Taurus 1989 3.0l, need to know where the starter is located so husband can replace it.

There are several options.
You may have a solenoid mounted on the starter, or on the fender near the battery. You may also have a starter relay in the fuse box.
If the starter is not getting power, you may also need to check the neutral safety switch.

Its not that hard. First of all disconnect the Negative battery,And All you need to do is locate the starter and locate the bolts that hold it usually 14 Mm bolts. take the wires off and label them where they go to make it easy for you to put them back again, put in a new starter in and sometimes you need to shake it little bit to make it slide in, and put back the wires and tighten them then start your car and good luck.

the starter soleniod is on the starter, if you look under the front of the car at the motor wher it meets the trany you will see the starter, its best to replace the complete unit, this is not like older fords where there was a soleniod up on the wall and starter on the motor, this is all on one unit, heres a diagram pictur to help you , hope the info helps , good luck.

Because of the Variety of mounting methods there are 2 to 4 bolts that should be visible as you look at the starter itself. Not counting the wiring connections. If this a sideways mounted motor with the Starter mounted on the front of the motor there will be 2 bolts holding it in place. If the motor is mounted regularly with the transmission extending under the vehicle the starter in on the rear of the motor near the firewall and will have up to 4 bolts holding it in place but most likely no more than 3. I would recommend getting a Haynes repair manual on the vehicle for more detailed instruction on removal and installation. This manual or a Chilton's manual are both available at the major Auto Parts stores and are fairly inexpensive.

When you go to start the engine you are actually sending power from the ignition switch through a 20 amp fuse [crank fuse] then through the Park/Nuetral safety start switch and finally to the starter relay [located at the center rear of the engine compartment] This relay then sends a more powerful current flow down to the starter solenoid located on top of the the starter which then closes and allows full battery voltage from the large battery cable to energize and spin the starter. I don't think I've ever had to replace a starter relay on these but have replaced a large number of starters with bad solenoids and bad Park/nuetral switches. The "crank" fuse could also be bad but that is also pretty rare.

That is the (Differential Pressure Feedback Exhaust) - e.g. EGR Valve. You shouldn't have any trouble finding it. There is usually a metal tube from the exhaust manifold going to it,as well as one or two vacuum hoses.
It has to also, direct exhaust gas into the intake,so there is your key.

I believe on the 95's, the starter relay is located within the CCRM (a large black box that is located next to your battery). The starter relay itself is not replaceable, you have to replace the entire CCRM (Constant Control Relay Module).

The starter solenoid is attached to the starter unlike the older Fords. You will have to remove the splash guard to gain access to the starter. It is located on the front side of the motor.

your starter is down in front of the vehicle near the radiator i know this cause i replaced on on the 04 model just jack up the car crawl under it and it will be right in front of you

The starter is bolted to the engine block with 2 long bolts,it faces the radiator,or front of the car,but is located down low,better seen from under the car.Front of car,behind the chassis/frame in front of it.It bolts to the block exactly where the transmission bellhousing is located,actually,at the rear of the engine,but the engine is mounted transversely.Disconnect negative battery terminal before beginning work.