What Causes the Steering Gear Noise in Subaru Outback?
2 Answers
Steering gear noise in Subaru Outback is caused by the reduction gear noise, rack and pinion noise, and end bushing noise. Reduction gear noise: This is mainly due to excessive clearance between the worm and worm wheel of the reduction gear, causing the teeth to collide and produce noise. The solution is to increase the amount of grease in the reduction gear by injecting special steering gear oil to fill the gap. Rack and pinion noise: This is primarily caused by excessive clearance between the rack and pinion. It requires replacing the improved reinforced spring and shim, then adjusting the clearance to resolve the issue. End bushing noise: This is mainly due to excessive clearance between the end bushing and the rack shaft, causing the teeth to collide and produce noise. The steering gear needs to be replaced.
I've been driving for over a decade, and steering gear noise in Subaru Outbacks is quite common, primarily due to steering system issues. Aging power steering pumps or insufficient fluid levels can cause squeaking sounds, while loose or slipping belts can also generate noise. Worn ball joints or tie rods often produce clunking noises during turns, especially in older vehicles. I've encountered this situation myself, and upon inspection, it turned out the hydraulic fluid had degraded and needed replacement. Another contributing factor is insufficient lubrication in the steering column universal joint, where increased friction causes abnormal noises. I recommend regularly checking the power steering fluid level and belt tension, and addressing any issues promptly at a professional repair shop before they escalate into major safety risks. Safe driving should always come first, and timely maintenance can save you significant money in the long run.
