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Old 12-07-2008, 10:01 PM   #1
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Speedometer

I am planning to tow a 97 TJ behind a motorhome, 4 wheels down with a tow bar, is there a way to electrically disconnect the speedometer so that it will not add miles to the odometer.

Thanks, Dale.

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Old 12-07-2008, 10:21 PM   #2
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electronic or mechanical speedo? electric? pull the fuse.. i duno, unplug the whole harness, rip out the sucker 12

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Old 12-07-2008, 10:44 PM   #3
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Nope. The speedo is gear driven on your TJ. No way to electrically do it.

Mechanically however...
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Old 12-08-2008, 01:03 AM   #4
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pull the connection right there, that should disable your speedo.



Also dont forget to shift the TCASE (not the tranny) to Neutral
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Old 12-08-2008, 01:13 AM   #5
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Unplug the connector at the transfer case speedometer gear housing.
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Old 12-08-2008, 02:09 AM   #6
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Unplug the connector at the transfer case speedometer gear housing.
hihihiiiii i was first and i have a picture too


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Old 12-08-2008, 09:47 AM   #7
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my speedometer on my 98 4 banger is going nuts. it jumps all over the place. how hard is this to change out? i have a manual tranny.
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Old 12-08-2008, 10:27 AM   #8
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is it legal or considered odometer tampering to unplug it if it already has alot of miles it probably doesnt matter but on a newer one were it could affect value could you get in trouble just curious
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Old 12-08-2008, 11:04 AM   #9
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I flat tow my '04 behind my motorhome. When I put the key in and turn it to the first "click" it unlocks the steering wheel but it doesn't record miles. I'm not sure what year they added this feature, but I think it applies to all TJs.
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Old 12-08-2008, 11:38 AM   #10
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my speedometer on my 98 4 banger is going nuts. it jumps all over the place. how hard is this to change out? i have a manual tranny.
It's likely nothing more than the speedometer gear isn't meshing properly with the pinion gear inside the transfer case. That could be caused by either a worn speedometer gear or the housing that holds the speedometer gear has not been rotated to the correct position to assure the speedo gear is fully meshed with the pinion gear inside.

The info at Changing Your Jeep Speedometer Gear should be enough to help you get it working by either rotating the housing a tad to get the speedo gear fully meshed, or by replacing the speedo gear itself. It's a simple 5-minute one-banana job to do either.
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Old 12-08-2008, 12:37 PM   #11
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excellent as always jerry. thanks.
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Old 12-08-2008, 06:14 PM   #12
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excellent as always jerry. thanks.
I'd suggest you buy an O-ring before you take it apart, the old overstretched ring is easy to damage and the leak is not just a drip or two, its very bad (once you get moving)..

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