Skip the auto shop - Our mechanics make house calls

Q: Rattle sound from Throttle when I give it gas and then it goes away when I let off...

asked by on

The sound comes and goes I hear it with the driver side window down coming from under center, I hate to think it may have anything to do with the transmission, because that is working fine no troubles at all. I only hear this rattle when I give it gas and then sometimes it makes no sound. It also way as soon as I let off the gas pedal, could it be a cable or a gear of some sort into the transmission although the speedometer is working fine also so I am not sure. All I know is that it is directly related to the gas pedal.

My car has 144000 miles.
My car has an automatic transmission.

A: Hi there. Sometimes the rattling sound duri...

Hi there. Sometimes the rattling sound during acceleration is caused by a loose bracket on the exhaust system or another mechanical component. The issue could also be a small exhaust manifold leak or something entirely different. The problem with diagnosing sounds is that it can only be done onsite; while a professional mechanic completes a road test. It might be a good idea for you to contact one of our professional local mechanics to complete an engine is making a noise inspection; so they can trace the issue and recommend the right repairs.

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: I changed my front mail seal and Harmonic balancer.

The front crank shaft damper is on a key way and it should not matter if the engine moved when loosening or tightening the damper harmonic balancer. The camshaft will move in and out a little bit and this is...

Q: I'm having problems with my back tires; there has been some skidding and an unpleasant scraping noise coming from my back tires.

It sounds as though one of your wheel hubs or the bearings are sufficiently worn, allowing the wheel to tilt a bit, specifically while turning left. This suggests that the right rear wheel hub or bearings are the culprits and...

Q: Loud rattling from rear

The information provided leads me to believe that the rattling noise you are experiencing in your Chevy Impala is the rear stabilizer end links failing. It can be difficult to identify a noise problem without physically driving and inspecting your...

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.