How to Improve Power Steering

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Thanks to power steering technology, you shouldn’t have to exert a lot of effort to turn your car, but as your vehicle ages, the steering wheel might start to stick or feel heavy. If that sounds like your car, it’s time to adjust your steering system! To help you get the smooth vehicle handling you’re looking for, we’ve compiled a guide of at-home fixes and bigger system issues to bring to your mechanic.

1

Adjust your tire pressure.

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    Check the owner's manual to see what the correct PSI is for your vehicle's tires. Remove the end cap on each tire's air valve and stick the pressure gauge inside. Press down quickly and look at the reading. If the PSI is too low, add a little air to the tire. [1] If it's too high, press on the valve to release some of the air and check it again. [2]
    • Use a digital tire pressure gauge or a traditional stick-type gauge for this. You can usually use a stick-type gauge for free at your local gas station.
    • Check the pressure when your tires are cold. You won't get an accurate reading if you've been driving on the tires for a while.
    • Check the inflation and adjust it (if needed) once a month. [3] A warning light will usually light up on your car's dash if there's an issue, though.
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2

Get a routine alignment.

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    Only a professional can do this, so take the car to a mechanic. An alignment is usually pretty cheap ($50 to $75) and it doesn't take long. If the auto shop isn't packed, you should be in and out in no time. [4]
    • Cars tend to veer slightly to one side or the other when alignment is off. [5]
    • If your tread doesn't look the same on all tires (for example, the front tires look more worn down than the back ones), your wheels are probably out of alignment.
    • Schedule more frequent checkups if you drive in an area with lots of potholes and rough terrain.
3

Rotate your tires.

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    Many mechanic shops will offer to rotate your tires and do an alignment during the same visit. Regularly rotating the tires ensures they wear evenly, which prevents excess strain on the steering and suspension system. [6]
    • When your tire tread wears down significantly, try to replace all 4 tires at the same time so they'll be perfectly balanced. If that's not in your budget, though, just make sure the new tire matches the size and shape of your current tires to prevent any problems.
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4

Top off the power steering fluid if it's running low.

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    Open your car’s hood and unscrew the cap on the power steering fluid reservoir. Grab the power steering dipstick (it's usually attached to the reservoir cap or located nearby ) and stick it into the reservoir. The fluid should be slightly above the refill mark. If it isn't, it's too low. [7] Fill the reservoir with fresh fluid until it's at the right level. [8] Then, start your car, turn the wheel back and forth, and check the reservoir again. If the level dropped, add more fluid until you're fully topped off.
    • See the owner's manual to determine what kind of power steering fluid your car needs. [9]
    • If the fluid level is low every time you check it, take your car in for service. You may have a leak.
5

Flush and replace contaminated power steering fluid.

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    Unscrew the cap on the power steering reservoir and drain the bad fluid into a bucket or siphon it out with a turkey baster. Hop behind the wheel, turn the key, and move the steering wheel from side to side a few times until the last bit of old fluid bubbles up; drain that, too. Refill the reservoir about 3/4 of the way with fresh fluid. Start the engine again and turn the wheel back and forth a few times to get the fluid flowing. [10] Then, fill up the reservoir the rest of the way with new fluid. [11]
    • Check your car's manual to see what kind of power steering fluid it needs.
    • Bring drained fluids to an auto parts store, recycling facility, or transfer station to be disposed of properly. Never pour fluids down the sink or into the trash. [12]
    • If you don't have experience changing fluids, it's best to take your car to be professionally serviced.
    EXPERT TIP

    Hovig Manouchekian

    Auto Repair & Design Specialist
    Hovig Manouchekian is an Auto Repair and Design Specialist and the Manager of Funk Brothers Auto, a family-owned business operated since 1925. With over 30 years of experience in the automotive industry, Hovig specializes in the process of auto repair and maintenance. He is also very knowledgeable in common automotive issues and needs including engine repair, battery replacement, and windshield accessory and maintenance. Hovig's knowledge and hard work have contributed to Funk Brothers Auto winning Angie's List Super Service Award for five consecutive years.
    Hovig Manouchekian
    Auto Repair & Design Specialist

    Top up your power steering fluid to ensure a smooth ride. Contaminated power steering fluid is a common cause of a stiff steering wheel, as are low levels of fluid. Fix contaminated fluid with a system flush. If the fluid level is low, there may be a leak in the system. Keep the reservoir filled with fresh fluid.

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6

Inspect the accessory belt(s) for damage.

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    The serpentine belt or V-style belt (or possibly both, depending on your car) supplies power to your steering system. Pop the hood and check out your accessory belt(s) up close (use your owner's manual to locate them if you aren't sure). Look for damage like cracks, fraying, separating layers, cracks, or missing chunks on the underside. If you spot any damage, take your car to a professional ASAP to have the belt(s) replaced. [13]
    • Replace your serpentine belt every 60,000–90,000 miles (97,000–145,000 km) as a preventative measure. [14]
    • Some vehicles only have a V-belt. Others may have a serpentine belt and a V-belt. If you're unsure about anything, it's best to take your car to a mechanic. [15]
7

Check for a slipped or loose belt.

