Q: My car is loud when driving (sounds like I have no exhaust) and it takes about a min to get up to the speed limit then goes faster

asked by on

My car got stuck in a snowbank and my friend stepped on the gas to floor it out later that day my car sounded loud when driving (like I had no exhaust) it now takes a min to get to the speed limit and struggles to get up hills, steep hills are the worst. On Friday it kind of sounded like something was dragging under my car but there was nothing. I checked my oil and it was fairly low so I tried to top it up and only got a very small amount in and it doesn't seen to be going down.. There's only a smell when I first start my car like an exhaust smell but it dies down.

My car has 169700 miles.
My car has an automatic transmission.

Hi There, It sounds like you may have damaged your catalytic converter when your car was stuck in the snow. It may have possibly resulted in the converter housing itself being caved in causing it to not flow properly resulting in the exhaust gases being clogged inside the body of the catalytic converter. The catalytic converter converts toxic exhaust gases into less harmful pollutants that are suitable to be expelled into the atmosphere. When the catalytic converter is clogged, this causes these gases to be backed up into the exhaust system not allowing the engine to breathe properly. When this happens, the engine is forced to work much harder to expel these gases. This often results in the engine bogging down, hesitating, shaking and causing very poor fuel economy. This should also cause a check engine light to come on as the O2 sensors should be reading the incorrect amounts of oxygen in the exhaust gases if this is your problem. I would recommend having an expert from YourMechanic come to your location to take a look at your vehicle.

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 car is loud when driving (sounds like I have no exhaust) and it takes about a min to get up to the speed limit then goes faster

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 hear a pop sound whenever I turn the wheel

There are several possible causes for a pop noise when turning the wheel. Finding the cause will really depend on what area the pop is coming from. Does it come from the steering column, under the dash, the engine compartment,...

Q: Asd relay clicking it wont start

Hello. On your particulate vehicle you should be able to disarm the anti-theft by either locking/ unlocking the driver's door or unlocking the liftgate with the key. If doing it that way does not disable the alarm system you may...

Q: Can I just remove the Passlock 2 system

Hi Becca. Thanks for the question. The Passlock system is a safety and security device, so it's not supposed to be removed based on manufacturer recommendations. While it's possible to remove these systems manually, we can't provide tips or suggest...

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...
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.