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Re: abs braking system
Go to ford.com and scroll over "owner services", when the menu comes down, click on "customer support". type in "please send build sheet for Ford F-350 Super Duty XLT (VIN # :XXXXXXXXXXXXXXXXX ) to (enter email address here).
Note: the vin number is on the diver's side of the dashboard and can be read through the windshield. it is 17 digits long.
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The ABS system has nothing to do with replacing the pads and rotors, the abs is anti braking system the system is designed to keep the wheels from locking up when brakes are applied hard, . you will first need to have the abs computer scanned for codes, the computer will pick up a problem in the system and turn off the system and then turn the abs light on and last it stores a code in the computer, the code will tell you what part of the system has failed. the codes or code are very helpful in pinpointing the problem. the abs system contains speed sensors on all four wheel and a anti braking module and computer, the most common reason for a abs code is a bad wheel speed sensor. this is the most common problem seen, the code for example may read something like this poXXXXX right front speed sensors.again start by getting the codes,good day.
The ABS works according to what the speed sensor tells it. The sensor may be bad or it senses a broken tooth on the tone wheel (the sensor reads these teeth on the tone wheel, found in the hub).
You will still have Brakes, but not the ABS. You can switch the sensors from the good side to the bad to see if it is in fact the sensor itself. Good luck!
There are ABS wheel speed sensors on the front wheels behind the hubs. It is possible if the hub where replaced either the pick up ring mounted to the hub itself was not installed or might have purchase non abs hubs or they just did not switch the wheel speed pickup ring on the new hub. Another thing could be either the wheel speed sensors are mis adjusted or when they replaced the hubs they hung the spindle by the abs wire and either pulled it out of socket or messed up the wires internally. Here is a basic abs system http://www.ehow.com/how_8511860_diagnose-abs-brakes.html if you have any other questions please let me know. Also please leave good feedback.
Ok, there are sensors on your front wheel hubs. This could easily cause the abs light to turn on. The loud noise could easily be your wheel hub going bad. Easiest way to check, jack up the front of the truck, grab tire, shake back and forth and up and down. Same amout of play each way? You're wheel hub is bad.......
Each wheel has a sensor on it which tells the abs system that your wheel is rolling and lets the cpu know if there is any difference in speed between them. Most likely you damaged one or more of them when you did the work. Check the wiring going to the sensors, if it's not that, then you either need to bring it to a dealer or live without abs and traction control. (abs and traction control work from the same sensors).
Did you bleed the system after doing the brakes? and since you din't say abs light I assume you mean the brakes are acting erratically. If you bleed the breaks first after that try it and if it still does it make sure you have the correct rotors and pads.
Raise the vehicle. Refer to Vehicle Lifting in General Diagnosis.
Remove the wheel and the tire. Refer to Tire and Wheel Removal and Installation in Wheels, Tires and Alignment.
Remove and support the brake caliper. Refer to Brake Caliper Replacement (Front) or Brake Caliper Replacement (Rear) in Brakes.
Remove the brake rotor. Refer to Brake Rotor Replacement in Disc Brakes.
Remove the ABS sensor wire connector.
Remove the four bolts from the control arm.
Remove the hub and bearing from the control arm.
Remove the brake shield from the control arm.
Clean the control arm face and the bore before installing the hub and the bearing.
Notice: Refer to Fastener Notice in Service Precautions.
Install the brake shield and the hub and the bearing to the control arm with the four bolts. Be careful not to drop the hub and the bearing, as it could be damaged. Reconnect the ABS sensor. Tighten the hub and bearing bolts to 70 Nm (52 ft. lbs.).
Install the brake rotor. Refer to Brake Rotor Replacement in Disc Brakes.
Install the brake caliper. Refer to Brake Caliper Replacement (Front) or Brake Caliper Replacement (Rear) in Disc Brakes.
Install the wheel and the tire. Refer to Tire and Wheel Removal and Installation in Wheels, Tires and Alignment. Tighten the wheel nuts to 140 Nm (100 ft. lbs.).
A common cause for an ABS light is a broken wire to one of the front wheel speed sensor, or the sensor itself is bad. The sensor is part of the hub/wheel bearing assembly. A problem in the ABS causes the traction control system to be dissabled, thus turning on that light.