SW Water Temp Guage inaccurate
As mentioned in another thread, my new engine is in and running great. I took it on it's first cruise yesterday, and the temp guage isn't accurate. (I verified temps with a laser thermometer pointed at the sending unit under the hood.)
Bad sender? Bad guage? The sending unit is brand new. Guage was on the car when I bought it?
Where to start?
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 1965 Pontiac LeMans. M21, 3.73 in a 12 bolt, Kauffman 461.
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