The windshield wiper motor transmission on a 1997 Lincoln Town Car is a crucial component responsible for converting the motor’s rotational motion into the up-and-down movement of the wiper blades. Over time, this transmission can experience wear and tear, leading to various problems, including⁚
- Slow wiper speed⁚ The transmission may become worn or have excessive grease buildup, slowing down the wiper movement.
- Intermittent wiping⁚ The transmission might seize or slip, causing the wipers to stop and start intermittently.
- No wiper movement⁚ This indicates a complete failure of the transmission or the wiper motor itself.
Before diving into troubleshooting, it’s essential to ensure the wiper motor itself is functioning correctly. Test it by directly applying power to the motor. If the motor runs, the issue lies within the transmission.
Troubleshooting Steps
- Inspect the Transmission⁚ Remove the wiper arm and blade. Carefully inspect the transmission for signs of wear, damage, or excessive grease buildup. If you see any issues, consider replacing the transmission.
- Lubricate the Transmission⁚ If the transmission appears clean but slow, try lubricating it. Apply a small amount of high-quality grease to the transmission’s moving parts. Avoid over-lubrication, as it can cause issues.
- Check for Electrical Problems⁚ Inspect the wiring and connectors leading to the transmission for any signs of damage or corrosion. Repair or replace any faulty wiring or connectors.
- Test the Transmission⁚ After performing any repairs or adjustments, test the wipers to ensure they are operating correctly. If the problem persists, further investigation may be necessary.
Common Issues
Some common issues related to the windshield wiper motor transmission include⁚
- Worn or Damaged Gears⁚ The gears within the transmission can wear down over time, causing the wiper blades to move slowly or intermittently.
- Broken or Bent Linkage⁚ The linkage that connects the transmission to the wiper arms can break or bend, preventing the wipers from moving properly.
- Stuck or Worn Bearings⁚ The bearings within the transmission can become stuck or worn out, causing the transmission to seize up.
Replacement
If the transmission is beyond repair, replacing it is necessary. The replacement process typically involves removing the old transmission, installing a new one, and reconnecting the wiring. Be sure to use the correct replacement transmission for your vehicle.
Safety Considerations
When working on the windshield wiper system, always disconnect the battery to prevent electrical shock. Additionally, be careful not to drop any tools into the engine compartment, as this can damage components.
Professional Assistance
If you’re unsure about troubleshooting or replacing the windshield wiper motor transmission, it’s best to seek professional assistance from an experienced mechanic. They can diagnose the problem accurately and perform the necessary repairs or replacement.