Adding a Tach
10-17-2007, 10:31 AM
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Adding a Tach
I just recently bought a 93 ram 250 and I want to put one on mine and im kinda bad on computers so I can't find a Tach on the internet and me and my fellow diesel power freaks are very curious as to where the tach hooks up to.
10-17-2007, 11:12 AM
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Isspro has diesel tachs that plug right into the factory wiring. The 91.5-93 (I think those are the right years) had the factory wiring. The wires are on the left side of the steering column close to the fuse block. There are 4 wires in a flat plug and the wires are red, black, orange, and black (I think). The 89-91 trucks did not have the wiring, you would need a crank sensor or alternator trigger to install one on those trucks.
10-17-2007, 11:42 AM
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BC847 just recently posted a thread about adding a tach to his firs gen. truck. Heres a link to the thread. it should tell you everything you need to know. https://www.dieseltruckresource.com/...d.php?t=173561
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