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.

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

Whining from tensioner or AC compressor

Hi there, if the problem only occurs when the engine is cold then it is most likely the tensioner or something to do with the timing chain. The A/C compressor would create the noise when the A/C is turned on,...

Where is the starter on a 2009 Jeep Patriot

On your car, the starter is below the air cleaner box and air tube. You have to remove those, as well as other components to access the starter. Once you have accessed the connections to the starter, test for power...

2009 Mercedes C300 - Delay in shifting to reverse gear

Hello, This is not an uncommon issue. The jolting when changing gears most likely is an engine or transmission mount that is losing it's holding strength. With a failed mount, it will allow the engine and transmission to jolt when...

When trying to reverse my clutch makes a grinding noise and stalls out. Also when driving down the highway theres a rattling sound

The rattling noise under the vehicle could be a loose heat shield that could be moving around when the wind is moving fast under the vehicle. For the grinding issue when going in reverse, the reverse gear could have broken...

How do you remove to clean the rear cup holder in a 2012 Nissan Rogue.

Hello, thank you for writing in. The rear cup holders that fold out from the back of the center console are not designed to be removed on a regular basis. If you are having issues cleaning the cup holders where...

My Nissan Sentra 09 makes a vibration when I am at a stop light in drive with brake pedal pressed in

Shaking or vibration may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve may cause the engine idle to drop below the normal...

I have a Chevy Traverse 2009 that is reading All Wheel Drive Off and when I brake you can hear a sound similar to a helicopter. Sh

This type of problem can be diagnosed by a mobile mechanic, right at your location. If there is a tremendous amount of noise on braking, you should have the car inspected as soon as possible. Without an actual physical inspection...

Judder/lag when accelerating

This could potentially be due to a faulty mass air flow sensor. This is a component that regulates the air coming into the intake system as it is mixed with the fuel prior to being injected into the motor. When...

Car slows down while accelerating

You should first replace the fuel filter and road test to see if engine runs better. If problem continues then test and replace the fuel pump.

Related articles

Why Are There so Many Aftermarket Options for Mufflers?
Your Your car came from the automaker with a stock muffler. Eventually, it will rust and deteriorate, and you’ll need to replace it. You have options when this happens. You can most certainly purchase another stock muffler from a dealer,...
Symptoms of a Bad or Failing Power Steering Pump
If you hear squealing noises, the steering wheel feels stiff, or find damage on the power steering belt, have the power steering pump replaced.
Why Do Diesel Vehicles Emit Black Smoke?
There’s There’s a common misconception among drivers of gasoline engine cars that diesel engines are “dirty,” and that black smoke is emitted from all of them. That’s actually not the case. Take a look at any well-maintained diesel car, and...