t-case/speedo issue - JeepForum.com
 
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post #1 of 8 Old 08-26-2013, 05:09 PM Thread Starter
worsrider4047
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1998 ZJ 
 
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Location: cedarburg, Wisconsin
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t-case/speedo issue

So on my niner, I replace the t case with a 242 about 2 years ago, over the weekend I replaced that with a 231 out of a 93 Cherokee, everything is in and bolted up. So on my test drive the speedo didn't work and it wouldn't shift out of 1st gear
About a year ago I got a code for output shaft sensor, but being everything worked I didn't do anything about it, im still getting the code after the swap so I got a new sensor that goes on the output of the case, that still didn't work
Any thoughts on the issue? I'm quite puzzled (I do have another sensor on order in case the first one I got was bad )

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post #2 of 8 Old 08-26-2013, 05:22 PM
newfieZJ
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You sure it's not the trans output speed sensor you need ? What code ?

I would first try removing it and cleaning it . it's a magnetic pick up type . They get plenty stuck to them . I always just clean them when doing a fluid change . Beware , you will loose fluid removing this sensor IIRC
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post #3 of 8 Old 08-26-2013, 05:48 PM Thread Starter
worsrider4047
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Location: cedarburg, Wisconsin
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I did pick one up, haven't put it in yet but I'll try to clean it before I replace, still strange to me that it worked that morning but not that night after the swap
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post #4 of 8 Old 08-26-2013, 05:59 PM
newfieZJ
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Strange ? Not really . Lets assume this sensor is dirty , signal could get impaired intermittently/partially . If it sat it might pick up more and stop working .

What was the code ???

Just so we are clear

Trans speed sensor in the trans overdrive unit
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speed sensor on the t-case
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Size:  86.0 KB
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post #5 of 8 Old 08-26-2013, 06:10 PM Thread Starter
worsrider4047
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The code was for the output shaft sensor
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post #6 of 8 Old 08-26-2013, 07:14 PM Thread Starter
worsrider4047
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I cleaned it and it now shifts, but still no speedo
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post #7 of 8 Old 08-26-2013, 08:16 PM
newfieZJ
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Great , 1 down , one to go .

You tried a different speed sensor correct ? You may have it indexed incorrectly . 2 settings only so I would try to reclamp it in the other setting . Unclamp , turn the sensor , reclamp .
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post #8 of 8 Old 08-26-2013, 08:24 PM Thread Starter
worsrider4047
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Location: cedarburg, Wisconsin
Posts: 203
Ha I bet that's it, I'll try tomorrow after work and let you know the answer, thanks again for the help
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