What to Do When You Hear a Knocking Noise While Driving - Andrews Car Centre - Local Car Garage Lincoln
What to Do When You Hear a Knocking Noise While Driving - Andrews Car Centre - Local Car Garage Lincoln
Hearing a knocking noise while driving can be unsettling and may signal an underlying issue that needs attention. Whether it’s a faint tapping or a loud thud, strange noises from your car are often an early warning sign of mechanical problems that could worsen if left unaddressed.
At Andrews Car Centre in Lincoln, we understand the importance of addressing these noises quickly to prevent further damage and ensure your safety. This guide will walk you through the potential causes of knocking noises and explain the steps you should take if you encounter one while driving.
Why Is My Car Making a Knocking Noise?
Knocking noises can stem from various parts of the car, but they most commonly originate from the engine, suspension, wheels, or exhaust system. The severity of the issue can range from minor wear and tear to serious mechanical faults.
Here are some common culprits behind knocking noises:
- Engine Knocking – Caused by improper fuel combustion or low oil levels.
- Suspension Issues – Worn-out shock absorbers, ball joints, or control arms can cause knocking over bumps or while turning.
- Loose Exhaust Components – A loose exhaust pipe or muffler can rattle and knock while driving.
- Wheel Problems – Loose lug nuts or damaged wheel bearings can result in knocking noises.
- Brake Components – Loose brake pads or worn calipers may produce knocking sounds, especially during braking.
Step-by-Step Guide: What to Do When You Hear a Knocking Noise
1. Stay Calm and Pay Attention to the Noise
- As soon as you hear a knocking sound, remain calm and focus on identifying the noise's location, frequency, and intensity.
- Ask yourself:
- Is the noise constant, or does it only happen when accelerating or braking?
- Does it occur when driving over bumps or on uneven surfaces?
- Can you feel vibrations through the steering wheel or floor?
The answers to these questions can help narrow down the source of the problem.
2. Reduce Speed and Drive Safely
- If the knocking noise persists, reduce your speed and avoid hard acceleration, braking, or sharp turns.
- Continuing to drive aggressively can exacerbate the issue and lead to further damage.
3. Pull Over and Inspect the Car
- Find a safe location to pull over and conduct a quick visual inspection.
- Check the following areas:
- Tyres and Wheels – Ensure lug nuts are tight, and there are no visible punctures or damage.
- Exhaust System – Look for loose or dangling components under the car.
- Engine – Check for oil leaks or unusual smells under the bonnet.
- Suspension – Examine for signs of damaged or loose suspension parts.
If nothing obvious is detected, proceed to the next step.
4. Test the Car in a Controlled Environment
- After pulling over, drive slowly and listen carefully for the knocking noise.
- Drive on a smooth, straight road to determine if the noise occurs consistently or only under certain conditions (such as during turns or over bumps).
5. Don’t Ignore Warning Lights
- If the knocking noise is accompanied by dashboard warning lights, such as the oil pressure or check engine light, stop driving immediately.
- Continuing to drive with illuminated warning lights can lead to significant engine or mechanical damage.
6. Check the Engine Oil Level
- A common cause of knocking noises is low or dirty engine oil.
- Park on level ground, allow the engine to cool, and use the dipstick to check the oil level.
- If the oil level is low, top it up with the correct grade of oil. If the oil appears dirty or contaminated, schedule an oil change as soon as possible.
7. Book a Professional Inspection
- Even if the noise subsides, it’s crucial to have your car professionally inspected to prevent further issues.
- At Andrews Car Centre, our experienced technicians use advanced diagnostic tools to accurately identify and resolve the source of knocking noises.
We provide:
- Comprehensive diagnostics – Full system scans to pinpoint issues.
- Suspension checks – Thorough inspection of shock absorbers, bushings, and control arms.
- Engine assessments – Oil level checks, spark plug inspections, and more.
- Brake and wheel inspections – Ensuring your wheels, bearings, and brakes are functioning properly.
When to Stop Driving Immediately
In some cases, knocking noises indicate severe mechanical issues that require immediate attention. Stop driving and arrange for recovery if you notice:
- Loud, metallic knocking from the engine – This could signify engine damage or detonation.
- Persistent knocking during braking – This could point to brake failure.
- Severe vibrations – A sign of failing suspension or loose wheels.
- Burning smells or smoke – These can accompany knocking noises from engine or exhaust problems.
Ignoring these symptoms can lead to dangerous driving conditions and costly repairs.
How Andrews Car Centre Can Help
At Andrews Car Centre in Lincoln, we offer expert diagnostic and repair services for all makes and models. Whether your car’s knocking noise is engine-related or suspension-based, we can quickly identify the problem and recommend the best course of action.
Why Choose Us?
- Experienced Technicians – Our skilled team handles everything from minor repairs to major mechanical overhauls.
- State-of-the-Art Equipment – We use advanced diagnostic tools to ensure precise results.
- Transparent Pricing – No hidden fees – just honest, upfront quotes.
- Fast Turnaround – We work efficiently to get you back on the road quickly.
Book an Inspection Today
If your car is making a knocking noise, don’t wait – schedule an inspection at Andrews Car Centre today. Catching the problem early can save you time, money, and unnecessary stress.
📞 Call us now or visit our website to book your appointment.