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Engine temp sending unit backwards?
***EDIT*** I had my multimeter on the wrong setting so I uploaded new pictures and retyped the post to avoid confusion.
My sending unit is showing 128 ohms when the engine is 228 degrees. Davepl posted a good chart showing that at that temp I should be getting 65 or 70 ohms. What ohm rating are you getting when fully warmed up and if your sender is working well, where did you get it from?
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1971 C10 body. 76 4x4 chassis cut to short frame. Crate 350 2nd Gen small block. 4BBL Holley 4160. 4L60 transmission. ~ James
Last edited by K10-Kansas; 12-18-2025 at 04:02 PM.
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