Coolant temp sending unit/sensor mine was reading wacko changed the unit still wacko any more ideas. Please
2 Answers
It could be that the wrong voltage is feeding the gauge. It could be that the sending unit is seeing air and that is causing erratic readings.
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The gauge was working fine. All of a sudden it was reading cooler then normal then a little hotter then normal now the gauge is at 5oclock when its at normal running temp
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