My 4 wheel drive stopped working on my 2003 ford sport track. any suggestions?

To rule out a broken timing belt, remove distributor cap and crank intuition. If the rotor is not rotating, it's the belt.

have the fault codes read
possible
alternator belt broke
battery terminals loose
ground wire not connected

Wayne, I would start with the brake wheel sensors, most likely the front end- I would start there first.
Has this vehicle had brake pads replaced, or had recent brake work? If so, what was done, and by who? (home job, or brake shop?)

You only have one bolt to remove the speed sensor
& 4 bolts that hold the bearing hub on

Not to be hurtful here,but instructions?
I don't see that helping general mechanical
aptitude

it is most likely an automatic awd, 4 hi is full time 4 wheel drive, 4 lo is full time 4 wheel drive but at a very low gear ratio and should not exceed 25 mph or could cause damage. and DO NOT shift into 4 lo while vehicle is in motion. Auto is a 2 wheel drive but automatically engages into 4 wheel drive under heavy acceleration.

give these websites a try www.alldatadiy.com and www.autozone.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your truck wish you the best of luck Michigan Man.

sounds like maybe front drive shaft u-joints or front half shaft axil's worn.

most likely the 4x4 shift motor is not working need to bring it to a repair workshop. rear window regulator sometimes get stuck try someone to push the switch while you tap the motor lightly

The ford explorer sport track. Will have a short either at the plug of the multi-function switch or 6 inches down where the column bends the wires during tilt.

the vacuum tube that operates the transfer case is stopped up or pinched