☰
GET A QUOTE

Q: Whirring noise at idle,goes away when I accelerate, removed serpentine belt and still made noise. ...PLEASE LET ME KNOW WHAT IT IS

asked by on January 28, 2018

I removed serpentine belt because I thought it was the alternator and it still made noise, I thought it could be the exhaust so I swapped the manifold and nothing. My most recent was a brand new torque converter because the noise seemed to be coming from that area but whirring noise still came on bUT only while at idle. It only comes on after engine warms up. Whirring Noise is driving me crazy !! Here's a link that i recorded and posted on YouTube

https://youtu.be/E913yTwmZMc

Please tell me what it is, BTW engine has no misfires runs very smooth I just want to know what the noise is

My car has 40000 miles.
My car has an automatic transmission.

Recommended Services

Car is making a noise Inspection $94.99 - $114.99 Get a Quote
Or For Any Other Auto Repairs Get a Quote

It might be the idle air control (IAC) valve/motor. Inasmuch as the noise briefly continues after shut down the cause is not mechanical in nature but rather is in an electrical component or something involving movement of air. The noise is very marked and consequently if you request a vehicle noise diagnostic, the responding certified mechanic will definitely find the origin of the noise, whether IAC related or not. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Chevrolet
1999
L4-2.2L
S10
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Airbag light stays on
Hello. There are lots of reasons why your Air Bag Light is staying on. Some of these reasons include interference with an electrical switch, or even a faulty wire. The Air Bag Light will need to be diagnosed (https://www.yourmechanic.com/services/air-bag-light-is-on-inspection) by...
Read more
SUV hesitates when air on
Hi. The AC compressor runs off the serpentine belt which is driven by the engine. Therefore, turning on the AC puts a load on the engine. If there is a problem with the compressor, this may max the engine more...
Read more
Engine chugging at low speeds when the weather is bad
It is very possible that moisture is getting into the connectors of the engine control module (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-engine-control-module-ecm). The connectors should be checked and cleaned if necessary. Di-electric grease can be used to help seal the connectors and keep the moisture...
Read more
There is a vibration in the front driver's side of the truck at 38-45 mph
Good diagnostic work! You've narrowed it to a specific speed range, not torque sensitive, and to a specific corner of the vehicle. I suspect an "out-of-round" tire that happens to be sensitive at 38-45 mph as you note. Beyond that,...
Read more
how important is it to replace wire harness when installing new throtle body ?
Hi there. I've always been a proponent of replacing all electrical harnesses connected to major mechanical components during replacement service. In most cases, issues with a throttle body are misdiagnosed due to electrical malfunctions. It's a minor cost to purchase...
Read more
Can't turn off immobilizer on 2002 Jetta 2.0l.
The Immobilizer System Control has failed and is stuck in lock mode. I recommend either flashing the Immobilizer System Control or replacing it. If you need further assistance with your engine not starting (https://www.yourmechanic.com/services/car-is-hard-to-start-inspection), then seek out a professional, such...
Read more
What's the average cost with labor to repair a throttle body on a chrysler 200
Hi there. It really depends on what exactly you need replaced; or what's wrong with the throttle body or fuel system. If it's the electronic throttle controller (https://www.yourmechanic.com/services/throttle-controller-replacement) then the replacement cost can range from $300 to $1,500 depending on...
Read more
Car starts and idles but idle fluctuates but the car stays on. After bringing the rpms up to 4-5K the car dies on deceleration.
Since you are getting different codes and engine is stalling you may have a sensor issue along with ignition issues like a defective coil or compression problem in cylinder number 5. I would suggest getting a mechanic like one from...
Read more
Honda Pilot sputtering, shaking, engine light flashing
Generally, the check engine light (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) comes on when something fairly serious is going on with the vehicle. This can happen for many different reasons such as a faulty mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement), a faulty O2 sensor (https://www.yourmechanic.com/services/oxygen-sensor-replacement), a...
Read more

Related articles

A Buyer’s Guide to the 2012 Chevrolet Equinox
The The 2012 Chevrolet Equinox stands out in the small SUV class for its affordable price, its high-powered engine, and its plethora of features. While the Honda CR-V has led this class for years, the Chevrolet Equinox is positioned to...
Read more
2005 Kia Sorento vs. 2005 Chevrolet Blazer: Which One Should I Buy?
SUVs are great for playing out in the mud, taking kids and friends around to different places, as well as just running errands around town. While they are not known to be terrific for gas mileage, that problem is negated...
Read more
The Top 5 Selling Cars in Georgia in 2012
Georgia Georgia offers drivers a mild climate with very little snow, but rain is a major factor. Previous best-selling cars in the area, such as the Escape, Fusion and Camry, have shown that residents prefer a mix of both SUV...
Read more

Browse other content

Cars
Maintenance
Services
Estimates