How do you know if you need a new muffler?

How do you know if you need a new muffler?

Here are 3 signs you need a muffler replacement:

  1. Your muffler is making loud noises. The first sign that your muffler needs replacing is if you begin to hear any loud or strange noises coming from your car.
  2. A bad odor is coming from your muffler.
  3. Your gas mileage has drastically decreased.

Why does my check engine light come on when the AC is not running?

Only when I run the AC the check engine light pops up along with the triangle with exclamation point , code reading throttle position sensor/ not enough voltage and the cars RPMs fluctuate and car runs really weird. I reset the computer by hooking it up to a code reader. As long as the AC is not running, car runs fine.

When do you know your car muffler is bad?

Over time and countless warm up/cool down cycles, the exhaust pipe and the seams of your muffler rust out and start to leak exhaust gases and noise. When you notice excessive condensation coming from the exhaust pipe, especially in mid-day or warmer periods of the day, this may be a signal that the muffler is starting to wear out .

Why is my muffler so loud under deceleration?

If the muffler has a hole inside the unit and loses its efficiency, it can cause misfiring in the engine, particularly when under deceleration. 2. Exhaust is louder than normal Loud exhaust noise is usually the result of an exhaust leak that commonly occurs in the muffler as opposed to the exhaust components located near the engine.

Why does my car stall while idling cold?

Usually, when the engine stalls while idling cold, a sensor is behind the fault. You may want to check the following sensors or components: Make sure to check for diagnostic trouble codes. Even if your check engine light is not on, there could be a pending code that can help you find the source of the problem.

Only when I run the AC the check engine light pops up along with the triangle with exclamation point , code reading throttle position sensor/ not enough voltage and the cars RPMs fluctuate and car runs really weird. I reset the computer by hooking it up to a code reader. As long as the AC is not running, car runs fine.

Over time and countless warm up/cool down cycles, the exhaust pipe and the seams of your muffler rust out and start to leak exhaust gases and noise. When you notice excessive condensation coming from the exhaust pipe, especially in mid-day or warmer periods of the day, this may be a signal that the muffler is starting to wear out .

If the muffler has a hole inside the unit and loses its efficiency, it can cause misfiring in the engine, particularly when under deceleration. 2. Exhaust is louder than normal Loud exhaust noise is usually the result of an exhaust leak that commonly occurs in the muffler as opposed to the exhaust components located near the engine.

How can I tell if my check engine light is misfire?

A quick trick to determine if a coil is causing a misfire is to simply move the coil and swap with another on the engine. If you have a #2 misfire and move the #2 coil to #4, for example, then the misfire moves to #4, you know the coil is suspect.