I have a 2001 Suburban and I know that there was a recall on the Half shaft...mainly for noises, but I would look online for a recall list for your particular year. The Half shaft is what your stearing wheel is hooked to under the hood. Also, I would check the shocks and other stearing components.
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Hi Nicholas, Im AL the owner of Big As Auto Repair.
FRONT WHEEL SPEED SENSOR
Raise vehicle on jack stands or centered on a frame contact type hoist. See Hoisting in the Lubrication and Maintenance section of this manual, for the required lifting procedure to be used for this vehicle.
Remove the tire and wheel assembly from the vehicle.
Remove the speed sensor cable routing bracket Speed Sensor Cable Routing Brackets from the steering knuckle. Remove the wiring harness sealing grommet retainer and speed sensor routing bracket from the inner fender.
Remove bolt Speed Sensor Head Attachment To Steering Knuckle attaching the speed sensor head to the steering knuckle. Then remove speed sensor head from steering knuckle. CAUTION: If speed sensor head locating pin has seized to the steering knuckle, do not attempt to remove speed sensor head by grasping with pliers and turning. This will damage the speed sensor head. Use only the following procedure.
If speed sensor head can not be removed from steering knuckle by hand, the locating pin on the speed sensor head has seized to the steering knuckle do to corrosion. Remove speed sensor head from steering knuckle using the following procedure. Remove disc brake caliper from steering knuckle, and remove brake rotor from hub/bearing assembly. Then insert a pin punch through hole in front steering knuckle Speed Sensor Head Removal From Steering Knuckle and tap speed sensor head locating pin out of steering knuckle.
Don't know where you came up with this one
D0131 , No such code .
Now if you mean a P0131 it's for a O2 sensor
DTC P0131 HO2S Circuit Low Voltage Sensor 1
Front Steering Position Sensor Circuit
The electronic brake control module (EBCM) receives multiple direct inputs from the steering wheel position sensor. These circuits include, two digital square wave input signals A and B. Phase A or B should toggle high and low every 2 degrees of steering wheel rotation. . The EBCM also receives one analog steering wheel position input on the steering wheel position sensor signal 1 circuit, and is compared to the digital circuits for fault detection. The analog portion of the steering wheel position sensor is supplied a 5-volt reference and low side return circuits from the EBCM. Ignition voltage and ground circuits are supplied directly to the digital portion of the steering wheel position sensor.
Variable-assist power steering: A power steering system that uses valves and speed sensors to vary the amount of steering assist according to engine or road speed. At slow speeds more steering assist is delivered and steering the wheels is easier; necessary for parking, etc.. At higher speeds, steering assist is reduced and more steering effort is required to steer the car, giving the driver greater feel of the road. Also known as Speed-sensitive power steering.
Loss of current to the magnetic coils would cause a loss of power assist at low speed. Coil resistance can be checked with an ohmmeter, and should read about two ohms. An infinite (open) reading indicates a bad coil (requires replacing the rack since the coils are not serviceable). Checking for shorts between both sides of the coil assembly and rack housing is also recommended.
Tire and wheel assemblyCaliper and rotorWheel speed sensor and brake hose mounting bracket bolt from the steering knuckleElectrical connection for the wheel speed sensorFront drive halfshaft assembly on four wheel drive modelsHub and bearing assembly mounting boltsHub and bearing assemblyO-ring seal from the steering knuckle bore (2500 series)
Clean and inspect the O-ring seal
Clean all corrosion or contaminates from the steering knuckle bore and the hub and bearing assembly.
Install the O-ring to the steering knuckle (2500 series).
Lubricate the steering knuckle bore with wheel bearing grease or the equivalent.
Install or connect the following:
Hub and bearing assemblyHub and bearing assembly mounting bolts. Tighten the bolts to 133 ft. lbs. (180 Nm).Front drive halfshaft assembly on four wheel drive modelsElectrical connection for the wheel speed sensorWheel speed sensor and brake hose mounting bracket bolt to the steering knuckle. Tighten to 106 inch lbs. (12 Nm).RotorTire and wheel assembly.
You can go to autozone.com and register for free online repair manual with everything you need.
there is a sensor at the bottom of the steering wheel, this senses the speed of the vehicle which in turns allows the steering to be easy at idle and firmer at higher speeds. sometime this sensor will go "open" at higher speeds which will cause the steering wheel to feel like it "drops" at times.