Electro chemical Degradation Causes Cooling System Failure
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...