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Old 11-19-2013, 08:24 PM   #1
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Speedo Waiving Like a Magic Wand

While driving my '97 TJ today, I noticed the speedometer waiving like a magic wand. Once I get the speed up to approximately 20mph, the needle jumps from 20mph to 70-80 mph. Loose speedo cable or worn out gear in the transmission pan. OBTW, I have a 2.5 4cylinder (go hampster power!) Help please
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Old 11-19-2013, 09:20 PM   #2
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It is most likely your gear but possibly the cable. Its and easy fix for the gear and a bit more work for the cable. The speedo gear is in the transfer case.

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Old 11-20-2013, 09:31 AM   #3
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Thanks...I hope it is the gear and not the cable. Appreciate the quick response.
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Old 11-20-2013, 09:48 AM   #4
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TJs do not have cable driven speedometers.
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Old 11-21-2013, 08:14 AM   #5
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Quote:
Originally Posted by freeskier View Post
TJs do not have cable driven speedometers.
Electric wire is sometimes called cable. Like winch power "cable".
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Old 11-21-2013, 08:43 AM   #6
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Mine does the same thing! When I put in a sye, it came with a tone ring reader for the speedometer. Idk what to check!
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Old 11-21-2013, 09:47 AM   #7
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Quote:
Originally Posted by outofmoney View Post
Mine does the same thing! When I put in a sye, it came with a tone ring reader for the speedometer. Idk what to check!
Re torque the yoke nut.
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Old 11-21-2013, 09:47 PM   #8
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Thanks free skier! I'll give that a shot tomorrow.
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Old 12-09-2013, 05:14 PM   #9
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I am jumping on this Topic because it is the closest to my issue. So I have a Rubi so nothing has been done to the trasnfercase becised the new Tom Woods Driveshaft when I lifted it.

My speedo goes 50-60 MPH faster than what I am doing and at the same time my brake lights are not working. Replaced the Spedo sensor and brake petal sensor and still nothing.

It is a LONG shot but I am running out of ideas.

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