Frequent Faults Encountered with a Ford Windshield Wiper Arm
You may think that your Ford's windshield wiper arms are built only for cleaning purposes, but in fact, they are built primarily to serve as a safety measure. Without these windshield wiper arms, you will find it hard to drive your auto, especially during harsh weather conditions where visibility is low. If you still drive with defective windshield wiper arms even when it is raining, then you are putting yourself at great risk of collision. If you think the stock parts on your car are no longer serving their purpose, then better perform some troubleshooting. Below are common problems encountered with a Ford Windshield wiper arm and the reasons behind them.
Scraping or screeching sound
The easiest way to diagnose a defective windshield wiper arm is by listening for an unusual sound when the parts operate. If this happens, simply inspect the rubber on the wiper blades. Check if they are already worn. If they are indeed, defective, you may find the rubber parts to be stiff, which causes them to scrape unevenly. Other times, a wiper blade might be missing, so this will cause the metal part of the arm to scratch and damage the window glass. Eventually, when these faulty parts are left unaddressed, you will find an ugly windshield, full of damages and scratches.
Streaks on the windshield glass
If the windshield wiper arms make your windshield dirty instead of clean, then you might have damaged parts. To troubleshoot, look for streaking that is visible when the wiper arms are engaged. You will see that water remains on the windshield because the wiper arms are missing these sections. Pretty soon, you may find the windshield hazed since there is a possibility of dirt and debris buildup, especially when you constantly drive in dusty areas. Cleaning the blade usually solves the problem, but if it does not, simply find a replacement.
Wiper arms do not move when prompted
If the windshield wiper arms remain motionless even if the switch is turned on, then the most likely cause is a defective motor. Simply inspect if the motor is already burnt out. Just replace the damaged part to fix the problem. In other instances, the gears are damaged, so you might also want to inspect these parts.