Skip the auto shop - Our mechanics make house calls

Q: Car vibrating and shaking with the smell coming from the muffler

asked by on

Recently, my vehicle started to show check engine light on. I changed the oil. The car vibrates and shakes with awful smell that seems to be coming from the muffler. Why is this happening? thanks in advance.

The awful smell your referring to is probably the catalytic converter being damaged. When there is a severe misfire, like what you’re describing, the catalytic converter will deteriorate, resulting in a sulfur smell. Of course, the misfire will also illuminate the Check Engine Light. I suggest you have this problem remedied as soon as possible to prevent any further damage. There are countless reasons for a misfire, so this job is best left to a professional. The team at YourMechanic is an excellent option, as they can come to your home or office to inspect the smell, diagnose your car’s shaking issue, and perform any repairs that are needed for your situation.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Issue with the blinking headlights, not functioning dashboard and gear shift lights

If only these three items are acting up, I doubt the battery is to blame. Also, the headlamps share separate ground connections, so a poor ground is not the issue. The Central Electronic module (CEM) acts as a gateway between...

Q: Brown sludge in my coolant reservoir

Hello, and thank you for writing in. Oil is mixing in to the coolant, likely through a blown head gasket that is allowing oil to leak out and get into the cooling system. There are other reasons this can occur...

Q: DIC message: Oil low, check coolant level... both recently changed and are full.

Hi there, thanks for writing in. This suggests faulty coolant and oil level sensors that may need repair or replacing, or it may be that they were not reset at the time of the recent oil and fluid change. You...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...