Or, he may hear some grinding noises when he shifts to four-wheel drive and may think something is wrong with the transfer case or front differential. If the body assembly will not fit, recheck the alignment of all the components. Mud, rust or worn parts inside the hub can prevent the mechanism from sliding in and locking the hub. When the hublock is removed, the O-ring seal should be checked for damage. The wheel barrel is one of the most important parts of your Ford.
If a vehicle has been equipped with a locking front differential such as a Detroit Locker , some type of manual or automatic locking hub is usually required. This article applies to the Ford. Reinstall brake caliper bracket and brake calipers. If you hear a popping or banging noise while driving in four-wheel drive, one or both hubs may be slipping or broken. Then start the engine and place the transfer case in four-wheel drive and the transmission in drive. For the same reasons that prevent the hub from engaging, a hub may also fail to release. The locking mechanism inside an automatic hub is sort of like a one-way clutch.
For normal driving, the hubs should be cleaned, inspected and lubricated every two years or 24,000 to 30,000 miles. Step 2 - Unbolt caliper from brake disc Remove the caliper and unclip the rubber brake line. If there is then you have found the problem. Firmly pull the wheel bearing off the front axle. Reinstall the 13mm wheel bearing center nut and bearing cap.
The front wheel bearings are replaced with the entire hub assembly, we don't have the exact model info but we do have access tot he Ford Explorer instructions, which are pretty much exactly the same procedure with minor differences. Bolt torque on the new hub nut is 285 Foot pounds, you do need heavy duty tools as you will see. There is a way for you to test the sensor yourself by using a multimeter set on volts, you jack the vehicle up at that wheel, install a vehicle stand to support the vehicle to be safe, disconect the wheel speed sensor and probe the two wires into the sensor, spin the wheel by hand and a small amount of current will be produced meaning the the sensor is working and the wheel bearing is installed the correct way, you can also do a continuaty test on the sensor by switching the multimeter onto ohms, but be very carefull, if this sensor has three wires you cant do the continuaty test because of the integrated circuit in the sensor, the three wire sensors opperate on a voltage from 5Volt and it would be destroyed by the multimeter opperating on 9Volt. Retensioning the bearings correctly is extremely important. If the driveshaft is not turning, the vehicle is going to need repairs to the transfer case.
It's okay to use a screwdriver or a shim of some sort to get leverage, but be careful to not break it. Fixing the bearing is important and if not repaired, your wheel may begin to separate from the vehicle or create issues when steering. This article applies to the Ford F-250 and F-350 Super Duty. Starting with model year 1994, Ford switched to Warn Automatic Hublock Model M350C on Dana 35 Axle in the Explorer and Ranger. Automatic hubs are used on many 4×4 trucks to disengage the front wheels when four-wheel drive is not needed.
Replace all of the wheels by tightening the lug nuts. Put the transmission in park, set the parking brake and raise the chassis so one of the front wheels is off the ground while the other is still on the ground. Jan 07, 2011 do you live in high salted areas? With this setup, the hub on the opposite side remains locked and the axle continues to turn with the wheel. Related Article: - Ford Trucks. This can also come from different size tires on the car but I'm sure you know they should all be the same size.
First, the plain steel thrust washer. A locked differential is great for serious off-roading because it keeps both front wheels turning regardless of traction. The Model M350 can only be replaced by Model M350 service parts. If the hubs are noisy or are failing to disengage, Ford recommends replacing both locking hubs. Dirt gets into it and binds it up. The axle shaft should now turn with the wheel if the hub is locked. Learn how to replace one of the leading causes of wheel noise here! Posted on Jun 27, 2009 That is a sign of a wheel bearing going bad.
Try turning the wheel by hand again. Another way to check the hubs is to raise the vehicle on a frame contact lift so all four wheels are off the ground. This may occur if one of the hublocks fails to disengage. Use the same instructions for the inner and outer bearings. Don't forget to reinstall the bolts holding the wheel bearing to the steering knuckle. Includes an internally-mounted sensor that protects against debris, corrosion, thermal shock, and other hazards that threaten externally-mounted sensors. There are a number of automatic hub designs, though, and not all are capable of engaging while the vehicle is in motion.