Question about 1994 Toyota Pickup

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My 1994 toyota pickup will not come out of 4wd.. it shifts to 4wd ( light comes on ) shifts back to 2wd ( light goes off ) but driveshaft and axles up front stay spinning even in 2wd position!

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  • Douglessd
    Douglessd May 11, 2010

    How did you notice this problem? Does it make horrible noises on hard surfaces? My old Landcruiser has manual free wheeling hubs on the front. I assume yours are automatic. I guess you could jack up the front of the car and see if the wheels are pushing the front drive sharft or if the gearbox is pushing it. Perhaps one of your automatic free wheeling hubs is stuck.

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  • 298 Answers

To take a 4x4 out to 2x4 when you put it back to 2x4 you have to drive the car in revase for a couple of yards so the transfer can release the front differancial good luck

Posted on Jul 12, 2009

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Posted on Jan 02, 2017

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2 Answers

I have a 93 jeep Cherokee, it will move in 4wh and in 4wl but will not go back into 2wd?


Hello guy
try posting what 4wd system you have,? first.
command trac or select track, (the latter is full time)
part time or the full time system,
we cant guess it....
read the operators guide first, if a part time system only
as i suspect, stop driving on dry pavement.
it's only for ice, or dirt. part time. part time is not a full time system.
Command-Trac
shifting to 4wd on dry (means no ice) pavement causes, drive line wind up! and the gears to lockup. (see steering get tight in turns?> and is dangerous to drive it like this , you, me and the box)
posted here 100s of times.

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


the non grand Cherokee. early

had these choices
  • 1987-2001: New Process NP231 Command-Trac, part-time only, 2.72:1 ratio with low range
NP231 has the following settings: 2HI, 4HI, N, 4LO
  • 1987-2001: New Process NP242 Selec-Trac, full-time or part-time, 2.72:1 ratio with low range
NP242 has the following settings: 2HI, 4 full-time, 4 part-time, N, 4LO


as you can see you need to first know, what NP box you have or
photo your shift lever for 4wd, an post it and we tell you.

more facts, on select trac. (totally unlike command trac)
Selec-Trac locking hub is used on 4WD Cherokee. Selec-Trac
utilizes a non-disconnect front axle. Engagement of 2WD or 4WD is
accomplished at transfer case by means of mechanical shift linkage.
System allows full or part time 4WD. Selec-Trac can be shifted into
2WD or 4WD modes from inside the vehicle at any speed.
unquote
next from the service manual,
4WD TO 2WD
1) Place mode select switch in 2WD position. Transfer case
should shift to 2WD and not allow shifting into 4WD or LO range. Axle
should shift after transfer case shifts.
2) To determine if front axle has completed a shift out of
4WD into 2WD, position mode select switch back to 4WD position while
operating vehicle at slow speed. If vehicle shifts into 2WD, axle will
ratchet. If shift is not completed, transfer case will shift into 4WD
and hissing sound will come from mode select switch.
end quote.

if unsure read the FSM book its free.
shows you both systems and how to diagnose it.

in the box, click Cherokee,,then click 1993, and behold.
the real deal.

http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service

4e7ebed4-9c81-4927-b26e-02808a82acff.jpg

May 10, 2016 | Jeep Cars & Trucks

1 Answer

99 Durango four wheel drive staying in 4WD and won't shift to 2WD


my durango requires me to reverse several feet before it dis engages. i have owned a few and they all do it just back up and it will go back to 2wheel no problem

Dec 21, 2012 | 1999 Dodge Durango

1 Answer

4wd front hub wont disengage


Possible the vacuum bleed-off to the switch you installed isn't allowing it to completely disengage. Pull the bleed-off line from the new switch and see if it works. could be just a tight spot/bent closed in the bleed-off line or the vent plugged.

Apr 04, 2017 | 2002 GMC Sonoma Extended Cab

2 Answers

Got. A 2003 f150 4x4 got problems with 4 wheel drive locking in and stay in drive shaft turning front wheels not


Operationally vacuum shifts the front axle between 2WD and 4WD mode. The GEM ( Generic Electronics Module ) applies ground to the solenoid needed for the mode selected on the switch ( for ESOF ) or when the transfer case shift lever is moved ( MSOF ).The contact plates in the transfer case signal the GEM that the transfer case is engaged, and the Vacuum solenoids need to be activated ( either 2WD to 4WD or 4WD to 2WD ).

Lift and support the front of the truck so the front wheels are off the ground ( take safety precautions, chock wheels, jack stands, etc )
Key on, engage 4x4 and try to turn the front drive shaft.
- If it turns it is a problem with the transfer case.
- If it doesn't it is a front axle engagement problem ( this is what you seem to have, the transfer case is engaged and will drive the front shaft mine was a key on engine off test ).

