If the wiper arm tension is too loose, it can cause the wiper blades to stick. To adjust the tension, use a wrench to turn the nut that connects the wiper arm to the wiper motor.
2. Check the wiper linkage
The wiper linkage is the mechanism that connects the wiper motor to the wiper blades. If the linkage is damaged or loose, it can cause the wiper blades to stick. Inspect the linkage for any damage or looseness, and tighten any loose nuts or bolts.
3. Check the wiper motor
If the wiper motor is not working properly, it can cause the wiper blades to stick. To test the wiper motor, turn on the wipers and see if they move smoothly. If the wipers do not move, or if they move erratically, the motor may be faulty.
4. Check the wiring
The wiring that connects the wiper motor to the power supply can also cause the wiper blades to stick. Inspect the wiring for any damage or loose connections, and repair any that are found.
5. Replace the wiper blades
If the above steps do not fix the problem, the wiper blades may need to be replaced. When replacing the wiper blades, be sure to choose the correct size and type of blades for your vehicle.
If none of the above steps fix the problem, you may need to take your vehicle to a mechanic to have the wiper motor or wiper linkage repaired or replaced.
