Power Steering Only Works When Accelerating

Are you experiencing a strange phenomenon in your car where your power steering only works when you hit the gas pedal? It can be quite perplexing and frustrating, but fear not, as we’re here to shed some light on this issue. In this blog post, we will explore the possible causes and solutions for power steering that seems to function properly only when you accelerate.

Power steering plays a crucial role in making steering your vehicle effortless and smooth. So, when it starts acting up, it can be a cause for concern. We’ll delve into topics such as power steering pump failure, clogged power steering lines, and problems with the rack and pinion system. By the end of this post, you’ll have a better understanding of why your power steering behaves erratically and how you can address the issue. So, let’s dive in!

 Power Steering Only Works When Accelerating

Power Steering: When Acceleration is the Key

When it comes to turning the steering wheel, there’s nothing worse than feeling like you’re arm-wrestling a sumo wrestler. And if you’re experiencing this struggle, chances are your power steering system is not working as it should. But what’s the deal with power steering only working when accelerating? Let’s dive into the depths of this automotive mystery and unravel the secrets hidden beneath the hood!

The Science Behind Power Steering

Before we tackle the perplexing issue of power steering only working during acceleration, let’s take a moment to understand how this system operates. At its core, power steering helps you navigate smoothly by reducing the effort required to turn the wheel. In a hydraulic power steering system, a pump helps push hydraulic fluid into a cylinder, which assists with the steering mechanism. This hydraulic boost makes steering a breeze, even when you’re parallel parking in a tight spot.

The Curious Case of Acceleration Dependency

Now, picture this: you’re driving along the open road, sipping on your travel mug of coffee, and suddenly you realize the power steering has gone rogue. The wheel becomes stiffer than a P.E. teacher’s whistle, and your coffee threatens to become modern art on the dashboard. But here’s what’s really puzzling – the power steering seems to come back to life the moment you press on the gas pedal. What in the name of Henry Ford is going on here?

Unmasking the Culprit: Serpentine Belt

Well, the likely suspect responsible for this odd behavior is the serpentine belt, one of the MVPs of your vehicle’s engine. You see, when you step on the accelerator, the engine revs up, and the serpentine belt spins faster, just like a cheerleader on a sugar rush. This increased speed engages the power steering pump, boosting the hydraulic pressure and restoring your steering comfort.

So, Where’s the Glitch

Here’s the catch – when your car is idling or moving at a snail’s pace, the engine RPM is low, and consequently, the serpentine belt’s rotation speed decreases. This means the power steering pump isn’t receiving enough oomph to provide adequate assistance. That’s why you feel like Frodo in Mordor while trying to turn the wheel at slow speeds but suddenly gain the strength of Thor when you hit the accelerator.

Don’t Fret, It’s (Usually) Fixable

The good news: power steering that only works when accelerating is often a fixable issue. In most cases, the culprit is a worn-out or loose serpentine belt. Over time, these belts can stretch, crack, or lose grip, causing all sorts of trouble. Fortunately, replacing the belt is usually a straightforward and relatively inexpensive fix that can restore your power steering to its former glory.

A Word from Your Friendly Mechanic

While a worn-out serpentine belt is the likely suspect here, it’s always a good idea to have a professional mechanic take a look. They can ensure there are no other underlying issues, such as a failing power steering pump or a leak in the system. Remember, it’s better to nip these problems in the bud before they escalate into something more severe. Plus, a mechanic’s expert touch will leave you with peace of mind, knowing your vehicle is in tip-top shape.

Now that you’ve uncovered the secret behind power steering that only works when accelerating, you can impress your friends with your newfound knowledge. Just remember, when life gives you a stubborn steering wheel, it’s time to check that serpentine belt and give it the TLC it deserves. So hit the gas, feel the power, and steer your vehicle with the grace of a ballet dancer – with or without acceleration!

 Power Steering Only Works When Accelerating

FAQ: Power Steering Only Works When Accelerating

Welcome to our comprehensive FAQ on the common issue of power steering only working when accelerating. If you’ve noticed this problem with your car, fear not! In this FAQ, we’ll address all your burning questions and provide the answers you need to get your power steering back in top shape. So, let’s jump right in and clear up any confusion you may have!


How do I know if my power steering pump is failing

If your power steering only works when you accelerate, it could be a sign of a failing power steering pump. Look out for symptoms such as heavy steering at low speeds, a whining noise when turning the steering wheel, or difficulty turning the wheel altogether. It’s best to have a professional mechanic inspect your power steering system to determine if the pump is indeed the culprit.

Can power steering lines get clogged

Yes, power steering lines can become clogged over time, leading to reduced or intermittent power steering functionality. Build-up of debris, sediment, or even old power steering fluid can obstruct the fluid flow in the lines. If you suspect a clog, try flushing the system and replacing the fluid. However, if the issue persists, it’s advisable to seek professional assistance.

