If You want to engage 4 wheel drive on a Ford F-250 the first thing that You will need to do is stop the truck. Once the truck is stopped You can put it in neutral to remove the connection to the transmission. Once the vehicle is in neutral You can use the drive selector knob in the truck to choose froM2wd, 4wd high, or 4wd low depending on the conditions. 4WD high is designed to be used at highway speeds and is good for situations like snow or dirt roads. 4WD low is designed to be used at low speeds off road and will give more torque to the wheels to help You get out of tough situations.
Diane M.
April 10, 2020
You can engage the 4 wheel drive on your f250 by turning your wheels clockwise to lock and counter clockwise to unlock.
BettyWhite
December 2, 2020
You don't turn your wheels. You turn the knob inside the cab from 2H to 4H while you are moving. If you are not moving, you then have to exit the truck and manually turn the hubs from auto to lock. It has nothing to do with turning the "wheels."
Uhhh dont listen to user BettyWhite On an f250 the manual hubs dont say lock and unlock they say lock and auto... It does not matter what position the hubs are in or weather or not ur moving the auto uses a vacuum to hold the cv axles in place when 4wd is engaged and allows for tight turning while in 4wd withoutany binding by leting the cvaxles pull in and out of the hubs temporarily going out of 4wd and then reengaging when straighting back up... The lock is for if that vacuum in the hubs has a leak, when the vacuum leaks its qont be able to securly hold the cv axle so ford left u a second option for if the vacum fails but u need 4x4 when u switch the hubs to lock position you can still engage 4wd without stoping the only difference is that there is now mechanical partspinning the cv axle into place when 4wd is engaged so the only downside is that turning in tight areas can cause the hubs to bind up and cause the steering wheel to pull in and out of the turn. No qorries tho because it will only bind when u are going slow unlessyou plan on taking full steering lock turns at 50 mph. U will not damage anything when they bind just siply stop and reverse a couple feet and make a 3 or more point turn or disengage 4x4 while navigateing parking lotsand parking garages. If your hubssay lock and unlock then u do have to turn it to lock to engage 4x4 and you do have to stop only if u have the floor shifter If u have the switch or button on the dash then u have whats called shift on the fly meaning u do not have to stop to engage 4x4.
If u are going into 4 hi then you do not have to stop regardless of which transfer case u have. I have a truck with the manual shift lever and one with shift on the fly both will go into high very easily while moving. Just make sure to completely stop if going into low range.
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