Your windshield wiper motor, a seemingly small component, plays a crucial role in maintaining visibility during inclement weather. However, its location under the hood exposes it to a harsh environment where moisture and corrosion can wreak havoc. Rust, the byproduct of iron oxidizing in the presence of water and oxygen, is a primary culprit in wiper motor failure. Over time, rust accumulates on the motor’s internal components, such as the armature, commutator, and field coils. This accumulation disrupts the motor’s magnetic field, hindering its ability to generate torque and ultimately leading to sluggish or completely non-functional wipers.
Water’s Corrosive Embrace
While rust is a significant concern, direct water exposure can also be highly detrimental to your wiper motor. Water intrusion can occur through various pathways, such as worn-out seals, damaged wiring harnesses, or even condensation buildup within the motor housing. Once inside, water can cause short circuits by creating an unintended electrical path between components. This can lead to overheating, component damage, and eventual motor failure. Furthermore, water can corrode electrical connections, impeding the flow of current and causing intermittent or unreliable wiper operation. In regions with high humidity or frequent rainfall, the risk of water-related damage is even greater. In that case, choosing the Auto Repair in Troy, Oh based service would be the best choice now.
Electrical Component Degradation
The electrical components within the wiper motor are particularly vulnerable to the effects of moisture and corrosion. The wiring, brushes, and commutator are all susceptible to degradation when exposed to water and corrosive elements. Corroded wiring can become brittle and break, interrupting the electrical circuit and causing the motor to stop functioning. Worn or corroded brushes can lose their contact with the commutator, leading to reduced motor performance or complete failure. A corroded commutator can develop pits and grooves, which can damage the brushes and cause erratic wiper movement. Regular inspection and maintenance can help identify and address these issues before they escalate into more serious problems.
Mechanical Breakdown
Beyond direct electrical damage, moisture and corrosion can also contribute to mechanical breakdown within the wiper motor. The linkages and gears that transmit the motor’s power to the wiper arms can seize or break due to rust and corrosion. This can result in the wipers moving erratically, or not moving at all. In extreme cases, the entire motor assembly may become locked up, requiring complete replacement. Proper lubrication and regular cleaning can help prevent rust and corrosion from affecting these mechanical components.
Prevention is Key
Protecting your wiper motor from moisture and corrosion is essential for ensuring its longevity and reliable operation. Consider applying a rust inhibitor or sealant to exposed metal surfaces to prevent rust formation. Regularly inspect the motor for signs of water intrusion or corrosion, and address any issues promptly. Ensure that the wiring harnesses and seals are in good condition and replace them if necessary. Park your vehicle in a garage or covered area whenever possible to minimize exposure to the elements. By taking these preventative measures, you can significantly extend the lifespan of your wiper motor and maintain clear visibility during all weather conditions.
