My 89 bronco ii is standard and the lights next to the buttons for 4x4 and low range seem to be lit but nothing happen when i click the buttons. and I've had it in neutral with my foot on and off the brake. I've tried it with the ignition off(on prime) and on and i don't hear any noise under the car or in the car when i click the buttons
ON LEVEL GROUND
With the transmission selector in "park", start the motor.
With your foot on the brake pedal (steady-constant pressure), move the transmission selector gear to neutral- then turn the 4 X 4 selector knob to 4-wheel drive high. Wait for the 4 X 4 engagement.
Once it is in 4-wheel drive high, with the transmission selector still in neutral, quickly pump the brake peddle twice, keeping you foot on the brake pedal on the second pump, turn the 4 X 4 selector knob from high range to low range. The transfer case should then change from 4-wheel drive high to low.
Electronics being what they are, you sometimes have to repeat the process. You may even have to inch forward or backward.
[I have an '01 Excursion and an '05 F250 with 4 X 4 on the fly...I miss my '97 F250 with the manual 4 X 4 shift on-the-floor!]
Anyway, check the fuse panel for any blown fuses.
Double check to make sure that the problem is not just blown 4 X 4 lights on the instrument cluster. With the nob turned to 4-wheel drive, have a second person- a spotter, check to see if the drive shaft to the transfer case is moving. If it isn't, you have to delve into the troubleshooting process.
Check the solenoids, vacuum hoses, vacuum actuator, and transmission range sensor on the transfer case. .
SOURCE: 2000 Explorer - 4x4 won't engage
run an obd 2 scan at autozone or advance to get the codes on why its not switching.
SOURCE: low range 4x4
4x4 low function will only engage when vehicle is stopped in neutral with foot on brake. try that
SOURCE: 4x4 on 89 bronco ii won't engage
undo the rear interrior side pannel behind the driver seat, its on the LEFT side wall behind the interior panel. It might be that one of the Relays has gone bad, and thats where they are. around or near the seatbelt mechanism.
SOURCE: have an 89 Bronco II automatic 4x4. Reverse
Check to see if the fluid is at the right level. Also, smell it, if it is burnt smelling, you may try to change the fluid and filter. That may help your situation.
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