1. Preparation:
* Safety First: Disconnect the negative battery terminal before starting any work to prevent electrical shocks.
* Gather Tools: You'll need a socket set (likely metric), screwdrivers (Phillips and flathead), possibly pliers, and possibly a ratchet and extension. A repair manual will specify the exact tools needed.
* Access: You'll need to access the wiper motor, typically located under the hood, beneath the wiper arms and linkage. You may need to remove the wiper arms (after disconnecting the motor) and possibly some plastic cowling or trim pieces.
2. Removal of the Wiper Motor:
* Disconnect the Electrical Connector: Locate the electrical connector to the wiper motor and carefully disconnect it.
* Disconnect the Linkage: Detach the wiper linkage from the motor. This often involves removing a nut or bolt and carefully separating the linkage arms. Take pictures or make notes to ensure correct reassembly.
* Remove Mounting Bolts: The motor is usually held in place by several bolts. Carefully remove these bolts, keeping track of their location and size.
* Remove the Motor: Once the bolts are removed, carefully remove the wiper motor from its housing.
3. Diagnosis and Repair:
* Inspect the Motor: Carefully inspect the motor for any visible damage, such as broken wires, corroded connections, or a seized motor.
* Test the Motor (Optional): If you have a way to test the motor (a multimeter and some electrical knowledge are needed), you can determine if the motor itself is faulty. If the motor tests bad, it likely needs replacement.
* Check Wiring and Connections: Inspect the wiring harness for any broken wires, loose connections, or corrosion. Repair or replace as needed.
* Check the Fuse: Check the fuse for the wiper motor in the fuse box. A blown fuse is a simple and inexpensive fix. Refer to your owner's manual for the fuse location and rating.
* Check the Switch: If the motor and wiring are good, the problem might lie with the wiper switch itself. This is more involved to check and possibly replace.
4. Reinstallation:
* Installation is the reverse of removal: Install the new or repaired motor, ensuring all connections are secure and properly tightened.
* Reconnect the Linkage: Carefully reconnect the wiper linkage to the motor, making sure it is aligned correctly.
* Reconnect the Electrical Connector: Securely reconnect the electrical connector to the motor.
* Reconnect the Battery: Reconnect the negative battery terminal.
* Test the Wipers: Turn on the wipers to ensure they are functioning correctly.
Important Considerations:
* Repair Manual: A repair manual specific to your 1993 Saturn SL is highly recommended. It will provide detailed diagrams, torque specifications, and troubleshooting steps.
* Replacement Motor: If the motor needs replacement, ensure you get the correct part for your vehicle. Provide your vehicle's VIN to the parts supplier for accurate identification.
* Professional Help: If you're unsure about any step, or if you encounter difficulties, it's best to consult a qualified mechanic. Improper repair could lead to further damage.
This detailed guide provides general information. Always prioritize safety and consult your vehicle's repair manual for specific instructions related to your 1993 Saturn SL.
