Q: Loud noise when car’s running, probably the exhaust

asked by on November 03, 2015

My 2009 Nissan Sentra has been getting louder and louder over the last couple of weeks. It sounds like there is a hole in the exhaust. I looked under the car this morning and there is so much rust on the pipe connecting the muffler to the exhaust that fumes are coming straight out of the sides! My car only has 42,000 miles on it, so how can this happen to such a relatively new car?

Many of these cars have issues with rusted exhaust pipes. The pipes seem to start rusting at the weld seams and can rust through in a few years, especially if the car is located in a state that uses salt on their streets or near an ocean with salt spray exposure. Nissan will not cover the pipes if you are out of the basic warranty period. You can take the vehicle to an exhaust shop and have the pipes replaced with aftermarket pipes which will last longer than the OEM pipes.

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

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

I was told I need new ball joints when I got new tires but once the tires were put on the symptoms stopped why is that?

What you are describing sounds like a bad or worn out ball joint. A ball joint is designed to pivot through multiple planes. Of course, because the ball joint constantly pivots at different angles, it tends to wear out more...

tranny mount or solenoid

I watched your video and unfortunately it doesn't give me the information I need. I do like the initiative though. In the future, which will be hard to record, I need to hear what the motor sounds like in the...

I'm smelling gas - 1997 Volvo 850

Hi there and thanks for contacting YourMechanic. The best way is to look in your owner's manual and look up the fuel tank size. Then remove the fuel tank from the vehicle to gain access to the fuel filler neck....

Related articles

The Best Used Cars to Buy If You're a General Contractor
If If you're a general contractor, you probably aren’t in the market for a used car. More likely, you’re looking for a pickup truck, because you need to haul equipment and supplies to various job sites. Most contractors will likely...
A Buyer’s Guide to the 2012 Nissan Cube
The The unique appearance of the 2012 Nissan Cube draws attention everywhere it goes. However, drivers appreciate the numerous standard features like speed-sensitive steering, keyless entry, cruise control and 16-inch alloy wheels to name a few. The result is a...
The Best Tool to Heat Up Rusted or Seized Parts
A micro torch is a great addition to a mechanic's tool box. It can clean rust that has built up in various parts of a car.