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Windshield wiper motors are generally easy to replace. You need to remove the windshield wipers and take off the small grill panel above the hood and under the windshield. You should see the motor in there. It simply unbolts and unplug the electrical connector and replace it with a new one.
The clip slides away (sideways) from the wiper arm stem Then you will be able to slip it off easily as the spring is being held away from tension on the stem. Then remove all the screws (approx 7 under the hood and 5 across the top of the cowl right between the windshield and the hood. Then remove the cowl cover and you will see you have complete access to the motor and arms as well as the bolt that hold the motor to the firewall. You will then be able to access the clip on the wiper motor transmission so you can remove it for replacement or repair.
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.
YOU NEED TO TURN OFF RADIO FIRST THEN DISCONNECT NEGATIVE BATTERY CABLE. YOU NEED TO MARK POSITION OF THE WIPER ARMS ON THE WINDSHIELD YOU CAN USE WHITE OUT LIQUID PAPER TO MARK WIPER ARMS LOCATION.THEN REMOVE WIPER ARMS,REMOVE THE COWL COVER,REMOVE THE WIPER MOTOR LINKAGE MOUNTING BOLTS.REMOVE ASSEMBLY, DISCONNECT THE ELECTRICAL CONNECTOR AND UNBOLT THE MOTOR FROM THE LINKAGE.
I replaced the same part on a 1994 Crown Vic. There are a few bolts which go through rubber mounts on the firewall and that is how the wiper motor fits against the firewall. There is a clip on the wiper drive that must be pressed and slid off the wiper shaft. The hardest part was getting clearence between the engine and wiper motor. If I remember there was a way to turn the wiper case to clear the engine. I have asked myself why this was engineered like this? There is nothing important in the way that 3/4" of clearance could have been given for removal.
I just did the job yesterday.
1. Remove the windshield wipers.
2. Disconnect hose to wiper fluid nozzles under cowling.
3. Disconnect power to wiper motors at drivers side motor.
4. Disconnect fluid hose near cowling above passenger tire.
5. Unbolt the metal cowling from the vehicle & remove it.
6. Now you can easily access the coil pack - takes 3 screws.
7. Replace items in reverse order.