new odometer gears, spedo works, but no action: next step? - Dodge Cummins Diesel Forum
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post #1 of 9 (permalink) Old 02-28-2018, 04:07 PM Thread Starter
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new odometer gears, spedo works, but no action: next step?

Hello,

I replaced my odometer gears but it still will not work in my 90 4X4. The speedometer has worked the whole time. I am wondering what the next step is? test the moter, maybe the control board is bad, get a used cluster? Or is there a good aftermarket gauge? I have to keep track of the mileage for work. Thanks!

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post #2 of 9 (permalink) Old 02-28-2018, 04:55 PM
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Have you replaced the VSS yet? They are prone to failure, even the new ones don't last that long.

1984/93 Dodge Crewcab, W350, 1 Ton SRW, long box, 350K Km's, hydroboost, 366 spring, fuel pin to deep side, 14cm housing, Piston LP, PS IC, Isspro Boost, Pyro and tach, NV4500, 29 spline NP205, 3.54's.
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post #3 of 9 (permalink) Old 02-28-2018, 06:24 PM Thread Starter
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I was wondering if it was working because the speedometer was working?
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post #4 of 9 (permalink) Old 02-28-2018, 06:43 PM
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I would be tempted to try a different cluster, those odometers can be tricky, good luck

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post #5 of 9 (permalink) Old 02-28-2018, 06:47 PM
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Quote:
Originally Posted by Morrow1 View Post
Hello,

I replaced my odometer gears but it still will not work in my 90 4X4. The speedometer has worked the whole time. I am wondering what the next step is? test the moter, maybe the control board is bad, get a used cluster? Or is there a good aftermarket gauge? I have to keep track of the mileage for work. Thanks!
Iíve had the same issue, had to replace the whole speedo. Iím assuming the motor that rolls the odo gears went bad because the gears were bound up for so long
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post #6 of 9 (permalink) Old 02-28-2018, 06:49 PM Thread Starter
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Thanks. did you just find a used gauge cluster and swap it in?
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post #7 of 9 (permalink) Old 02-28-2018, 06:50 PM
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Thanks. did you just find a used gauge cluster and swap it in?
Yes but it had broken tabs so I just put the used speedo in my cluster
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post #8 of 9 (permalink) Old 04-09-2019, 05:17 PM
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post #9 of 9 (permalink) Old 04-09-2019, 05:18 PM
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Donít know why attaching that image deleted what Iíd wrote but..,hereís what should have come before picture:

Iím just going through these speedo/odometer posts to update what worked for me. I had also replaced both the little gears in my 1990 d350 5 speed with no luck. I took it back apart and accidentally broke one of the wires from the contact point.
I also noticed the other wires were probably about 90% corroded and probably not conducting enough power to turn the motor anyways. I had all 3 resoldered and that got everything working.
These were the wires ON THE CLEAR PLASTIC PIECE, NOT the ones that go to the circuit board.


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