolant and th...

Accidentally poured windshield fluid in radiator Q: I accidentally pour windshield fluid into my radiator. Has it caused major damage? Do I need to take it to a mechanic right away? A: It's not a good thing to mix coolant with window washer fluid. You should also know that you are not the first and you will not be the last person to perform such a wondrous feat. My suggestion? Take your vehicle to your repair facility and have them drain and refill the cooling system, don't forget the coolant reservoir too. Just be thankful you didn't put anti-freeze in the windshield washer reservoir. That stuff really makes a mess of the windshield.