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Unread 04-19-2013, 04:55 AM   #1
98jpchero
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speedometer not working in 4 low?

Hello, i have a 98 jeep grand cherokee 4.0L with the all time 4wd. Speedometer works just fine in 4 hi. Was doing some wheeling the other day, put it in 4 lo and the speedo wouldnt work. Any ideas on what could cause this?

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Unread 04-19-2013, 06:36 AM   #2
speedbucket
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Why would you need it in 4lo????? You shouldnt really be going fast enough for it to register
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Unread 04-19-2013, 07:15 AM   #3
Scopez
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Quote:
Originally Posted by speedbucket View Post
Why would you need it in 4lo????? You should really be going fast enough for it to register
I was thinking the same thing...haha.
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Unread 04-19-2013, 08:54 AM   #4
FAlfani81
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thats not true at all! Nobody ever goes past or at least 10mph in 4lo? I was doin a good 25 in 4lo through the messed up snow storm we had and the motor wasn't even screaming.
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Unread 04-19-2013, 09:00 AM   #5
speedbucket
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Quote:
Originally Posted by FAlfani81 View Post
thats not true at all! Nobody ever goes past or at least 10mph in 4lo? I was doin a good 25 in 4lo through the messed up snow storm we had and the motor wasn't even screaming.
And you needed a speedometer then why???

If your going 25 then 4lo is t needed
The only scenario I havw come across where I needed wheel speed in 4lo was a stupid steep/long hill climb called "right foot"....and I can promise you I wasn't looking at the speedo....
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Unread 04-19-2013, 09:20 AM   #6
FAlfani81
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Quote:
Originally Posted by speedbucket

And you needed a speedometer then why???

If your going 25 then 4lo is t needed
The only scenario I havw come across where I needed wheel speed in 4lo was a stupid steep/long hill climb called "right foot"....and I can promise you I wasn't looking at the speedo....
It still kinda was. It drove much better through the deep side street snow being actually locked in 4wheel. The full time just didn't feel right to me
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Unread 04-19-2013, 05:20 PM   #7
ratmonkey
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Quote:
Originally Posted by FAlfani81 View Post
It still kinda was. It drove much better through the deep side street snow being actually locked in 4wheel. The full time just didn't feel right to me
if it was with the original 249, it doesn't lock in low in your year.

the speedometer is driven by the rear drive shaft output on the transfer case. nothing about shifting to 4low should effect it.
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Unread 04-19-2013, 05:26 PM   #8
FPKites
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I would be looking for frayed wires, maybe even wrapped around or touching the linkage.
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Unread 04-20-2013, 06:47 AM   #9
FAlfani81
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Quote:
Originally Posted by ratmonkey
if it was with the original 249, it doesn't lock in low in your year.

the speedometer is driven by the rear drive shaft output on the transfer case. nothing about shifting to 4low should effect it.
This was with my 04
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