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Unread 09-02-2013, 06:34 PM   #1
Rich G
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1992 YJ Wrangler 
 
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4WD Light on when shifted in to 2WD?

Its a 92, any suggestions?

Thanks

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Unread 09-02-2013, 06:40 PM   #2
Old4X
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Transfer case vac switch. Either inop or hooked up wrong
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Unread 09-02-2013, 07:04 PM   #3
Mark05059
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or check valves missing
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Unread 09-02-2013, 07:09 PM   #4
Rich G
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Well it just started, I wheel it pretty hard so maybe I messed up the vacuum lines or something
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Unread 09-02-2013, 07:10 PM   #5
Rich G
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I found this thread

http://www.wranglerboard.com/f32/exp...um-bypass-270/
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Unread 09-02-2013, 08:11 PM   #6
Hillbilly Jeep
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i had this happen to me before ended up the vac lines fell on the down pipe and melted
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Unread 09-02-2013, 08:36 PM   #7
Anticanman
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Sometimes things stick in the old vacuum system. If you swith back and forth a few times, will it remedy itself? A new cad unit is extremely expensive. Perhaps you should consider doing a TJ switch mod and locking the fork over permanently.
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Unread 09-03-2013, 07:42 AM   #8
Hillbilly Jeep
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whats the tj switch mod?
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Unread 09-03-2013, 08:06 AM   #9
Anticanman
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http://www.jeepforum.com/forum/f12/t...80/?highlight=
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Unread 09-03-2013, 06:00 PM   #10
Rich G
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Quote:
Originally Posted by Anticanman View Post
Sometimes things stick in the old vacuum system. If you swith back and forth a few times, will it remedy itself? A new cad unit is extremely expensive. Perhaps you should consider doing a TJ switch mod and locking the fork over permanently.
That's exactly wha I'm gonna do, something about getting rid of the vacuum lines sounds like a good idea to me
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