Q: My car makes a weird squeaking sound when I hit the accelerator.

asked by on

My car makes this weird squeaking sound when I hit the accelerator
My car has an automatic transmission.

We had a 2012 Forte and recently traded it for a 2016 Forte. Great cars. Squealing under hood can be caused by a few different reasons. The serpentine belt can be a common cause. The A/C compressor, water pump, alternator, and power steering pump are driven by 1 serpentine belt. Since it is such a large belt, a belt tensioner helps to keep the belt tight and easy to remove and replace as well. If the belt is worn (dry, cracked,glazed) it can slip on acceleration and make a squealing sound. Also, if any of the pulleys on the alternator, p/s pump,etc, are worn or loose, they can cause the belt to squeal.

Have a certified technician, like one from YourMechanic, come inspect the vehicle to isolate the exact cause of the squealing sound.

Was this answer helpful?

This is a common sign of a loose or worn belt. Over time, your car’s engine belts may become worn causing them to stretch. When this happens as you press the gas pedal and the belt goes from a relatively low speed (at idle or when first starting the car, no speed at all) to a much higher speed as the engine accelerates, this can cause the belts to squeak. This can happen when they stretch due to the fact that the pulleys on your car’s engine are turning faster than what the belt can keep up with when it is not tight against the pulley. This can also happen in extremely cold weather conditions due to the fact that the rubber belts become slightly brittle and less pliable in cold weather. I would recommend having an expert from YourMechanic come to your location to diagnose and tighten or replace your belts.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My car makes a weird squeaking sound when I hit the accelerator.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Fuel pump relay location.

Relays are always a good location to test a system. You are on the right track in that respect. Unfortunately, your car does not have a traditional fuel pump relay. It has what is known as the Fuel pump driver...

Q: Q: Engine

Hi there: Anytime the engine is low on oil to the point that you hear a grinding noise, it's typically an indication of serious internal damage. When the tick happens, it's usually cylinder head hardware, such as lifters or valve...

Q: Squeaking at lower speeds

No, this is not a normal condition. If the parking brake is out of adjustment or there is damaged parking brake hardware on one or both rear wheels, this type of noise can occur. If it is determined that...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...