How to replace a ...

express 1500, 2500 or 3500
USA car? or not?
ABS?????
wws= wheel speed sensor.
sure and is in the manual to read at any time.
AWD OR RWD CAR, ALL WHEEL OR REAR WHEEL DRIVE?

AT THE REAR OF THE CAR AT DISKS. IS FLEX CABLE
there 1500 there is a large flex cable, this is emerg. brake cable
there is brake hose flex rubber hose, this is not it either
then the small wire elect cable (with snap connectors) this is it.

same on most cars made, 4 speed sensors, 2 front 2 rear
all look kinda the same but are not.exactly.

sounds like the anti lock pump is gloing out

air in the lines- need bleeding, and /or replace the brake light it may affect your gauges.

You likely have a connection problem with one or bolth front wheel speed sensors im not saying they need to be replaced . However the connections get a lot of water and road salt blasted on them witch tends to corroud the connections . This will make the ABS light come on can't say for sure but its a common cause of ABS light problems on older vehicles if everything seams to be working OK . Try cleaning the connections on all of the contacts for the front wheel speed sensors

I'd first make sure the new pads are the correct size. Doesn't happen very often but maybe the parts person gave you the wrong size pads ( for the smoking problem). As for the ABS light, most newer cars will throw out codes if you wait too long to change them out, I would contact a chevy dealer or search online about reseting the code (light).

If the speedometer doesn't work, I usually look for a VSS or vehicle speed sensor, but on the Ford Escape, the Wheel Speed Sensors detect speed.

The ABS light may be on if there isn't a signal going from the speed sensors to the ABS module, or the module is bad, itself.

I don't know about the 4 wheel drive light blinking, but it could signal trouble in that system, as well, as far as the electronic control of 4 wheel drive or the Transmission Range selector Also, does the transfer case have enough fluid in it?

Transfer Case NOTE: Repair of the transfer case is limited to seals, gaskets and output flange on automatic transaxle vehicles only. In vehicles equipped with a manual transmission, or if any of the geared components, tapered roller bearings, case cover or internal shafts fail, a new transfer case must be installed.
NOTE: The transfer case is sealed from the transaxle and has its own oil pump. The transfer case uses SAE 75W-140 synthetic gear lubricant and holds 12 ounces. The transfer case fill plug is located on the housing cover.

The speedometer problem could also be a bad speedometer gauge, but that is rare, these days and is not indicated by the ABS light being on that says that maybe a signal has been lost to the wheel speed sensors themselves.

I hope this helps to understand what may be going wrong, even though you did the right thing by changing the wheel speed sensors.

Oh, by the way, I would scan the OBD-II computer with an ABS Brakescan tool to see if any particular wheel is still not reading or sending speed data to the ABS module.

May I suggest the Actron Brakescan tool which covers most domestic vehicles from 1996 to 2005?

Good luck on this repair.

have u had the dealer test the system for trouble codes?

yup sensor it is. there is one on each wheel, the fronts can be corroded or bad, and the rear just fail and are part of the whole wheel bearing assembly. you need to take to a shop that has the ability to drive,record and graph the sensor outputs to tell which one/s are at fault. you need a scan tool to do this since the car must be rolling on all 4 at speed to test. good luck!

If your ABS light is on as well, have a shop scan it (it requires a special scanner). If it's just your Trac light without ABS, it is most likely a sensor under the hood at fault. If you are getting a check engine light as well, get the codes read!
This happened to me without an ABS light and it was the upstream O2 sensor. The reason it throws the Trac light is because if any components that the traction control uses (ignition, fuel) are affected by a bad sensor, the PCM shuts down traction.
In fact, when I replaced the O2 sensor, a handful of other little issues resolved as well.
If you do have an ABS light on, it could very well be a wheel speed sensor.

I recommend checking the gaps against specification (sorry I don't know what the spec is, check with a local dealer) between the tone wheel and the sensors, and making sure that the wheel bearings do not have excess play. The bearing play can mean that the gap changes when turning a corner, either too much gap or not enough, and the sensor gives a different output from the other 3 wheels which the abs computer thinks is wheel slip and the abs is activated. This may only apply to the front sensors, your vehicle will likely just have one sensor in the rear, mounted on the diff head, but if it has 4 sensors then check out the axle endfloat in the rear also.

Hope this helps,
Mark.