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Gauge cluster issues

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Old 07-13-2013, 03:32 PM
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Default Gauge cluster issues

I reset my ecu a while back by unplugging the ground on the battery for about 30 minutes and before then my speedo and everything else worked as it should, after I reattached the ground all the gauges takes a few minutes to start working and now my tach will work for a second then drop to 0 while the jeep is idling. Any ideas how to fix it or what could be wrong?
Old 07-13-2013, 04:14 PM
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Year: 1998 and 1988
Model: Cherokee
Engine: 4.7
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Originally Posted by adams98cherokee
I reset my ecu a while back by unplugging the ground on the battery for about 30 minutes and before then my speedo and everything else worked as it should, after I reattached the ground all the gauges takes a few minutes to start working and now my tach will work for a second then drop to 0 while the jeep is idling. Any ideas how to fix it or what could be wrong?
Not to sure. I know the 98 gets a digital input from the pcm. there is a self test functions.

Hers a little gift for you. If there's an answer it should be in there

https://www.dropbox.com/s/0cztwywshk..._1997-1999.pdf
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