How do I know if my rack and pinion or power steering pump is bad

Determining whether your rack and pinion or power steering pump is at fault can be tricky. Signs of a failing rack and pinion system include excessive play in the steering wheel, leaks, or uneven tire wear. On the other hand, power steering pump issues can manifest as difficulty turning the wheel, groaning noises, or foaming power steering fluid. To accurately diagnose the problem, it’s best to consult a qualified mechanic.

Why is my car not holding power steering fluid

If your power steering fluid seems to be disappearing, there may be a leak in your system. Leaks can occur due to worn-out seals, damaged hoses, or even a leaking power steering pump. Without sufficient fluid, your power steering won’t function properly. You may need to conduct a visual inspection of your power steering components or have a professional mechanic pinpoint the source of the leak and repair it.

How do you know if your power steering line is clogged

A clogged power steering line can cause your power steering to only work when you accelerate. You might notice difficulty turning the wheel or a jerky steering response. Other telltale signs include foaming or dark power steering fluid or a burning smell. If you suspect a clogged line, it’s crucial to have it addressed promptly to avoid further damage to your power steering system.

Why does my power steering only work when I accelerate

Ah, the age-old mystery of power steering that only kicks in when you hit the gas. There could be a few reasons for this amusing phenomenon. One possibility is that the power steering pump isn’t generating enough pressure at low RPMs, but the increased RPMs while accelerating provide the extra force needed for the system to work. Another possibility is a faulty bypass valve or a clogged system, limiting fluid pressure and flow. To unravel this mystery, it’s best to consult with an experienced mechanic who can diagnose and resolve the issue.

What causes air in the power steering system

The presence of air in your power steering system can disrupt the proper flow of fluid, resulting in erratic or inefficient power steering performance. Air can enter the system through loose fittings, damaged hoses, or during fluid replacement if not done correctly. Bleeding the system is typically required to remove any trapped air and restore proper functionality.

How do you diagnose power steering problems

Diagnosing power steering problems requires a combination of visual inspection and understanding the warning signs. Look out for symptoms like difficulty turning the wheel, unusual noises, foaming or discolored power steering fluid, or leaks. Conduct a thorough inspection of the power steering components, including the pump, lines, and rack and pinion system. However, diagnosing power steering issues can be complex, so it’s wise to seek the expertise of a qualified mechanic to accurately identify and fix the problem.

How do I know if my rack and pinion bushings are bad

Faulty rack and pinion bushings can contribute to power steering issues. You might notice excessive play or looseness in the steering wheel, a clunking noise when turning, or uneven tire wear. Visually inspect the bushings for signs of wear or damage, such as cracks or deterioration. If you suspect that your bushings are bad, it’s best to have them replaced promptly to avoid further damage to your power steering system.

Why does my power steering work intermittently

Having power steering that works intermittently can be frustrating and unpredictable. This issue can stem from various causes, such as a failing power steering pump, a faulty pressure control valve, or a loose belt. Before jumping to conclusions, have a professional mechanic evaluate your power steering system to pinpoint the exact cause and provide the necessary repairs.

What causes hard steering at idle

Experiencing hard steering when your car is at idle can make maneuvering a challenge. The most common culprit behind this issue is a worn-out power steering pump. When the pump fails to generate sufficient pressure, it becomes difficult to turn the wheel, especially at low speeds. Seek the assistance of a qualified mechanic to diagnose the problem accurately and restore smooth, effortless steering.

How do you know if you have air in your power steering

If you suspect that air has infiltrated your power steering system, there are a few telltale signs to watch out for. Unusual noises, such as groaning or whining when turning the wheel, can indicate air in the system. Additionally, erratic or jerky steering response, coupled with foaming or discolored power steering fluid, may point to trapped air. To resolve this issue, bleeding the system is typically necessary to remove any air and ensure optimal power steering performance.

What are some common steering faults

Steering faults can come in various forms and cause a range of issues. Some common steering faults include loose or worn-out steering components, misaligned wheels, faulty power steering pumps or lines, and damaged rack and pinion systems. Identifying the specific fault causing your steering issues requires a professional evaluation to accurately diagnose and address the problem.

How long does it take to get air out of power steering

Getting air out of your power steering system can take some time and patience. The process typically involves turning the steering wheel back and forth while the vehicle is idling, allowing the air to escape. However, the duration can vary depending on the size of the system and the amount of air trapped. In general, properly bleeding the power steering system can take anywhere from 30 minutes to an hour.

What’s the most common cause of heavy steering

The most common cause of heavy steering is often attributed to a worn-out power steering pump. When the pump fails to generate sufficient pressure, it becomes difficult to turn the wheel smoothly. Other potential causes include low power steering fluid levels, a faulty pressure control valve, or issues with the rack and pinion system. To address heavy steering, it’s best to have a qualified mechanic inspect your power steering system and make the necessary repairs.


We hope this comprehensive FAQ has shed some light on the perplexing issue of power steering that only works when accelerating. Remember, while tackling power steering problems might seem daunting, expert help is just a phone call away. Whether it’s a faulty power steering pump, clogged lines, or air in the system, trust a professional mechanic to diagnose the problem accurately and have you back on the road with smooth and effortless power steering in no time. Drive safely!

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