Q: My catalytic converter was replaced and everything seems fine. However the engine seems incredibly loud and this occurred on the highway.

asked by on

I have a 2006 pontiac G6. The catalytic converter was just recently replaced. The engine seems to be functioning fine but its incredibly loud and this just happened all of a sudden while I was driving on the highway. There is no check engine light on do you have an idea of what might be wrong?

Dave

My car has 88000 miles.
My car has an automatic transmission.

Hi there. There is an exhaust leak under the vehicle. Check the catalytic converter, muffler, and all the clamps under the vehicle on the exhaust pipe and see if anything came loose. Hook up any parts that are disconnected on the exhaust pipe or replace the parts that are broken. If you need further assistance with your exhaust system, then seek out a professional, such as one from Your Mechanic, to help you.

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
  1. Home
  2. Questions
  3. My catalytic converter was replaced and everything seems fine. However the engine seems incredibly loud and this occurred on the highway.

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 on & OBD #P0171

P0171 for your car is "system too lean." The most common cause is a vacuum leak and it can come from a leaky hose or a leaky gasket. However, I did a quick search and found someone on the forums...

Q: Car has knock in the motor and won't start.

It sounds like your engine may be seizing up due to low oil. I would first recommend checking the engine oil to ensure its proper level. If the oil is low this could be your problem. If the engine is...

Q: My car keep overheating. Does the muffler sensor have anything to do with that?

The muffler does not have a sensor but you do have a sensor for the catalyst on the engine called an O2 sensor. This sensor will not have anything to do with the engine overheating. You should have the engine...

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...