Guest taksgf Posted July 29, 2013 Share Posted July 29, 2013 My water temp gauge reads nothing. What can I expect from the sensor to test it. Is it a voltage, a resistance reading, or what. Thanks for your help... Quote Link to comment Share on other sites More sharing options...
Mk4Gaz Posted July 29, 2013 Share Posted July 29, 2013 To rule the sender out, and make sure it's not a faulty gauge, unplug the wire off the sender, and touch it to a bare metal part of the engine with the ignition switched on. If the gauge doesn't move, it could be faulty. If the gauge shoots straight up into the red, then the sender is faulty Quote Link to comment Share on other sites More sharing options...
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