Tapping on back wheel

It is a wire that looks like a spark plug wire coming from the back side of the wheel and is attached by one or two bolts on the sensor unit. Normally on the driver side.

If the car is front wheel drive a puller is required to dismantle the hub a rather involved job better left to a mechanic .If rear wheel drive do the following. ( Applies to front wheel drive also.) Chock rear wheels,loosen front wheel nuts, jack up car, fit safety stands,remove wheel , remove grease cap from axle. remove split pin or locking nut on axle ,Remove hub, with a punch drive out the grease seal ,the tapered cone bearings can now be removed, the 2 bearing cups still in the housing will have to be pressed out ,all old grease has to be cleaned out. the new cones must be repacked with high temp bearing grease . tap in the seal with the lip facing inwards , slide on the hub fit the outer cone to the axle , the spacer and nut goes on next, tighten the nut to seat the bearings , spin the hub make sure its free to spin, back off the nut one eighth of a turn fit a new split pin or lock tab. fit grease cap and road wheel.

That code should be left rear(Drivers side rear) wheel speed sensor short to ground, Check to see if wiring has worn thru and is contacting metal some place. GM had problems with water getting into wiring harnesses in rear causing shorts.

chock front wheels so car cant move jack up rear of car see if you can turn the wheel easley remoave tire .look onout side of drum on stud for hokding clips ,you can take them off with a screwdriver or just pry them off or turn them off back off adjuster tap lightely on drum and it should come off

Sounds like you may have a bad blower motor resistor/module or blower motor. It is located under the drivers side of the dash near the blower motor.

You can check out this how to tip.

http://www.fixya.com/cars/r6571076-blower_motor_not_work

you can also try tapping the bottom of the blower motor with a small hammer or the handle end of a large screwdriver. Tap is the key word. Make sure the key is in the on position and the blower motor speed switch is set to any speed. If it starts to work than the blower motor is bad.

As far as the rear it sounds like you definitely have a bad blower motor resistor. It can be accessed by removing the passenger side rear trim panel. The resistor will have a few wires going to it and will be held to the HVAC unit with two screws.

If you have any more questions just ask. I will be happy to help!

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

the brake pads have a wear indicator as the pads wear the indicator will tuch the brake rotor and make a high pitch shriek, so you need new brake pads.

On some vehicles you may need to slightly pry the hub off. This can be done with a screw driver or the vehicle may have a lug wrench that came with the vehicle. If you are trying to replace the lug studs, then you will have to take the wheel off. Tap the broken stud out and replace it with the new one.

ABS ring at front fits on CV joint and should come fitted on a new joint. if not fitted, can be tapped on lightly and evenly using a hammer and punch. rear ABS ring fits inside brake drum. when changing discs/drums ring must be tapped off with punch placed through wheel bolt holes to back of ring. to refit tap on to inside of drum.

Sounds like a broken bearing. If your wheel is beginning to wobble it will make contact with the brake shoes and this will them very hot to the point of giving off a burning smell

You have a seperated tire or a loose wheel. A seperated tire happens when the tire's plys seperate from each other, this makes the car bounce or shake at low speeds. High speed vibrations are caused by unbalanced wheels. Vibrations under braking are the rotors.