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Hi, All! Just came across this site... My husband & I are looking at purchasing a '96 explorer (86,000 miles). My husband test drove it & tried out the "shift on the fly" 4-wheel drive while he was driving. It didn't engage until he stopped. Is this something we should be concerned about? We don't care about not being able to "shift on the fly", we just don't want to have that cause more problems later.... Any input would be appreciated.
My 96 Limited had the same problem. It ended up that the sensors on the 4x4 were bad. I had the dealer replace the sensors including the motor that engages the 4x4 and the problems went away. It was around 580.00 dollars. You might not have toreplace the motor in which case the sensors run around 100.00 plus labor. Hope this helps.
I am not sure of the 92. The 96 uses sensors for the 4x4. Once engaged power is applied to the front wheels when the rear tires are slipping. Once the sensors detect that both front and back are at constant speed the front wheels disengage. When the car is in motion and you shift to 4x4 and the computer thinks that the front and rear wheels are not at the same speed, it will not engage the transfer case until you come to a stop. Once at a stop the 4x4 engages but with the sensors not working properly, then the wheels are always powered and you car will make noises and jump on tight radius turns.