What is the reason for the sudden failure of the Excelle wiper?
2 Answers
The reason for the sudden failure of the Excelle wiper is a blown fuse. Below is a detailed introduction to the car wiper: Main components: The electric windshield wiper is driven by a motor and generally consists of a wiper arm, wiper blade assembly, rubber blade, blade holder, blade support, wiper arm spindle, wiper base plate, motor, reduction mechanism, drive linkage, drive linkage hinge, wiper switch, and wiper switch knob. Working principle: The left and right wiper blades are pressed against the outer surface of the windshield by the wiper arms. The motor drives the reduction mechanism to rotate, and through the reciprocating motion of the drive linkage system, it drives the wiper arms and blades to swing left and right, wiping the windshield.
My Buick Excelle's wipers also suddenly stopped during heavy rain last time, which really panicked me. Later, I checked myself and found the fuse was blown. It turns out the wiper fuse is prone to blowing when the circuit is under heavy load, like when I use high speed in heavy rain. After replacing with a new fuse, it worked normally again. Aging of the wiper motor is also a common issue in Excelle - after several years of use, bearing seizure or wear can cause motor burnout. If the switch contacts oxidize or have poor connection, failure may occur too. Additionally, if the wiper linkage mechanism gets stuck or lacks lubrication, it increases torque and may stall the motor. I suggest starting with the simple fuse check first - it's located in the fuse box under the driver's seat, usually the 15A one. DIY replacement is easy, but remember to turn off the engine. If a new fuse doesn't solve it, you'll need to check the circuit or visit a professional shop. Safety first - if wipers fail in rain, immediately turn on hazard lights and pull over to investigate. Regularly cleaning leaves and debris under the windshield can prevent sticking issues.
