Noisy whirring sound when I step on the gas pedal.

noisey WHIRRRING sound when I step on the gas

My car has 9600 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hello, thanks for writing in to YourMechanic. It sounds like you may have a problem with the serpentine belt driven accessory like a tensioner pulley or the alternator bearing is bad. If you’d like to have the noise from the engine diagnosed, consider YourMechanic, as one of our mobile technicians can come to your home or office to isolate possible causes and make then necessary repairs.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

The engine of the car makes a whirring sound when accelerating. The more you accelerate, the more the whirring increases. It`s time to get your car in for a checkup! There might be a number of reasons for this, including a bad water pump, low levels of power steering fluid, and a bad air conditioner compressor.
1. A high-pitched squeal when accelerating. If you notice a loud squeal when accelerating, especially if your car is just warming up, it could be that you have a loose or worn fan belt. Usually if your fan belts are worn, it could mean your timing belt needs to be replaced as well.
A loud noise coming from your vehicle when you accelerate, particularly one that sounds similar to a lawn mower is most likely due to an exhaust system leak.
Definitions of whirring. sound of something in rapid motion. synonyms: birr, whir, whirr. type of: sound. the sudden occurrence of an audible event.
Whirring or Whining

These sounds can indicate a number of different problems, including a failing water pump, a bad power steering pump, low power steering fluid, a failing alternator, or problems with the air-conditioning system.

Loud squeaking or squealing noise while accelerating could mean there`s a problem with your engine belt. It could mean the belt`s loose or worn. Or it could mean that one of the belt`s pulleys is starting to fail. Loud rumbling noise when accelerating might suggest there`s a problem with your exhaust system.
Belt noise can mean the belt is worn or loose. Belt noise can also come when one of the pulleys the belt is riding on starts to fail. When the belt no longer moves smoothly along the pulleys, it makes a noise when the car is accelerating. The other noise you might be accustomed to is that of a loud exhaust system.
A loose or damaged belt in your car`s engine can cause a loud, whining noise that can be mistaken for an airplane. This noise is usually most noticeable when you accelerate. If the belt is loose, get it tightened, otherwise, if it is damaged, change it.
Low Transmission Fluid: For both manual and automatic transmissions, the primary cause for whining when in gear is low transmission fluid. If the fluid is too low, then the internal components of the transmission are not lubricated properly.
Wheel bearings can also be checked by elevating the vehicle and spinning each wheel by hand. If a whirring noise is heard, or if the wheel exhibits looseness when rocked by both hands, that bearing is certainly faulty.
Typically, hard drives will make low-pitched whirring or whining noises – particularly when they`re booting up or accessing/storing data – or clicking noises. These are usually perfectly normal and not a cause for concern.
Key Takeaway Rattling noises when accelerating can be caused by a number of issues, including damaged or worn-out suspension components, bad wheel bearings, low transmission fluid, loose heat shields, and faulty engine components.
Examples of whirring sound

A homeless man is burned to death in a cave by something emitting a high-pitched whirring sound. This example is from Wikipedia and may be reused under a CC BY-SA license. The ground dove flushes in a manner similar to a partridge while its wings produce a whirring sound.

eolian sound, also spelled Aeolian, sound produced by wind when it encounters an obstacle. Fixed objects, such as buildings and wires, cause humming or other constant sounds called eolian tones; moving objects, such as twigs and leaves, cause irregular sounds.
A “whirring” noise while decelerating at any speed is most likely caused by bad pinion bearings or loose pinion bearing preload. This condition is typically always diagnosed as a bad ring and pinion gear.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Car makes a metal rattling sound when stepping on the gas. It has gotten worse over time?
ANSWER : Hi there:

There could be multiple issues causing the rattling noise when you accelerate on your Mazda 6 ranging from a loose bracket, to an exhaust pipe that is cracked or even the serpentine or drive belt system that’s causing these symptoms. It’s also possible that motor mounts are starting to show signs of wear. The only way to really know for sure what’s causing this issue is to have a local mobile mechanic complete a car is making a noise inspection.

