Skip the auto shop - Our mechanics make house calls

Q: A tin metal like rattling sound when I accelerate from a low speed.

asked by on

A metal rattling sound when I accelerate from a slow speed or from a complete stop. The rattling sound is temporary and goes away when I reach 30 - 40 mph. Anymore acceleration to speeds beyond that do not make this sound. I also feels like something is holding down the acceleration of the vehicle during the time I hear that rattling sound. It comes from the front side near to the tires.

My car has 82000 miles.
My car has an automatic transmission.

A: Hello. My first inclination would be to say...

Hello. My first inclination would be to say, "torque converter". That is easy to rule in or out as you might be able to get a "free" diagnosis from a transmission shop. I’m not recommending you repair it there but it is not unreasonable to seek advice. The reason for my first inclination is you mention a degradation in acceleration. If the torque converter has an internal fault you could experience poor acceleration along with noise. To rule out obvious simple causes, check the fluid level in the transmission per the instructions in the owner’s manual (follow carefully; otherwise reading will be meaningless). Whether it is the torque converter or another cause (front wheel drive, or engine related for instance), YourMechanic could give you a definitive diagnosis of the rattling sound, after an inspection, and indicate your repair options. Good luck with this.

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: Trickling water noise under hood

The sound you're hearing may be caused by an exhaust leak. A small exhaust leak close to the engine makes a sound similar to what you're describing. It will normally only occur during acceleration. You may be able to pinpoint...

Q: 2014 ford fusion service advancetrac message; ads, traction control, skid control and airbag lights lit up all at same time. Is th

ABS, traction and stability control systems rely on input from a number of sensors to function properly. Faults can be in any one of them from the brake light switch, steering angle sensor, wheel speed sensor, or up to a...

Q: valve body swap from a 5R44E to a 4R44E.

Yes you can swap out the valve bodies as they will bolt right up, however, the computer will need to be replaced for the transmission controller as it is programmed for a 5 speed and not a 4 speed. The...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...