06 Frd Rngr linkage and witper motor.

I looked at info for your security system, it is starter motor disable. I didn't see 06 ford Taurus in my database, so I looked at 05.
Battery has a full charge and battery connections all good?
We can usually do some tests to see if starter motor will crank the engine, but, if the security is the problem, it still won't start.
You can check for applicable trouble codes? Try a different key?

Remove the nut on the wiper motor arm to
the wiper linkage & push the wipers to where
you want them

Locate the wiper motor, and disconnect the electrical wires from it by unplugging them. The wiper motor is in the engine compartment against the back firewall near the driver's side.
Disconnect the wiper arms from the wiper motor linkage by using the pliers to remove the clip.
Locate the wiper motor in the engine compartment on the back firewall and remove it with the proper size wrench. There are three attaching bolts.
Remove the wiper motor by twisting it around if you have to. The wiper arm linkage will come out with it. good-day !

3Remove the cowl grill under the windshield wipers using the proper size screwdriver. This is the grill that you see under the wiper arms before the engine compartment hood starts.

Read more: How Do I Remove a Windshield Wiper Motor from a 1994 Ford F-250? ' eHow.com http://www.ehow.com/how_7195498_do-motor-1994-ford-f_250_.html#ixzz1odr1irhn

Sounds like a stripped gear/linkage between the motor and the wipers.

it is problem with linkage of motor , you have to lubricate it then try once, but the motor is gone weak so it not pushing that linkage, you just try with lubricating that linkage that connected to wiper motor to wiper arm, if it work you saved your money or do replace the motor assy.

You don't have to put the wipers in an upright position You can take the arms completely off. It's very easy to do, when you are looking at the base of the wiper arm, on the side closest to the windshield, at the base, there is a spring-loaded tab. Lift the arm on its hinge to where the arm is now pointing away from the windshield, pull the tab and the wiper arm will slide right off. Now you can access the linkage joints easily. Hope that helps!

there are little tabs at the end of the arm where it attaches to the wiper trans. if you bend the arms up at the hinge and swing those tabs out the arms will stay up (a small screw driver can be used to move the tabs if they are stuck. A 1/8 screwdriver is a good choice, $4 at sears). once those tabs are out and the arms are holding themselves up just pull. you may need to rock them back and forth a bit but they should just pull off.

To remove the wiper motor itself:
1993 Aerostar/Ranger/Explorer

1. Turn the wiper switch on. Turn the ignition switch on until the blades are straight up. Then, turn ignition off to keep them there.

1. Disconnect battery and wiper motor electrical connector.

1. Remove the right wiper arm and blade.

1. Disconnect the negative battery cable.

1. Remove the right pivot nut and allow the linkage to drop into the cowl.

1. Remove the linkage access cover, located on the right side of the dash panel near the wiper motor.

1. Reach through the access cover opening and unsnap the wiper motor clip.

1. Push the clip away from the linkage until it clears the nib on the crack pin. Then, push the clip off the linkage.

1. Remove the wiper linkage from motor crank pin.

1. Remove nut and ground strap.

1. Remove three attaching nuts from wiper motor. Remove the motor.

(instructions copied direct from ford shop manual)

Why did you buy a switch? Did the original one meter out bad? Never replace any part till you understand how it works and how to test it. Work the wipers and the lighting issues as two separate problems. The wiper motor or relay etc may have failed around the same time as the heater core. Two separate things Unplug the wiper motor and turn the key on. Meter out the connector in different switch modes. Need a schematic of the circuit. Lights-- Problem is after the fuses and they are the start of most circuits. so you know you have an open circuit like a connector under the dash you disturbed unknowingly during the heat core deal or a loose ground wire.

Have you tried backing the timing up about 2 deg.

I LOVE YOUR SCREEN NAME!!!!!!!!!!!!!!!!!!!!!!!! The Motor is Bad or you have a Broken Linkage. You can Check for a Broken Linkage By having someone hold the Switch in and see if you here the Motor make any Noise. If Not, You will need a New Wiper Motor. Please Rate My Response! Thanks!