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Old 09-02-2017, 05:14 PM   #1
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Tachometer

my tachometer has started to act funny, erratically even, jumping from 700 rpm to 500 rpm, no change in the engine speed, just the needle, has anyone this happen to your rig, and any thoughts what might be happening?
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Old 09-02-2017, 06:28 PM   #2
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I would pull the connections..clean them with contact cleaner and lube them with dielectric grease...

BTW, does you rig have and sport chassis stickers on it ?
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Old 09-02-2017, 07:42 PM   #3
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hey hey grassy, good to see your still here, no sport chassis stickers on it, now on those connections, the one at the back of the tach needs no explanation, but where is the other end located, any ideas?
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Old 09-02-2017, 07:57 PM   #4
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Quote:
Originally Posted by JEEPOHOLIC View Post
my tachometer has started to act funny, erratically even, jumping from 700 rpm to 500 rpm, no change in the engine speed, just the needle, has anyone had this happen to your rig, and any thoughts what might be happening?
The first thing I do with dash electrical problems is re do the grounds. Then all outher connections. Bad grounds ar on one of the most common problems. Let us know what you find.
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Old 09-04-2017, 02:27 PM   #5
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hey hey grassy, good to see your still here, no sport chassis stickers on it, now on those connections, the one at the back of the tach needs no explanation, but where is the other end located, any ideas?
I like the idea of grounds.. but no, I have no idea where it starts.....haven't dug that deep...

Last run of the season next week..
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Old 09-18-2017, 06:31 PM   #6
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so is it fixed ?
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Old 09-23-2017, 11:46 AM   #7
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it comes and goes grassy
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Old 09-23-2017, 12:50 PM   #8
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I have to take my rig into frtliner next month..want me to ask ?
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