You are rounding a curve or backing out of a parking space and the wheel suddenly feels like it weighs fifty pounds. Power steering has failed. You have not lost steering, you have lost the assist, and the car takes real effort to turn until you are stopped.
Here is what to do in the next thirty seconds, and what usually caused it.
1. Grip the wheel and keep steering
The car still steers. That is the part worth knowing before it happens, because the instinct when the wheel goes heavy is to let go of it. Both hands on the wheel, and expect to use your shoulders.
2. Slow down gradually
Do not stand on the brakes. Sudden braking makes a car harder to hold when the steering is already compromised. Ease off the gas and let it slow. Steering gets heavier the slower you go, so make your lane changes while you still have momentum.
3. Signal and get to the shoulder
Hazards on. Look for a flat, wide shoulder or a lot. On I-17 that means the right shoulder rather than the left, because the left one north of the 101 is narrow and you will be sitting in it. Make gradual corrections rather than sharp ones.
4. Stop, park, and switch off
Brake to a full stop, shift into park, turn the engine off. Then look under the car before you call anyone, because what is on the ground tells you most of what comes next.
What caused the failure?
Low fluid is the common one. A hose or the steering rack develops a leak, the pump runs dry, and the assist goes with it. Reddish or amber puddles under the front of the car are the tell.
A broken serpentine belt is the next. On many cars that belt drives the alternator and the water pump as well as the steering pump, so losing it means losing steering assist, charging, and cooling at once. Cracking and glazing on a belt is visible before it snaps, and it is one of the things checked at every scheduled service.
A failing pump gives notice. If the car has been whining or groaning when you turn the wheel at low speed, that was the pump asking for attention. The pump, the rack, and the tie rods and bushings around them all sit under brake and chassis repair, which is where steering work lives on this site, and north of the 101 that is brake and chassis work in Deer Valley.
Electric power steering is its own category. Many newer cars have no pump at all, and a blown fuse or a fault in the module shuts the assist off with no leak and no noise. That is a fault code rather than a puddle, so it is engine and electrical diagnostics that finds it.
Is it safe to drive without power steering?
Physically you can. We would not. Your ability to react to something sudden is cut down badly, and if a belt caused it, the water pump stopped turning at the same moment, so the car is going to overheat before you get far. In July, overheating on the freeway is how an inconvenience becomes an engine job. A belt failure is a cooling system and AC job as much as a steering one.
Get it looked at
If the steering is stiff, noisy, or gone, call (623) 363-5990 or book online. We find the leak, check the belts, and tell you the price before the work starts. We are on N. Black Canyon Hwy off I-17 near Happy Valley Road.