Yeah my 1991 Ford Tempo does the same thing it starts and idles no problem but if i stop at a gas station and leave it running and come back out to the car i put it in reverse or drive it dies every once in a while
If one side of the brakes is locking then check the caliper. If both sides are locking up then there could be a master cylinder problem. The brakes could also lock up to compensate for the rear brakes not working properly.
put a dwell tester on it and possibly add water to it by prying off the top small compartment and add it there . then if the battery isn't the problem disconnect the positive battery terminal from the battery and if the car dies it is your alternator
Since no one should really want to disconnect their brakes, this question might be asking how to repair / replace rear brake pads or shoes. Assuming that to be the case, See "Related Questions" below for more about rear drum and disc type brakes on Taurus / Sables.
The starter on a vehicle is the part that will help trigger the ignition to start the car. The starter in a 1991 Ford Tempo looks like most starters. It is small metal piece that is approximately 2 inches long. You can purchase these from a car parts store or even on eBay.
On my wife's 1993 Ford Tempo,when you remove the transmiision pan(after draining fluid), the filter can be seen just inside. It looks like a bag and has a female end which slips over whatever the part is called that it is attached to.