mikeringland Posted March 23, 2021 Share Posted March 23, 2021 I recently swapped my 350 for a 454 and I took the water temp sensor out of the 350 and put it in the 454. I am not getting a reading for some reason. When I crank the engine, it pins all the way to the right, then once the car is running, it just stays at the minimum, 100 degrees. It is a factory SS gauge cluster that I installed a few years back and it was working before the swap. Could the sensor have gotten damaged somehow just laying around? What else could it be? Quote Link to comment Share on other sites More sharing options...
1970mcss Posted March 24, 2021 Share Posted March 24, 2021 Could it be a ground issue? Quote Link to comment Share on other sites More sharing options...
DragCat Posted March 24, 2021 Share Posted March 24, 2021 ^^^ That would be my first guess, harness or gauge issue. Isn't there a way to check the harness to the gauge? I know on the old blue ovals you can ground one lead and turn on the ignition and the gauge pegs full so you know that end is good. I think the bow ties are different tho Quote Link to comment Share on other sites More sharing options...
wallaby Posted March 28, 2021 Share Posted March 28, 2021 Same thing with chevys. The sender is a variable ground. No ground at all, the gauge goes one way, and a perfect ground sends the gauge the other way. I have seen issues when teflon tape is used on the threads causing a poor ground. I have a thread sealant made of lead, made in the 50's...eco unfriendly, but works great as a conductor and an anti-sieze. Quote Link to comment Share on other sites More sharing options...
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