Tach wiring 79F150
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Joined: Apr 2006
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From: San Jose
Tach wiring 79F150
The prior owner of my truck had the tach wired wrong, and the light never turned off . One dead battery later, it was disconnected. My question is this.. The wire that comes from the tach How is it connected to power ?
Last edited by ford4her; Sep 14, 2008 at 05:53 PM. Reason: Forgot I'd already asked for the same info in a prior post.
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Joined: May 2006
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From: Central Florida
There should be four wires, sometimes 5, but I am more familiar with 4. One wire is tach sense and should go the coil. One is a ground, one is switched power and the last is illumination. The illumination wire should be hooked in with the dimmer so you can turn it down, you can pick up dimmer out of the light switch.
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charles jones
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
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