Can you drive with a broken power steering line?
A broken power steering line typically means you will lose hydraulic assist, making steering significantly harder. In most cases, you should not continue driving and you should arrange a tow to a repair shop. This article explains why, what to do right away, and what to expect during repairs.
How power steering lines work
Most vehicles with hydraulic power steering use two hoses: a high-pressure line that carries fluid from the steering pump to the steering rack, and a low-pressure or return line that sends fluid back to the reservoir. When these lines leak or rupture, the system loses fluid and the pump can overheat or run dry. Some newer vehicles use electric power steering (EPAS), which relies on an electric motor and sensors rather than hydraulic fluid; in those cars, a “broken line” condition is not the same issue as a hydraulic leak.
Is it possible to drive with a broken line?
In a traditional hydraulic system, you may still be able to steer, but with very little or no power assist. The steering will feel heavy, especially at low speeds, and continuing to drive can damage the power steering pump, rack, and hoses. If your vehicle uses electric power steering (EPAS), there is generally no hydraulic line to break, so a leak would present differently and may not involve a hydraulic line in the same way. Regardless of the system, driving with a suspected broken line is unsafe and not recommended.
Note on electric power steering
Electric power steering uses an electric motor to assist steering, not hydraulic pressure. A broken hydraulic line is less likely to be the symptom in EPAS-equipped vehicles, but other electrical or sensor problems can cause stiff steering or a loss of assist. Always verify your vehicle’s specific system in the owner’s manual or by consulting a dealer.
What to do right away
If you notice a potential leak or damage to a power steering line, follow these precautions to minimize risk and get to safety quickly.
- Safely pull over to a secure area off the road as soon as you can and turn on your hazard lights.
- Do not continue driving long distances. A tow is usually the safest option to prevent further damage.
- Look for visible signs of a leak (fluid dripping under the car, wet hoses, or a puddle) and check the color and smell of the fluid if safe to do so.
- Call roadside assistance or a tow truck to transport the vehicle to a repair shop.
- If you must move the car to a nearby safe spot, drive very slowly and gently, avoiding abrupt turns or high speeds. Expect heavy steering and plan your moves carefully.
After taking these steps, you can ensure you reach a mechanic without exacerbating the problem and risking your safety or that of others on the road.
What to expect at the repair shop
When you bring a vehicle with a broken power steering line to a shop, technicians will typically perform the following steps and checks.
- Inspect the entire power steering system to locate the damaged hose or line and assess the extent of leaks.
- Replace or repair the broken line or hose with the correct part for your vehicle.
- Flush and bleed the power steering system to remove air and ensure proper fluid flow.
- Check the power steering pump, rack and pinion, and reservoir for damage or contamination; replace any affected components if needed.
- Top off the power steering fluid with the manufacturer-approved type and verify there are no additional leaks.
- Test drive and recheck for leaks and proper steering feel, making sure steering effort is normal and the system operates correctly.
Repair costs vary widely based on vehicle make and model, the extent of damage, and regional labor rates. Replacing a hydraulic hose or line typically ranges from a few hundred dollars to well over that amount, plus labor. If the pump or rack has sustained damage, costs can be higher. Your technician can provide an itemized estimate after inspection.
Prevention and maintenance tips
Preventive care can reduce the likelihood of a power steering line failure and help you catch issues early.
- Regularly inspect exposed hoses for cracking, swelling, or signs of wear and replace them as needed.
- Keep power steering fluid at the correct level and use the fluid type specified by your manufacturer.
- Look for any signs of leaks, such as pools under the car or a drop in fluid level, and have leaks repaired promptly.
- Avoid hitting curbs or objects that can crush or abrade hoses near the steering components.
- Have periodic service checks that include the steering system, especially on high-mileage or hard-working vehicles.
Preventive maintenance helps ensure you retain proper steering assist and reduces the chance of a sudden, dangerous failure on the road.
Summary: Driving with a broken power steering line is dangerous because it can eliminate or severely reduce steering assist and damage the steering components. If you suspect a leak or break, pull over safely, avoid driving further, and arrange professional repair or a tow. When repaired, ensure the system is bled correctly, leak-free, and tested before returning to normal driving. If your vehicle uses electric power steering, confirm whether a hydraulic line issue applies to your model, and follow the manufacturer’s guidance.
