1990 Jeep YJ 4WD

1990 JEEP WANGLER YJ
17,000 MILES • 6 CYL • 4WD • AUTOMATIC
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JBAUER
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  • 1 POST
When I engage the 4WD the hubs trurn and drive shaft, but no power to the fron wheels? When i put in 4 low it goes into low gear, but still no power to fron wheels?

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Mar 16, 2009 at 7:10 PM
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MECHCURT
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  • 184 POSTS
On the front axle, on the passenger side there is a vacc pot that lockes the axle. This pot can go bad, you can lose vaccum. Ensure you have vaccum there and the post is operating correctly. The vaccum just moves a cog over the axle ends locking it and in turn you get 4wd. Check here first and let us know .. Curt
Apr 25, 2009 at 10:10 AM