Winter’s cold temperatures, moisture, and road conditions add extra stress to steering racks. Below are the most common issues—no complicated terms, just key points.
1. Stiff Steering Caused by Thickened Fluid
Low temperatures make power steering fluid thicker (like cold syrup).
Thickened fluid flows slowly, so the steering rack doesn’t get enough lubrication or assistance—turning the wheel feels stiff, especially when starting the car cold.
Note: This eases as the fluid warms up, but it’s a reminder to check if your fluid is suitable for winter.
2. Rust from Moisture and Road Salt
Winter rain, snow, and road salt can seep into the rack’s rubber boots if they have cracks.
Moisture mixed with salt causes fast rust on the rack’s metal parts (e.g., inner rod). Rust makes steering rough and damages seals over time.
You may hear grinding noises when turning if rust starts.
3. Oil Leaks from Hardened Seals
Cold air hardens and shrinks the rack’s rubber seals.
Hardened seals lose their tightness, leading to power steering fluid leaks (check for wet spots under the car’s front).
Small leaks in winter get worse quickly—low fluid makes steering stiffer and harms the rack long-term.
4. Boot Damage from Ice and Debris
Snow, ice, and road grit get stuck in the rack’s rubber boots.
When the car moves, ice and grit rub against the boots, causing tears or cracks.
Damaged boots let more moisture in, which may lead to rust or leaks later. You might see frayed edges on the boots if this happens.