Can Chassis Impact Cause Abnormal Noise in Electronic Power Steering?
2 Answers
Chassis impact may potentially cause abnormal noise in electronic power steering. Causes of abnormal noise in power steering: Unlubricated steering column with high friction; Check for insufficient power steering fluid; Inspect for universal joint issues; Worn or hardened rubber bushings on chassis suspension stabilizer links; Damaged plain bearings. Introduction to power steering: Also known as steering gear, the power steering is the most crucial component for vehicle steering functionality and a vital safety assurance for driving. Precautions regarding power steering noise: If abnormal noise is detected while driving, it's advisable to find a safe place to park. If the noise is severe, it's best to call for towing assistance.
Absolutely possible! I've encountered quite a few similar cases during my years of car repairs. If the impact on the chassis is strong enough to directly hit the electronic power steering unit, it can range from shell deformation to misalignment of internal gear sets. Once, a customer's car scraped a rock, and there was a clicking sound when turning. Upon disassembly, we found the motor bracket was cracked. The electronic power steering unit is full of precision sensors and wiring. After a collision, squeezed wires causing short circuits or damaged dust boots letting in sand can all lead to abnormal noises. I strongly recommend stopping and checking immediately if any abnormal noise occurs. Last time, a car owner insisted on driving for two days and ended up spending thousands to replace the entire assembly. Also, it's best to slow down when going over speed bumps, and installing underbody protection panels is highly advisable if possible.
