What Causes the Noise When Turning After Replacing the Power Steering Hose?
2 Answers
The main reasons for noise when turning after replacing the power steering hose include: lack of lubrication in the steering column, increased friction, insufficient power steering fluid, universal joint failure, aging and hardening of the rubber bushings on the chassis suspension stabilizer bar links, and damage to the plane bearing. When driving afterward, pay attention to the following points: Avoid turning the steering wheel while stationary: Avoid turning the steering wheel when the vehicle is stationary; try to steer only after the vehicle starts moving. After parking, return the steering wheel to the center position to prevent unnecessary load on the suspension system and tires. Avoid full-lock steering: When making a U-turn, try to avoid turning the steering wheel to its maximum lock position.
After replacing the power steering hose, there's a noise when turning. This is something I often encounter at the repair shop, usually caused by air entering the power steering system. When replacing the hose, air bubbles can get mixed in, causing unstable oil pressure and squeaking noises. I recommend finding a flat surface and turning the steering wheel left and right to the lock several times to purge the air. If the noise persists, check for loose or leaking connections at the pipe joints, as improper installation can cause friction and noise. If that doesn't work, check if the power steering pump is old or if there's enough fluid. Don't underestimate this noise—over time, it can wear out components and make driving unsafe. So after replacing the hose, make sure to fully purge the air. This method works for most cars. I’ve handled over a dozen similar cases myself, and after purging the air, the noise usually stops.
