1990 Jeep Wrangler "4x4 vacuum" Questions

4x4 dash light will not go off when the vacuum line is connected. I have replaced the vacuum actuator, which was rotted. I have considered replacing the indicators switch located on the front axle 4x4

...4x4 , the light goes on but i don`t have front wheel spin? i checked the front drive shaft and it is locked , how do i know if it is the vacuum motor or the forks. j.peever You would have to remove ...

...Vacuum lines at front axle are part of your 4x4 control system. When changing oil or doing anything under the vehicle, always good to take a look at them and make sure they are secure, and in good ...

...vacuum lines go to the 4x4 system there is red, blue , and yellow HI. THERES A PLACE TO PLUG THEM IN, DOWN ON THE FRONT HOUSING NEAR THE RIGHT HAND FRONT SPRINGS WHERE THEY BOLT ON THE HOUSING. ...

...wrangler 4x4 vacuum line going from the front axle to the tansfer case. Where does the red line hook up? the spring is not working and you need to take it back also there may be another dvd in it ...

4x4 indicator will come on, but the system does not engage. Any clues? Check the vacuum disconnect on the front axle. After 15 years, the lines break and/or get clogged. I have seen a few of the shift

...had a problem and the vacuum is what switches into 4-wheel mode.The lights would come on indicating 4x4 on.and without lifting vehicle off the ground you couldnt tell. An old trick of the trade.

4x4/4x2 vacuum solenoids are attached to the upper RH side of the engine compartment, and alternately route vacuum to the vacuum motor which engages/disengages the center axle disconnect collar in the

4x4 wont engage front will drive runs off vacum so does the rear. It's not getting the vacum to engage. Vacum lines lead to two boxes, but not sure where to go from there or which box. I installed a ...

...4X4 light blink off when it thumps. I changed the shift motor on the front axle but there was no change. I don't know where I should look next. I have suspected a problem in the vacum hoses but most ...