I have a 1998 Ford Contour. Step on gas pedal sounds like flipping, popping sound no loss of power but runs roughs.
ANSWER : The noise could be anything from exhaust leaks to accessory drive problems or internal (valve train for instance) faults. It is possible that diagnostic trouble codes have set and a mechanic should attempt to retrieve those first using an appropriate scan tool. If there are no trouble codes if you were to request a diagnostic from YourMechanic, the protocol is pretty standard: a certified mechanic will test for ignition, fuel system, air induction and/or engine sensor problems and these possibilities are tested, in a sequence, using a diagnostic "decision tree". Often, the problem is limited and straightforward, that is easily repairable. There is a good chance of that so I recommend that you request a rough running diagnostic and the responding certified mechanic will travel right to your location and get this diagnosed and resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic.

Noisy whirring sound when I step on the gas pedal.
ANSWER : Hello, thanks for writing in to YourMechanic. It sounds like you may have a problem with the serpentine belt driven accessory like a tensioner pulley or the alternator bearing is bad. If you’d like to have the noise from the engine diagnosed, consider YourMechanic, as one of our mobile technicians can come to your home or office to isolate possible causes and make then necessary repairs.

Why doesn’t car start after running out of gas girlfriend ran gas out of car now won’t start plenty of gas in tank doesn’t sound l
ANSWER : Fuel pumps rely on liquid gasoline for cooling. Consequently, it is recommended to keep the fuel tank at least 1/4 full to prevent the fuel pump from overheating. If the pump is run to the point of being dry, the seal on the impeller can overheat and get damaged. Even if the pump subsequently runs, as you report your does, it cannot develop enough suction to pick up fuel due to the seal damage. That is possibly what has happened in your case but it should be confirmed prior to replacing the fuel pump. In your circumstance the recommended service is fuel pump replacement but if you request that, the responding certified mechanic will do enough tests to confirm that there is no other possible explanation for the failure. There is a quick and direct way to determine if the problem is lack of fuel. Procure a can of "starter fluid" from any department store. Using the material cautiously (it is highly flammable; keep away from flames or sparks), introduce some of the fluid into the intake of the engine while you engage the starter motor. If the vehicle starts and runs briefly, then you know for sure the problem is fuel starvation of course almost undoubtedly caused by the pump failing. Fuel pump replacement can be accomplished in the field, right at your location, if you desire that service.

Pressed the gas pedal and the car didn’t move forward. It rather rolled backwards because the vehicle was on a hilly place. What cold have happened?
ANSWER : Hi there. If a battery cable is loose or corroded the computer and components in the vehicle will shut down some circuits that are unable to get a good connection. If the vehicle makes the issues again then I recommend seeking out a professional, such as one from Your Mechanic, to help you to diagnose an electrical issue that may be occurring.

When I start the car up I hear a hummimg sound. Even when I press the gas pedal I can hear it. What could this humming sound be?
ANSWER : Hi there:

In many instances, a humming noise will be caused by a loose serpentine or drive belt, the power steering pump (which the other mechanic determined wasn’t so) or even a vacuum leak perhaps within the EVAP or EGR emissions system. However, since all of these would be guesses, it’s best to have a professional mobile mechanic complete a car is making a noise inspection first, so they can eliminate the guess work and determine where the noise is coming for; and the right repairs can be made.

My car has a high pitch chirping sound when accelerating. 2010 Subaru Impreza
ANSWER : Hi – your Impreza has a turbocharged engine for enhanced performance. This produces pressurized air for the engine, increasing power. To avoid over-pressurizing the engine, there are boost pressure controls, and a "waste gate" port to vent over-pressure – all electronically controlled. This can produce "chirping-like" noises under acceleration, especially during and after gear changes for manual transmission cars. This is normal behavior, and shouldn’t cause concern. If it seems excessively loud, I would recommend an engine inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

Supportive bar attached to brake pedal interrupts proper braking process
ANSWER : It’s possible to have someone alter the brake pedal or adapt a brake pedal from a different vehicle. You may call around to some customization shops to see if anyone is interested in taking on the project. But first, I would try reaching out to the selling dealer with your concern – especially since it is a new model. Good luck.