Do you get the Honda Accord humming noise when accelerating? A Problem with wheel bearings is the main reason for the humming noise from the Honda Accord.
The Honda Accord fake engine noise may be a symptom of failed transmission. Some other causes also can create this issue that we’ll share throughout this post.
Whenever you get some irregular noise, don’t leave it unfixed. Taking note with more profound attention at the early stage of the problem will help you avoid hefty penalties. The unexpected noise will harm the engine if you drive the car with this issue for a long time.
Knowing the reasons and fixing methods of the problem is a simple way to manage it. So, let’s proceed and learn them in detail.
What Makes Honda Accord Humming Noise When Accelerating?
We learned in brief from the intro that Honda Accord buzzing noise when starting typically happens for defective wheel bearings and transmission failure.
Sometimes, you can assume this buzzing or humming noise is coming from the engine. Checking the RPM meter will help you confirm that the wheel bearings are creating this noise.
Apart from the wheel bearings and transmission system, you can get the Honda Accord whining noise when accelerating for a damaged water pump and rough tires. Some other reasons also may be responsible for this irregular noise. Get them below:
Honda Accord Humming Noise When Accelerating – Reasons & Fixing
Before you get into the detailed discussion, we’ve made a summary table of the Honda Accord squeaking noise when accelerating:
| Reasons | Fixing Methods |
| Damaged/Malfunctioning Wheel Bearings | Change the faulty wheel bearings |
| Transmission failure | Repair or change the transmission system |
| Faulty Water Pump | Repair or change the water pump |
| Rough Tires | Replace shock absorbers & suspension |
| Blocks On The Tires | Use tires with small/medium blocks |
| Low/Bad Transmission Fluid | Replace the transmission fluid |
Damaged/Malfunctioning Wheel Bearings
The defective or malfunctioning wheel bearings are the most common reason for a 2013 Honda Accord whining noise when accelerating. These wheel bearings communicate the maximum parts of a car.
When these wheel bearings become faulty or perform poorly, they can make a Honda Accord squeaking noise when accelerating.
How To Fix It
Did you get the answer to the question: ‘why is my Honda Accord so loud?’ Bad or nonfunctional wheel bearings are the cause to make erratic noise. So, check the wheel bearings. If you find any inconsistencies, replace them with new bearings to fix the issue.
It means a damaged wheel bearing is responsible for this noise. Replacing the damaged or problematic wheel bearing is the best possible solution for this issue. If you can’t do it independently, consult an Auto Pro XYZ to complete the job professionally.
Transmission Failure
Failed transmission is the second largest cause of a 2008 Honda Accord whining noise when accelerating. When the transmission system becomes faulty or rotten, it creates additional noise. Indeed, it’s a warning sign that the system is facing something wrong and requires attention.
How To Fix It
You learned that the Honda Accord makes whining noise when accelerating. So, repairing the transmission system will fix the issue. Otherwise, you must replace it when it’s not repairable.
Faulty Water Pump
A defective water pump is a reason and an excellent answer to the question: ‘why is my Honda Accord making a rattling noise?’ You may know that every car has a water pump with its cooler. It causes issues like a humming sound, stem, corrosion, and high temperature if it gets lousy.
How To Fix It
Replace or repair the defective water pump to fix a 2011 Honda Accord whining noise when accelerating.
Rough Tires
Rough tires are responsible for a 2007 Honda Accord whining noise when accelerating. Wearing out of the tire cupping creates abnormal noises like humming or whining when you press the accelerator.
How To Fix It
Fix the issue by replacing the shock absorbers and suspension components. It could be tricky, so it’s best to solve the problem by bringing your car to an expert mechanic.
Blocks On The Tires
An issue like a 2010 Honda Accord whining noise when accelerating isn’t prevalent. But you may experience it for larger blocks on the tires. Some tires – significantly cheaper ones come with a pattern of big blocks. If you buy and use low-cost tires, you will face this issue.
How To Fix It
Check all other possible reasons for the humming sound. If everything is working fine, replacing the tires will fix the issue. And, of course, choose high-quality and premium tires to get the optimum output.
Low/Bad Transmission Fluid
Believe it or not, lower transmission fluid levels make the Honda Accord humming noise when accelerating. The same issue may happen for bad or old transmission fluids. Both reasons harm the engine's internal parts if you leave the issue undone.
How To Fix It
Change the bad or old transmission fluid. Or fill the fluid reservoir if it’s at low levels.
Low Transmission Fluid: The primary cause for whining when in gear is low transmission fluid for both manual and automatic transmissions. The transmission's internal components are not appropriately lubricated if the fluid is too low.
What Are The Symptoms Of A Bad & Worn Out Transmission System?
A worn-out and lousy transmission system warns with some symptoms. As they’re linked with the Honda Accord humming noise, you should know them. We’ve made a table with the signs to make it concise:
| Symptoms Of Worn Out Transmission | Signs Of A Bad Transmission |
| Difficult to shift gears | Difficult to shift gears |
| Burning Smell | Burning Smell |
| Neutral Noises | Unusual Noises |
| Sliding Gears | Altered Transmission Fluid color |
| Exhausted Clutch | A Lower Fluid level |
| Dripping Fluid | Slow Performance |
| Check Engine Light | Check Engine Light |
| Grinding/Shaking | Grinding/Shaking |
Frequently Asked Questions – FAQs
How Does A Transmission Create A Humming Noise?
A defective transmission system can make a humming or whining noise. Also, this unexpected noise may come out of leaking, low-lever, and older transmission fluid. The noise warns you of an internal issue that triggers damage to the transmission system and the engine if you don’t fix it at the earlier stage.
Why Is A 2020 Honda Accord Making A Humming Noise?
The most common reason for the humming noise on the Honda Accord has damaged wheel bearings. Some other causes include rough tires, big blocks on the tires, defective transmission systems, etc.
How To Avoid The Transmission System From Humming?
A broken drive shell and slippery clutch are the critical reasons for the transmission humming sound. Check the fluid color. If it’s with an altered color other than normal/red, replace the fluid. Also, ensure enough transmission fluid if the levels are lower.
How Do I Diagnose My Car With A Transmission Noise?
To diagnose the transmission noise, run the engine placing the car in the neutral position with an engaged clutch. Increase the engine revolutions gradually up to 3000RPM. If the higher speed rises, the noise it’s happening to the transmission. But if the noise reduces with higher speed, it’s not for the transmission system.
How To Stop Humming From Tires?
Uneven wear, blocks, and damaged wheel bearing make the humming from tires. You must fix all these reasons to avoid any odd noise from the tires. Also, drive your car with the manufacturer’s recommended rotations to stop the humming noise.
The Bottom Line
Many reasons are linked to the Honda Accord humming noise when accelerating. The faulty wheel bearings and flawed transmission systems are the leading causes.
Also, other reasons are responsible for the weird noise in the Honda Accord. You’ve learned them all with the fixing tips. So, you’re all set to drive your car without any irritating noises.
We suggest you pay serious attention whenever you get any irrelevant sounds. Fix them immediately to avoid further issues and save your car from engine and transmission damage.
If you think the issue is complicated and can’t fix it, consult your dealer or an expert car mechanic for the best solutions.