Q: My catalytic converter was replaced and everything seems fine. However the engine seems incredibly loud and this occurred on the highway.
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.
Recommended Services
| Noise from engine or exhaust Inspection | $94.99 - $114.99 | Get a Quote |
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.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
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
What others are asking
When Should Engine Hoses be Replaced?
Regularly scheduled maintenance of hoses varies between vehicle manufacturers, but a good rule of thumb is to replace them whenever you have the cooling system serviced (cooling system flushed) or at 100,000 miles. In the years past, hose technology was...
How do I turn on the easy entry/exit feature?
The easy entry/exit feature helps you enter and exit your vehicle. When the driver’s door is opened, the driver’s seat will move to a position that makes it easier for you to get in or out of your vehicle. This...
Battery will randomly die overnight
You may have an intermittent problem with the power relay control box staying engaged after the key is turned off. This would require replacement of the relay box controller module. I'd recommend getting some assistance from a professional mechanic to...
Idle is very high
This is a common sign of a major vacuum leak. This can be very difficult to trace as there are many places a vacuum leak can emit from. I would recommend having an expert from Your Mechanic come to your...
My 2004 Nissan X-Trail is intermittently stalling at traffic lights and stop signs.
Hi there. Having the exhaust manifold repaired should not have contributed to the engine stalling. Assuming, the Check Engine Light (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) is not coming on, leads me to believe the ECM (engine control module)/computer is not recognizing the fault. As...
Fuel regulator 0 psi.
If the motor is running, there can't be 0 psi. I'm not sure how you are reading fuel pressure from the regulator. This is not a normal diagnostic procedure. Maybe you are referring to a fuel pressure gauge. And again,...
what is that rickety noise my car makes?
Hello, thanks for writing in. There are a lot of components that will make strange noises on the vehicle. The best thing to do is have someone diagnose the sounds, or attempt to narrow it down yourself. The best way...
Why would my AdvanceTrac and ABS warning lights came on the exact same time?
Hi Barbara. Thanks for contacting us today. Usually when both of these warning lights illuminate, it's due to a wheel or speed sensor failure - as both contribute to the Advance Trac and ABS system. It's also possible that the...
My vehicle is idling at 1,500 rpms... why does this happen and should I be concerned?
High idle should be corrected as it will cause harsh transmission engagement, waste fuel, and make it difficult to stop the car as the engine surges ahead. High idle can be caused by a faulty idle air control valve (IAC...
Related articles
How to Buy a Good Quality Exhaust Manifold
The The exhaust manifold bolts to the cylinder head of the engine and pulls exhaust gases from the individual ports; combining them into one outlet to flow back into the remainder of the exhaust system. Exhaust fumes are sneaky, and...
Symptoms of a Bad or Failing EGR Cooler
Common signs include engine overheating, exhaust leaking, and the Check Engine Light coming on.
How to Replace an EVP Position Sensor
The EGR valve is monitored by a valve position sensor. This sensor helps your car's EGR system to run more efficiently and better control emissions.
Browse other content
Maintenance
Services