Greetings and Salutations;

The other day while poking around in the crewcab's engine compartment I
recalled this thread and decided to try and measure any "electrolysis"
action taking place. I unplugged the electrical connection to the coolant
level sensor and measured 175millivolts between one of the sensors
contacts and chassis ground. This is with the engine hot but turned off.
As I see it that contact is connected to a stainless steel probe immersed
in coolant. Also the voltage dropped as the engine cooled. I was puzzled
that the voltage was only present on one of the probes, the other read
zero.
Drive Safely & Good Luck
Ken Lewis<Kernersville,NC>86 VW crewcab;60 T-5 Coupe

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