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    Belts slip or lose tension when they’re almost at their failing point, and they’re most likely to slip around tight turns. If your car suddenly gets very difficult to turn, it might have a slipped belt. You'll probably hear a high-pitched whine, chirping sounds, and/or vibration noises coming from under the hood, as well. [16]
    • Take your car in for service immediately if you suspect a slipped belt.
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8

Get your car inspected for a worn-out steering rack.

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    The steering rack converts the rotation from the wheel into linear motion to turn the tires. If you try to turn the wheel and the car keeps going straight, get your steering rack looked at by a professional mechanic and replaced immediately. [17]
9

Check for symptoms of a bad steering pump.

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    The wheel may feel harder to turn or the car will pull to one side on its own. You may hear a squealing sound and feel excessive vibrating or bouncing when you're driving the vehicle. [18]
    • If you notice these symptoms, get a professional to fix your steering issue ASAP. [19]
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Expert Q&A

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  • Question
    What happens if you don't change your power steering fluid?
    Audra Fordin
    Certified Automotive Technician
    Audra Fordin is a Certified Automotive Technician, the Founder of Women Auto Know, and the Owner of Great Bear Auto Repair in Flushing, New York. With more than 38 years of experience, she has intensive knowledge about foreign and domestic auto repairs. Audra has been featured on numerous news and talk shows such as The Today Show, Inside Edition, and Anderson Cooper.
    Audra Fordin
    Certified Automotive Technician
    Expert Answer
    Your power steering fluid gets contaminated, and your steering system may feel jammed, crinkled, or stiff.
    Thanks! We're glad this was helpful.
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  • Question
    How can I make my power steering smoother?
    Audra Fordin
    Certified Automotive Technician
    Audra Fordin is a Certified Automotive Technician, the Founder of Women Auto Know, and the Owner of Great Bear Auto Repair in Flushing, New York. With more than 38 years of experience, she has intensive knowledge about foreign and domestic auto repairs. Audra has been featured on numerous news and talk shows such as The Today Show, Inside Edition, and Anderson Cooper.
    Audra Fordin
    Certified Automotive Technician
    Expert Answer
    Use a steering wheel spinner knob! You put it directly onto your steering wheel, and you use it to steer instead of the actual wheel. It makes your steering feel a lot smoother and softer.
    Thanks! We're glad this was helpful.
    Thank you for your feedback.
    If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
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      Tips

      • At the auto shop, always ask for a written estimate of the work including a summary of what needs to be done, the parts needed, and the predicted labor charge. [20]
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      References

      1. ↑ Audra Fordin. Certified Automotive Technician. Expert Interview. 13 January 2022.
      2. ↑ https://www.dmv.org/how-to-guides/check-tire-pressure.php
      3. ↑ https://www.nxtbook.com/mercury/autocare/CarCareguide/index.php#/p/16
      4. ↑ https://www.nxtbook.com/mercury/autocare/CarCareguide/index.php#/p/16
      5. ↑ https://www.consumer.ftc.gov/articles/0211-auto-repair-basics
      6. ↑ https://www.nxtbook.com/mercury/autocare/CarCareguide/index.php#/p/16
      7. ↑ http://www.dmv.ri.gov/documents/manuals/Section11_Pre-Trip_Vehicle_Inspection.pdf
      8. ↑ Audra Fordin. Certified Automotive Technician. Expert Interview. 13 January 2022.
      9. ↑ https://www.consumerreports.org/car-repair-maintenance/how-to-safely-work-on-your-car-at-home/
      1. ↑ https://www.youtube.com/watch?v=VuPALAnHjRM&t=107s
      2. ↑ Audra Fordin. Certified Automotive Technician. Expert Interview. 13 January 2022.
      3. ↑ https://www.consumerreports.org/car-repair-maintenance/how-to-safely-work-on-your-car-at-home/
      4. ↑ https://www.consumerreports.org/car-repair-maintenance/how-to-inspect-car-belts-and-hoses/
      5. ↑ https://www.nxtbook.com/mercury/autocare/CarCareguide/index.php#/p/12
      6. ↑ https://www.nxtbook.com/mercury/autocare/CarCareguide/index.php#/p/26
      7. ↑ https://www.consumerreports.org/car-repair-maintenance/how-to-inspect-car-belts-and-hoses/
      8. ↑ https://www.popularmechanics.com/cars/how-to/a109/1272476/
      9. ↑ https://www.nxtbook.com/mercury/autocare/CarCareguide/index.php#/p/44
      10. ↑ https://www.consumerreports.org/car-maintenance/car-repair-red-flags-older-vehicles/
      11. ↑ https://www.consumer.ftc.gov/articles/0211-auto-repair-basics

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