- If the front drive shaft does not turn :
•With the truck running ( with front wheel back on the ground ), switch from 2WD to 4WD and back again, the vacuum shift motor should move the lever on the front axle.
sscullys_185.jpg
-- If the vacuum shift motor does not move:
1.Check for vacuum on the lines while shifting between modes. Pink vacuum line is 2WD mode, Light Blue vacuum line is 4WD.
2.Check the fuses for the 4WD system and the solenoids.
3.Check the vacuum lines from the vacuum shift motor to the solenoids on the firewall.
sscullys_187.jpg
4.Check the vacuum lines from the solenoids to the vacuum reservoir box behind the battery.
5.Check the vacuum reservoir box for cracks.
6.Typical solution is the vacuum lines ( to the solenoids or to the vacuum shift motor ) are cracked or the vacuum shift motor has a cracked diaphragm and has water in it.
7.Could be the shift plate contacts in the transfer case are corroded / not making good contact, and not activating the solenoids.
sscullys_186.jpg

Usually the case is cracked vacuum lines from the solenoids, the next common is a cracked vacuum reservoir box, and 1 time I have seen the mount for the vacuum disconnect motor broken ( motor floating free so it could not push against the axle )
sscullys_188.jpg

Aug 28, 2011 | 2003 Ford F150 Regular Cab

1 Answer

I cant find the location of the speed sensor for a 1996 Mazda B3000 pick up with auto trans


Look around the auto transmission for wires that lead to the VSS (Vehicle Speed Sensor):


    1. Remove the flywheel to converter attaching nuts. Use a socket and breaker bar on the crankshaft pulley attaching bolt. Rotate the pulley clockwise as viewed from the front to gain access to each of the nuts.
    2. NOTE: On belt driven overhead cam engines, never rotate the pulley in a counterclockwise direction as viewed from the front. Remove the Vehicle Speed Sensor (VSS) clamp retaining bolt . . .
    1. 89687p11.jpg
    1. . . . then pull the VSS sensor from the transfer case (4WD) or extension housing (2WD)
    1. 89687p12.jpg

    1. Remove the speedometer cable and/or vehicle speed sensor from the transfer case (4WD) or extension housing (2WD).
    2. On 2WD vehicles, scribe a mark indexing the driveshaft to the rear axle flange. Remove the driveshaft.
    1. On 4WD vehicles, remove the transfer case.
    1. Fig. 3: Speedometer cable connection
    2. 85557046.gif
  • Jul 05, 2010 | 1996 Mazda Pickup

    1 Answer

    I HAVE NO PROBLEM WITH MY RAV4. I JUST WANT TO KNOW IF IT IS 4WHEEL DRIVE. RAV4 GX VVTI 03 model.


    The easiest way to tell if you have 4WD is to look under the car for a driveshaft under the rear floor, that is connected to the rear axle. If you have a driveshaft, you have a 4WD vehicle. No Driveshaft, no 4WD. The 2WD Rav / 4 are, for some reason, also called Rav/4s there is no 'Rav / 2"

    Dec 23, 2009 | 2008 Toyota RAV4

    2 Answers

    Transfer case wont engage


    shift into 4wd and move truck a couple of feet.
    if light is still off, park truck block the wheels set the park brake jack right front wheel and try to hand spin the wheel if wheel doesn't turn 4x4 is functioning properly but there is a wiring problem use an ohmmeter to check the 4x4 switch wiring fuse and bulb
    if wheel turns freely the front axle or transfer case is not engaged
    attempt to hand spin the front driveshft if the driveshaft will spin the transfer case is not engaged check the transfer case shift linkage, problem is in linkage or transfer case internals
    if the driveshaft will not spin the transfer case is engaged properly
    with trnsmission in neutral or park start engine measure vacuum on the two vac lines at front axle shift motor . one line should have approx 20" vacuum. other line should have none
    if no vacuum measured look for vac leak or bad vac switch
    if both lines have vac look for a bad vac swithc or ruptured cad actuator diaphragm
    if one line has 20" +- VAC
    move transfer case lever to 2wd measure vac again lines should have swapped vac signals
    if no vac switch bad or 4wd shift likage needs adjusting
    if yes vac motor bad or stuck or shift fork stuck
    remove vac shift motor from the axle attach vac lines to shift motor engage disengage 4wd
    does shift motor plunger move at least 1/2 inch
    no shift motor bad
    yes check axle shift fork and vac motor for binging

    Jan 27, 2009 | 1999 Dodge Ram

    1 Answer

    1994 22re 4x4 problem


    your transfer case is not working properly, try this trick, shift into 4wd and gently back up the car and go forward and back up again wait for the indicator light to come back again, goodluck, otherwise you need to have those transfer case checked and maintained, have those front hubs checked and maintained too. Its would be better to use your 4WD more often. Try this trick not on a paved road pls.

    Nov 25, 2008 | 1986 Toyota Pickup 4WD

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