Skip the auto shop - Our mechanics make house calls

Q: When accelerating I hear a poping noise coming from under the car like where the muffler is at and it hapoens on and off at times

asked by on

When accelerating like on a 4 lane road the car makes the poping noise while I'm accelerating and when I'm in neighborhoods the noise stops and the check engine light is on

My car has 93 miles.
My car has an automatic transmission.

I would first check the computer to see what code is in the computer’s memory and have it diagnosed. You may be having problems with the intake manifold runner control plates sticking in the intake manifold. This can cause the intake to not change from the long runner for power to the short runner for fuel mileage. If this happens it can cause a lean pop in the engine. One other possible problem may be that the mass airflow sensor is contaminated and needs to be cleaned. I’d suggest having a clean paper air filter installed as well.

I’d suggest getting your vehicle checked by a qualified technician, such as one from YourMechanic, who has the tools and experience to properly diagnose your Check Engine Light. The necessary repairs can then be made once the issue has been pinpointed. Good luck.

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!
  1. Home
  2. Questions
  3. When accelerating I hear a poping noise coming from under the car like where the muffler is at and it hapoens on and off at times

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: Check engine light is on with code P0440. Also the car makes noise

Hi there, thanks for writing in. This code is for a leak or failure in the evap emissions system. By far the most common cause of this is a bad gas cap. If the seal on the cap is bad...

Q: Car jerking with flashing check engine light.

If your Check Engine Light is flashing, you need to stop driving it until it is fixed. A flashing Check Engine Light is warning you that there is a fire danger because there is to much raw fuel entering the...

Q: Engine misfiring (?)

When the engine is misfiring the engine computer may set a code in most instances. If miss only happens at high rpms then this can be cause from a coil that is not able to spark at the higher RPM....

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...