How Fast Am I Going?
04-07-2012, 10:10 PM
#1
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How Fast Am I Going?
On my recently acquired 1993 Cummins, the speedometer doesn't work. The sending unit at the t-case is hooked up. I hooked a slow drill up to the sending unit. Nothing. Where should I start checking?
04-07-2012, 10:23 PM
#3
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04-07-2012, 10:28 PM
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The pcm, I don't denver what it stands for, is kinda like a brain, its in the left front fender by the battery and horns check the sticky on how to test it, and if it checks out then its probably the gears behind the speedo, sticky also has info on repairing and sourcing the gears
04-07-2012, 10:47 PM
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https://www.dieseltruckresource.com/...t-t102027.html this is the sticky it has alot of information on how to
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