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'89 GMC Odometer not working

25668 Views 4 Replies 5 Participants Last post by  Bryan Carosi
I have seen some other postings about odometers not working on newer trucks and how the instrument cluster is all one unit. I am hoping that with mine being a little older the odometer can be fixed without having to replace the entire cluster. Any suggestions? I am hoping to try to fix it when I dig into the dash to change out a burnt out dash light.

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I think you are correct in the instrument cluster being one piece. The best way to tell is to look at the transmission and see if you have a speedometer cable or a speedometer sensor. The cable-driven speedos are individually replaceable, but the speed sensor ones are part of the whole cluster and can't be individually replaced. I have a non-working trip meter because it's all 1 cluster.
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