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How to Fix: Car Juddering When Accelerating

James Butler

Written by

James Butler

Workshop Manager & Diagnostic Specialist

18 years experience · Birmingham, UK

Experiencing your car juddering during acceleration is a common issue among UK drivers. This unsettling problem can stem from various factors, including engine misfires, clutch issues, or wheel imbalances. Addressing these concerns promptly is essential to ensure your vehicle's safety and performance. In this guide, we'll explore the typical causes of acceleration juddering and provide practical solutions. Whether you're considering a DIY approach or seeking assistance from a reliable garage, understanding the root of the problem is the first step toward a smooth driving experience.

Symptoms to Look For

  • Vibrations or shaking felt through the steering wheel or vehicle body during acceleration.
  • Unusual noises, such as clicking or knocking, especially when turning or accelerating.

Common Causes & Costs

Worn or Faulty CV Joints

moderate

CV (constant velocity) joints are crucial for transferring power from the transmission to the wheels. Over time, these joints can wear out or become damaged, leading to vibrations during acceleration. A common sign is a clicking noise when turning.

Estimated cost: £150–£300 per joint replacement

Clutch Slipping

Hard — garage recommended

In manual vehicles, a slipping clutch can cause juddering during acceleration. This occurs when the clutch disc fails to engage properly with the flywheel, often due to wear or contamination.

Estimated cost: £400–£1,000 for clutch replacement

Engine Misfire

Easy — DIY friendly

Misfires occur when one or more engine cylinders fail to ignite the fuel-air mixture properly. This can result from faulty spark plugs, ignition coils, or fuel injectors, leading to jerking or juddering during acceleration.

Estimated cost: £50–£150 for spark plug replacement

Unbalanced Wheels

Easy — DIY friendly

Wheel imbalance can cause vibrations that become noticeable during acceleration. This often results from lost wheel weights or uneven tyre wear.

Estimated cost: £10–£20 per wheel balancing

Step-by-Step Fix

1

Diagnose the Problem

Begin by identifying when the juddering occurs (e.g., during acceleration, at certain speeds, or when turning). Note any accompanying noises or sensations, as these clues can help pinpoint the issue.

2

Inspect CV Joints

Check for torn CV joint boots or grease leaks around the wheel area. Listen for clicking noises when turning, which may indicate worn CV joints. If damage is found, replacement is necessary.

3

Test for Clutch Slipping

In a manual car, drive at a steady speed and then accelerate while in a higher gear. If the engine revs increase without a corresponding increase in speed, the clutch may be slipping and require replacement.

4

Check Spark Plugs and Ignition Components

Inspect spark plugs for wear or deposits. Replace any faulty spark plugs or ignition coils to ensure proper engine firing and prevent misfires.

5

Balance the Wheels

Have your wheels balanced by a professional to eliminate vibrations caused by imbalance. This service is relatively inexpensive and can significantly improve driving comfort.

When to Call a Garage

If you're unable to identify the cause of the juddering or if the issue persists after basic checks, it's advisable to consult a professional mechanic. Complex problems like clutch replacement or CV joint repairs require specialised tools and expertise. Use AGarageNearMe.co.uk to find a trusted local garage that can accurately diagnose and fix the problem, ensuring your vehicle's safety and performance.

Not sure what's wrong with your car?

If you are unsure what is causing the problem, chat with John for a free car diagnostic before spending money at any garage.

Frequently Asked Questions

How do I fix car juddering when accelerating?

Identify the cause, such as worn CV joints, clutch issues, engine misfires, or wheel imbalance, and address it accordingly. Some fixes are DIY-friendly, while others require professional assistance.

What causes car juddering when accelerating?

Common causes include worn CV joints, slipping clutches, engine misfires, and unbalanced wheels. Each issue affects the vehicle's performance during acceleration.

How much does it cost to fix car juddering when accelerating in the UK?

Costs vary depending on the cause. Spark plug replacement may cost £50–£150, while clutch replacement can range from £400–£1,000. Wheel balancing is typically £10–£20 per wheel.

Can I fix car juddering when accelerating myself?

Some issues, like replacing spark plugs or balancing wheels, can be DIY tasks if you have the necessary skills. However, complex problems like clutch or CV joint repairs should be handled by professionals.

Is car juddering when accelerating dangerous to drive with?

Yes, driving with a juddering car can be unsafe, as it may indicate serious issues affecting vehicle control and safety. It's important to address the problem promptly.

Information is for guidance only. Always prioritise safety — if unsure, consult a qualified mechanic.