Cali Steve Posted May 28, 2021 Share Posted May 28, 2021 My tach spins all the way past the numbers and stays pegged pointing about the 6 o’clock position upon startup. Never changes until engine is shut off. Any ideas? Link to comment Share on other sites More sharing options...
scaleless Posted May 28, 2021 Share Posted May 28, 2021 Does it return all the way to the zero position when you shut it off? Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 28, 2021 Share Posted May 28, 2021 Ha. Oh good ole 84-86 clusters. Chunk just recently started doing this when I replaced the ground cable. Something leads me to believe there is resistance between the tach and ground where there shouldn’t be. Link to comment Share on other sites More sharing options...
Cali Steve Posted May 28, 2021 Author Share Posted May 28, 2021 Yes, it returns to 0 rpm when the engine is shut off. Link to comment Share on other sites More sharing options...
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