Skip the auto shop - Our mechanics make house calls

Q: Car producing a rattling sound

asked by on

My car started to produce a rattling sound when the transmission is on drive while pushing the brakes. Could this be a damaged heat shield, damaged catalytic converter or something else? This is a recording of the sound if needed: https://www.dropbox.com/s/abeln32n19240f8/Recording%202.m4a?dl=0
My car has an automatic transmission.

Your 2015 Kia may use a brand new dual cutch transmission, which works differently than a traditional automatic transmission. That sound, combined with the conditions under which you hear it, makes me think you have a problem with your flywheel. If it’s a traditional automatic transmission, then it could be a problem with the flex plate or torque converter. Either way, to be sure that this problem doesn’t worsen, you should have the noise inspected by a qualified professional, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Feels like something it grinding

It sounds like you may have a failing or worn out wheel bearing. A wheel bearing will usually fail due to pitting or small damage on the surface of the rollers or the bearing race. Both the surface of the...

Q: White goo/gunk under radiator cap

Hi, thanks for writing in. I'd be happy to provide my insight. This is often times a sign of a blown head gasket, however if this were the case your car would be overheating. I would recommend checking the oil...

Q: Car makes noise like howling wind while Idling.

The power steering pump may whine if the fluid level has become too low from a leak or you may hear a squealing noise if the belt has become too slack. While the belt is off would be a good...

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.