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speedometer sensor

Old 12-15-2015, 08:00 PM
  #1  
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Join Date: Sep 2012
Posts: 38
Year: 1994
Model: Grand Cherokee
Engine: 4.0
Default speedometer sensor

Just changed the viscous coupler in my 94 GC.I am sure I have the gear in correctly but the speedo is not reading any mph. The sensor felt easier to put on than when I took it out maybe it's not meshed with the drive gear.Other than a wiring problem from removing it I don't know what it could be.I will try reinstalling it this weekend .Any ideas would be helpful.Thanks
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Old 12-16-2015, 01:44 PM
  #2  
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Location: Manlius, east of Syracuse, NY
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Year: 2000
Model: Grand Cherokee (WJ)
Engine: 4.0L
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I think it has to be indexed (rotated) to engage correctly. That's so you can use different gears for different axle ratios.
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Old 12-16-2015, 04:46 PM
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Year: 1994
Model: Grand Cherokee
Engine: 4.0
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Thanks Dave I watched the direction it came out but I think it didn't engage going back in.That was the last mechanical work for this job before refilling so I was kinda beat at that point.I will try to re-engage it this weekend and see how it goes.At least the wheels aren't binding anymore. Thanks Bob
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