Forums
New posts
Search forums
Image search
Shop
Amazon Store
T-Shirts
Stickers
Members
Current visitors
Supporting Member Upgrade
Sponsors
About
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Image search
Search
Search titles only
By:
Search titles only
By:
Menu
Install the app
Install
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Jeep Wrangler YJ
YJ General Discussion
4WD stopped working on 1987 YJ
Reply to thread
Message
<blockquote data-quote="deadpool1" data-source="post: 439356" data-attributes="member: 21229"><p>that vacuum servo (motor_ actuator) is push/ pull logic.</p><p>when one side sucks the other end vents.</p><p>if not , it goes to loggerheads. (means fights it self)</p><p></p><p>get a hand held vacuum pump,(w/gauge) and use it on the inboard nipple to get 4wd, the move to outboard ( all hoses pulled) and now 2wd and dash lamp goes off.</p><p>helps to have right wheel off ground. so the Vac servo etc can move easy</p><p></p><p>oops that free line is the VENT, oops</p><p></p><p></p><p>95 looks like this.YJ</p><p></p><p></p><p>mine crib. ( the service manual is free, ask>)? it's all covered there.</p><p></p><p>[ATTACH=full]122200[/ATTACH]</p></blockquote><p></p>
[QUOTE="deadpool1, post: 439356, member: 21229"] that vacuum servo (motor_ actuator) is push/ pull logic. when one side sucks the other end vents. if not , it goes to loggerheads. (means fights it self) get a hand held vacuum pump,(w/gauge) and use it on the inboard nipple to get 4wd, the move to outboard ( all hoses pulled) and now 2wd and dash lamp goes off. helps to have right wheel off ground. so the Vac servo etc can move easy oops that free line is the VENT, oops 95 looks like this.YJ mine crib. ( the service manual is free, ask>)? it's all covered there. [ATTACH=full]122200[/ATTACH] [/QUOTE]
Verification
Post reply
Forums
Jeep Wrangler YJ
YJ General Discussion
4WD stopped working on 1987 YJ
Top
Bottom