Question about 1990 Jeep Wrangler

2 Answers

1990 jeep wrangler front driveline engages but tires dont.

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Check you vacuum motor and vacuum lines going to the vacuum motor from the top of the transfer case. when u engage your 4WD the valves on the transfer case are opened by a switch on the transfer case. the lines coming from the switch cross the top of the transmission and up the passenger side of the engine compartment. these lines will be red, blue, green and yellow, and often covered by a black sheeth, about 1inch in diameter. check these lines to make sure they are connected. if they are not, the vacuum motor will not engage your front axle. your front driveshaft will still spin, because the transfer case is engaged as normal, but the right front axleshaft is a 2 piece system engaged by this vacuum motor. if they lines are messed up, the motor will not engage the axle collar connecting the 2-piece axle. if your vacuum motor is working, then you might have a broken collar, or perhaps a broken axle shaft. but it's probably just the vacuum hoses or the motor :) i hope that helps!

Posted on Nov 18, 2008

  • brunizzy Nov 27, 2008

    there is also a vacuum line that goes from the carbuerator area over the engine and under the battery. under the carb it terminates with a T-connector...make sure it's connected to the t-connector and that the other 2 lines are connected as well...with out this connection, your front axle shaft will not engage either.

×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Sergeant:

    An expert that hasĀ over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 393 Answers

Check the front hubs could be frozen. if it hasen't been used in a while

Posted on Nov 16, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1998 jeep wrangler when in 4 wheel drive the front


this is part time 4wd, selectrac, and is NOT AWD, all wheel drive
you dont have Quadra-trac do you....

this is driving wrong,
ever read the operators guide yet?
it says not to drive on dry pavement in PT 4wd
dry means , not iced.

are you doing this>?

http://www.rubicon-trail.com/4WD101/driveline-bind.html

Oct 16, 2014 | 1998 Jeep Wrangler

1 Answer

How do i check the front axle vacuum selonoid on a 2002 jeep wrangler


02 , just sold mine, best car ever. had, of many.

how do you know that.?

and what are the tires, touching, (dirt, snow,ice, grass , pavement)

what?

this car has part time 4wd, it is not AWD

its not a Grand cheerokee with AWD.

engaging 4wd on ice free pavement is wrong.

http://www.rubicon-trail.com/4WD101/driveline-bind.html



and my fsm states.

read the operators guide in the glove box, it will say....

"2WD is intended to be driven on normal street and highway conditions, such as HARD surfaced roads."

Then

"4H & 4L positions are intended for loose slippery road surfaces only and not intended for normal driving" (They assume paved streets are normal.)

"Driving in 4H or 4L positions on hard surfaces roads, will cause, increased tire wear, and damage to the drive line components."

Unqual tire sizes, will do the same damage. "circumference mismatched"

Last: "do not attmpet to make a shift, while only the front or rear wheels are spinning" No transfer case synchronizer exists and damage will result."
(kill the gear dogs, you will)

May 26, 2014 | 2002 Jeep Wrangler

1 Answer

1991 Jeep wrangler 2.5 standard shift.vacumn lines from transfur case to front drive axle.we need a picture of where each vacumn hose goes. a print out of the colors. thank you


i just boought a 1992 Jeep Wrangelr sport with a chevy 305 V8 and its a automatic with a standard 4 wheel drive and i put in 4 wheel drive and the front tires wont move what is wrong????

Mar 11, 2010 | 1990 Jeep Wrangler

3 Answers

2001 Jeep wrangler, at 45-50 mph, the front end and steering wheel shakes real bad.


I would start by first making sure you dont have a bent rim. Check the tires for any bubbles in the sidewall or any deformation in the tire as this would suggest a broken cord inside the tire. If that checks out, get the tires balanced and see if that solves the problem.

Jan 21, 2010 | 2006 Jeep Wrangler

1 Answer

1990 jeep yj 4 wheel drive issues


what are you trying to say is that the front wheels wont engage?? if this is your problem? check the actuater on the passenger side axle there are 3 lines that go to it and that is what pulls it in and pushes it out of gear by air.

Oct 06, 2009 | 1990 Jeep Wrangler

4 Answers

When i have my 4 wheel drive engaged making turns


If you are in 4WD, and not on a slippery surface, the tires may be having an effect called "scrubbing" where the tire on the outside of the turn is not rotating at the same rpms as the tire on the inside of the curve. I have noticed this on my jeep wrangler in 4wd.

Using 4wd on dry or non-slippery surfaces can cause this problem, and also will cause excessive tire wear.

Try the same manuever on a gravel road or a ice patch (it's been in 90s here in Texas, so good luck on that one) and see if it is improved.

Also, would probably expect a little more effort to steer when in 4wd because the universal joints or CV joints are not in perfect alignment during a turn.

Sep 11, 2009 | 2001 Dodge Ram 2500 Truck

1 Answer

Front drive line will engauge but front tires will not,88 jeep wrangler


I would suggest from your description that there are several possibilities.
1. Broken input PINION SHAFT.
2. Broken AXLE DRIVE SHAFT.
To check,
Get underneath and see how much that front Driveline rotates in each direction, More than 1/4 Turn is excessive backlash....Problem!!!
If it rotates freely...possible Broken PInion Shaft.
Raise the front wheels off the ground.Secure the Front drive line, get a friend to hang onto it, and wedge a foot against 1 front wheel, now try and rotate it. If it does, then that is the Junk one. Likewise, if it does not, then repeat on the other side. If that is OK, then it has to be the Transfer Box
Then you have a bigger problem.
Regards,DT

Aug 28, 2009 | 1988 Jeep Wrangler

1 Answer

1990 Jeep Wrangler 4WD won't engage.


Most likely the vaccum actuator...If that works fine, you COULD have a stuck shift fork in the front differential...unlikely though

Aug 18, 2009 | 1990 Jeep Wrangler

1 Answer

1991 jeep 4wd fuse


Check transfer case wiring, possible loose wiring/open circuit. If your other lights in dashboard work such brake light, seat belt lights, engine light than it is not a fuse. raise all for tires from the ground and engage the four wheel drive remember to have in neutral and put in gear either 4L or 4H and see if the wheels in front move.

Apr 04, 2009 | 1991 Jeep Wrangler

Not finding what you are looking for?
1990 Jeep Wrangler Logo

Related Topics:

544 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

64052 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21990 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...