Question about 1990 Ford Bronco

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I forgot to put my truck in reverse to disengage the 4x4 on push button 4x4 1990 Ford Bronco 2 and now it will not go into 4 wheel drivem, I push the button but the light does not come on, have I torn

It worked fine before this.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 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.

Posted on Oct 27, 2008

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SOURCE: 1999 ford ranger 4x4 no 4 wheel drive

solenoid on back of transfer case is defective or no power to it /12 volts

Posted on Dec 22, 2008

  • 2 Answers

SOURCE: 97 ford f150 w'ont come out of 4 wheel high

Me and a couple guys at work had the same problem. My brother who is a ford mech said it is a vacuum solenoid that is located on the passenger side fire wall. It should have 2 vacuum tubes and a small wire harness connected to it. On mine I turned 4wd on and nothing happened. I unhooked the solenoid and it engaged then I hooked it up and unhooked to and it was able to disengage. They only sell these soleiods at the dealers though for about $40. Ive looked all over the net and found nothing. But check those first cause if its no them then its either the hubs not disengaging or solenoid that engages the transfer case. Hope this helped.

Posted on Apr 02, 2009

  • 30 Answers

SOURCE: 02 Ford Explorer XLT 4x4 High light flashes and

I had same problem on my 2002 explorer. Its either the computer module, or the electric solenoid on the transfer case. In my case it was both. The computer module I had done twice in 14 months.

Posted on Jul 04, 2009

ZJLimited
  • 17970 Answers

SOURCE: how you take out the oil pan on 1990 ford bronco

Ford Pick-ups and Broncos 1987-1996 Repair Guide
Fuel Injected 5.0L and 5.8L Engines - Oil Pan

  1. Drain the cooling system.
CAUTION When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.
  1. Remove the bolts attaching the fan shroud to the radiator and position the shroud over the fan.
  2. Remove the upper intake manifold and throttle body (see ).
  3. Remove the nuts and lockwashers attaching the engine support insulators to the chassis bracket.
  4. If equipped with an automatic transmission, disconnect the oil cooler line at the left side of the radiator.
  5. Remove the exhaust system.
  6. Raise the engine and place wood blocks under the engine supports.
  7. Drain the crankcase.
CAUTION The EPA warns that prolonged contact with used engine oil may cause a number of skin disorders, including cancer! You should make every effort to minimize your exposure to used engine oil. Protective gloves should be worn when changing the oil. Wash your hands and any other exposed skin areas as soon as possible after exposure to used engine oil. Soap and water, or waterless hand cleaner should be used.
  1. Support the transmission with a floor jack and remove the transmission crossmember.
  2. Remove the oil pan attaching bolts and lower the oil pan onto the crossmember.
  3. Remove the two bolts attaching the oil pump pickup tube to the oil pump. Remove the nut attaching the oil pump pickup tube to the No. 3 main bearing cap stud. Lower the pickup tube and screen into the oil pan.
  4. Remove the oil pan from the vehicle.
To install:
  1. Clean the oil pan, inlet tube and gasket surfaces. Inspect the gasket sealing surface for damages and distortion due to overtightening of the bolts. Repair and straighten as required.
  2. Position a new oil pan gasket and seal to the cylinder block.
  3. Position the oil pick-up tube and screen to the oil pump and install the lower attaching bolt and gasket loosely. Install nut attaching to number 3 main bearing cap stud.
  4. Place the oil pan on the crossmember. Install the upper pick-up tube bolt. Tighten the pick-up tube bolts.
  5. Position the oil pan to the cylinder block and install the attaching bolts. Tighten to 10-12 ft. lbs. (13-16 Nm).
  6. Install the transmission crossmember.
  7. Raise the engine and remove the blocks under the engine supports. Bolt the engine to the supports.
  8. Install the exhaust system.
  9. If equipped with an automatic transmission, connect the oil cooler line at the left side of the radiator.
  10. Install the nuts and lockwashers attaching the engine support insulators to the chassis bracket.
  11. Install the upper intake manifold and throttle body (see ).
  12. Install the fan shroud.
  13. Fill the crankcase.
  14. Fill and bleed the cooling system.

If you need see images about this theme, can visit autozone.com (free register).

Hope helped (remember rated this help) Good luck.

Posted on Dec 02, 2009

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It could be the switch, a fuse, a relay, the motor that engages the transfer case (very common problem) or the transfer case itself. Disconnect the motor arm from the transfer case and see if you can move the shift rod by hand. If you can then you know the transfer case is probably OK and you can test from the motor back to the switch.

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I'll bet you've also got auto locking hubs. If you do, replace them. If you don't, you might have a bad transfer case.

Dec 21, 2008 | 1988 Ford Bronco

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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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