* Do nothing: If the wipers are functioning adequately, this is the simplest and cheapest option.
* Replace wiper blades: Even if the wipers work, worn blades can streak and leave residue. New blades are inexpensive and easy to install. This is the most likely "repair" needed if wipers are working but not perfectly.
* Check wiper fluid reservoir: Ensure the reservoir is full and the fluid is working properly. Low fluid can lead to streaking, especially on dry days.
* Inspect wiper motor and linkage: If there's any unusual noise, slow speed, or intermittent operation, the motor or linkage might need attention. This could involve lubrication, adjustment, or replacement of parts. This is less likely if the wipers are currently working.
* Inspect wiper arms for wear: If the arms are loose or bent, they could be causing poor contact with the windshield. This might require tightening, bending back into shape (carefully!), or replacement.
* Clean the windshield thoroughly: Dirt, bugs, and grime on the windshield can interfere with wiper performance, even with new blades. A clean windshield is crucial for optimal wiping.
In short, the most probable and recommended action if your wipers *currently work* is to simply replace the wiper blades. If you have other performance issues, then consider inspecting the other components. A simple online search for "1992 Chevrolet Lumina wiper repair" will provide more specific guides and diagrams.
