It’s not hard to maintain windshield wiper motor, so you don’t put a lot of effort and money for the maintenance. But of course, like some other parts, you still need to replace it. Replacing wiper motor is easy especially when you have the right tools to use to consider also your safety. Windshield wiper motors is proficient of overcoming the binding effect of ice on the wiper blades.
The first thing to do is to locate first the windshield wiper motor. Its located to the firewall between the engine and driving compartment. If you can’t find it, check the service manual for your year and model vehicle.
Next, used a fused jumper wire to bypass the motor relay once you located the wiper motor. Use a service manual to find the motor relay. clip one side to the positive battery and touch the other end to positive of the wiper motor. If the motor works and arms move, change the relay.
Next, Use the positive lead on your jumper wire to touch the positive terminal on the relay. If the motor works, you need to check the gear mechanism inside the motor assembly. If it does not work, continue with the removal and replacement procedures that follow.
Next, locate the grounding strap. One end of the grounding strap is secured to the motor case with a bolt or screw. The opposite end is secured to one of the wiper motor mount bolts. Once you have located it, remove the mount bolt it is grounded to using your open-end box-end wrench or ratchet set. Move the ground strap out of the way so it does not get stretched or damaged.
Next, remove all other mount bolts. Then gently pull the washer motor away from the mount and remove from the engine compartment.
Then, Line up the mount holes on your new washer motor with the mount bolts on the firewall. Push the motor onto the mount bolts and secure in place with the mounting nuts. Tighten nuts in a star pattern so the washer motor is flush against the firewall. Reinstall the wiper motor grounding strap.
And Lastly, Use your fused jumper wire to test the new motor's operation. The motor should turn freely. If not, the new part is defective. Return it to the vendor you bought it from and get a new one. Disconnect the jumper wire leads. Install the connector to the relay. Check motor operation from the switches on the driver's console.
Reference: http://www.ehow.com
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