Question about 1988 Ford Bronco II

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Bronco II slips out of 4WD at a a bump or suddden accelleration

It never feels like it locks into 4-H. A light push of the shifter will push it out of 4wd. It is obvious that the wheels don't grab in the snow when it slips out. The 4x4 light goes out. Speed is 10 to 20 MPH. Anyone else experienced the problem? Thanks a Mill. JERRY

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Thair is a module in top of the trans mission or transfer cas i cant remember witch but it need to be replaced tat should cure your problem

Posted on Dec 17, 2008

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1989 bronco II 4wd automatic. sister recently gave it to me. been in 4wd one time years ago. has automatic hubs. will not go into 4wd. lights by push button do no light up. any suggestions.


There is a motor on the back of the transfer case that controlls the 4x4 and it will "gum" up from lack of use. I would start with that.

Feb 10, 2012 | 1989 Ford Bronco II

1 Answer

4x4 K1500 Chevy Truck, 4 wheel drive repair instructions


There are a number of different hub systems so this may not work but it has worked for me on both auto and manual locking hubs. On a flat surface without traffic. Put the trans into neutral, shift the transfer case into 4x4, shift the trans into reverse and back the truck up 15-20 feet. Completely stop and shift trans into drive. See if this has locked the hubs in. If not, you can also try following the same instructions except shifting into 4wd low. Sometimes the hubs need a "bump" to get them to slip into place. Keep In mind that if the 4 wd low select works, you need to shift it back into 4 wd high before continuing! When taking the truck out of 4wd to 2wd, I recommend the same, shift to neutral, select 2wd, back truck up, shift back to drive and check. Its entirely possible that your hubs need maintenance (they're often overlooked) but hopefully this will get you going. Please let me know if thus worked or if I can offer other suggestions. Good luck!

Jan 18, 2012 | Chevrolet 1500 Cars & Trucks

1 Answer

1987 ford bronco ll won't go in to 4 wheel drive when i push the 4 wheel drive button


could be a faulty switch or the lock out on the diff may be bad, In woudl start at the switch first and work my way down.

Dec 31, 2010 | 1987 Ford Bronco II

1 Answer

4 wheel drive light flashes, wont lock in but transfer case seems to lock just not differential


You didn't specify which vehicle model you have, but most gm vehicles use vacuum to activate the 4wd system. Check all the vacuum lines you can locate for loose or disconnected line, cracked or gummy feeling lines. If you have the push button 4wd, listen for an audible click when you push the 4wd button. If you don't hear anything, the push button assembly may need replacing. If you did hear the click, then look under the battery tray for a loose vacuum line. Most gm 4wd problems are vacuum related.

Dec 25, 2010 | Chevrolet 1500 Cars & Trucks

1 Answer

Bronco locked in 4 wheel drive. light on instrument panel stays on.


can't get the 4 wheel drive 2 engage when i push the buttom 2 engage it

Nov 11, 2010 | 1987 Ford Bronco II

1 Answer

4wd wont engage on my 86 bronco II. Push button 4wd isn't working and I can't find the fuse (inline) to check if it's blown.


Engage the 4wd and go underneath and tap the 4x4 motor to engage it, it is probably just stuck. More than likely its not a fuse.

Aug 15, 2010 | 1986 Ford Bronco II

1 Answer

Firing order diagram for 88Ford Bronco II V6 2.9


For the 1988 Ford Bronco II 2.9L V6:

Firing Order:
1-4-2-5-3-6

Cylinders:
......(back)......
|..3..|......|..6..|
|..2..|......|..5..|
|..1..|......|..4..|
......(front)

Distributor:
....1.....4..(+)-screw
................
6......o.....2
................
(+)3.....5

Let me know if this helped or if you have additional information or questions. Feel Free to contact me at FixYa.com!

Apr 05, 2010 | 1988 Ford Bronco II

2 Answers

1986 s10 4x4,transfer case,loose manual shifter


theres locking pins that hold it in gear that kind of resemble a door latches it`s my guess that there springs are no good and they just are staying open allowing it to slip back out of gear.

Jan 01, 2010 | 1987 Chevrolet S-10 Pickup

2 Answers

4 wheel drive doesnt work.


Has this Jeep been modified at all?
It sounds like the shifter cable was reinstalled backwards.
Specifically the 4-Low "Not Climbing Well". 4-Low should give you the best torque and hill climbing ability.
Do you feel any "Binding" in the steering wheel (difficult to turn)?
Remember a Jeep uses real driveshafts and differentials to give you 4WD - you cannot engage 4WD or 4-Low on dry hard surfaces. It needs a little bit of slip between the wheels for turns.
Check you're fluids too.

Jul 11, 2009 | 1992 Jeep Wrangler

2 Answers

The 4 wheel drive doesn't work in my 89 Ford Bronco


The sound is not coming from the glove compartment, it is coming from the panel behind the drivers seat, that's where the relays and computer are located.
The relays click and apply power to a transfer case motor.
The motor attempts to turn a shaft that engages the front drive shaft.
When the computer thinks the shaft has NOT turned it tries again.
It will try three times then quit, figuring the shaft has not turned.

Get someone to crawl under the vehicle and engage the 4WD (just turn on the ignition- do not start the engine) See if they can hear the motor attempt to turn the shaft, it will make a clicking sound.
If not the connections or the motor may be bad.

I have found the most probable cause is the relays on the control board.
If you are technically adept --
you can remove the small side panel from behind the drivers seat and remove the control board. (remove the power plugs first)
Clean the relay contacts and bend them a little to give them more 'wipe' to keep them clean longer.
Put it back in and turn on the ignition.
Then push the RESET button on the side of the board.
Try the in / out 4WD a couple of times. If it doesn't work turn off the ignition, turn it back on and push the reset button again.

Oct 16, 2008 | 1989 Ford Bronco II

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