Why does the power steering fluid spray out from the reservoir?
2 Answers
Power steering fluid sprays out from the reservoir because the filter screen in the reservoir is clogged, leading to poor circulation. Here is an introduction to power steering fluid: 1. Overview: Power steering fluid is a special liquid used in the power steering pump of a car. Through hydraulic action, it can make the steering wheel very light, similar to automatic transmission fluid, brake fluid, and shock absorber fluid. 2. Function: Power steering is a new technology in cars that enhances comfort. It automatically provides steering force when the driver turns the wheel, thereby reducing the driver's steering effort. Power steering fluid is a medium oil added to the power steering system, serving to transmit steering force and provide cushioning.
I've been an auto repair technician for nearly 20 years, and this kind of power steering fluid spraying situation is actually quite common. The most likely cause is aging seals inside the power steering pump or cracked oil seals. Under high pressure, the fluid gets squeezed out through gaps and sprays back into the reservoir through the lines. When this happens, you'll feel the steering wheel become extremely heavy, and you might hear a 'hissing' sound of air leakage. Just last week, I repaired an old Camry with exactly this issue - when we opened it up, the pump's sealing ring had crumbled into pieces. If the vent hole in the reservoir cap gets clogged, it's even worse. The built-up pressure has nowhere to go and can blow the cap right off, spraying fluid all over the engine compartment. Never ignore this kind of problem - sudden steering failure is no joke. Get your pump and lines checked immediately.
