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Tach and ODO Issues

 
Old 04-16-2019, 12:50 AM
  #1  
captcashew
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Default Tach and ODO Issues

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I'm trying to figure out what is going on with my tachometer and odometer. The last year or two I haven't had much chance to drive my 1987 928 S4 automatic as much as I would have liked. I notice some of the instrument cluster started to work intermittently. Speedo, fuel gauge. But the tach went out a year or so ago. I also noticed the odometer hasn't moved in a long time either. I've taken the pod out and cleaned it before, so not a huge deal. I did it again over the the winter. And while the speedo and fuel gauge still aren't perfect, the cleaning and driving it more seems to have them working more often. But still no luck on the tach and odo. I know I cleaned everything really well, so I don't think it is any connections on the cluster. or the connections behind the pod.

Is there anything else I am missing? It's been a couple years since I cleaned all the grounds. Could that be it? It hasn't been that long. Someone at a PCA meet-up mentioned there is something down near the transmission I might want to check. I need to do an oil change, so maybe there is somewhere I should look at while I'm under there.

Or maybe just part of the cluster is just dead and I should send it out to be checked/repaired. I'm only semi-handy. Odds are about 50/50 that when I start to pull stuff apart that I will make things better versus make it worse.

Any help is greatly appreciated. I like having everything working and I loved it when I didn't have any of these issues for years. But I guess that is what I get for not driving it much lately. Hopefully that will change this year.

Thanks in advance.
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Old 04-16-2019, 03:48 AM
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The Forgotten On
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Honestly, I would take out the pod and install a new circuit panel. They are inexpensive for 85-88 cars compared to the rest.

Doing this will eliminate issues with it in the future because they are all on borrowed time at this point.
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Old 04-16-2019, 08:17 AM
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Huh. I didn't realize this was an option. Any particular place I should order it from? I'd have no problem doing this. I've pulled the old one off to clean it (very carefully). THat wasn't that bad as long as I was methodical and careful.
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Old 04-16-2019, 10:44 AM
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Got mine from Roger
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Old 04-16-2019, 11:22 AM
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Thanks. I shot him an email. I didn't see the thread about my year, but saw two for earlier models. I'll have to dig some more. Dang, that would have worked out great to have when I pulled the pod this past December. Oh well. Guess I should check the forum more often...
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