Q: metallic buzzing/vibrating noise when accelerating.

asked by on September 11, 2017

There is a metallic buzzing/vibrating noise when I accelerate. Also happens when cruising in a higher gear and hitting the gas slightly. Sounds like a heat sheild, but they all seem ok. Used to think it was the exhaust vibrating against the gas tank heat sheild (custom exhaust didn't fit quite right and real close to it) I got it fixed at a shop, but now the noise seems louder. Can't tell where it's coming from. Sometimes sounds like it's at the front of the car under the dashboard. Sometimes sounds like the exhaust at the back. Only the axle back exhaust was swapped. Could it be transmission? Dont seem to feel the vibrations, just the noise. 2015 lancer gt at 30k miles with manual transmission.

My car has 30127 miles.
My car has a manual transmission.

Can you create the noise when the vehicle is stationary, in neutral, at any engine RPM level? If not, then the origin is more likely to be the clutch/transmission especially if the sound is closer a buzz/whine than "metallic" buzzing alone. There are remote wireless, miniature clip on microphones that mechanics can use to pinpoint the origin of noises and vibrations when the source is not obvious. There are multiple of them and they feed to a receiver in the passenger compartment. While driving the mechanic just switches between the pick-ups, again distributed throughout the car, thereby pinpointing the origin of the noise. There are other techniques to pinpoint the noise as well. If you desire a diagnostic to pinpoint the origin of the noise, please use YourMechanic’s vehicle noise diagnostic service request page and the responding certified mechanic will definitely find the origin of the noise and explain your repair options in detail. If you have further questions or concerns, do not hesitate to re-contact YourMechanic.

Was this answer helpful?
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

Get a quote

What others are asking

2009 chevy malibu, traction light on , service esc, and reduce engine power comes on after 30 min of driving.

There is likely an electrical malfunction that is intermittent but "heat" related. That is, once the engine warms up, the malfunction occurs. Sometimes ignition coils or crankshaft position sensors will do this but there are quite a few possibilities. In...

Rats eating air filter and particles falling into the carbureator?Have dogs & cats-avoid poison if possible!

Believe it or not, this is not the first time I've dealt with this. Mice and rats can do a lot of damage to a car, especially if it is parked for an extended period of time. It may be...

Battery light is on

Hi, this comes up often. Your car battery light being on is an indication that your engine is not getting enough energy. This could be because of a malfunctioning alternator or a battery going bad. I suggest having a certified...

Related articles

A Buyer’s Guide to the 2012 Mitsubishi i-MiEV
Cute Cute pretty much sums up the 2012 Mitsubishi i-MiEV. It’s a super compact electric car capable of driving for quite some distance on battery power alone. However, the lack of a gasoline engine means that you might not want...
The Best Used Cars to Buy for Families
If If it’s time for you to search for the top used cars specifically for families, check out the list we’ve put together of the top five. The list of must-haves Typical items that families are looking for in their...
A Buyer’s Guide to the 2012 Mitsubishi Eclipse
2012 2012 marks the end of an era for the Eclipse and Mitsubishi sends the sporty little car off in style. As affordable sports cars go, the Eclipse has served its segment well with stylish looks, respectable performance, and a...