Q: Exaust smell coming through car vents, especially when idle. Engine has a clicking noise since having the spark plugs replaced.

asked by on

Smell of exaust coming through the car vents, more so when idle. Also recently had spark plugs replaced and noticed a clicking sound of the engine

My car has 115575 miles.
My car has an automatic transmission.

From what you’ve described it sounds like there may be a loose spark plug. This would cause both of the issues you are describing. The clicking is the exhaust gas escaping through the spark plug hole, which also allows this exhaust gas to circulate into the passenger compartment.

If you’d like to get this fixed, have one of our mobile technicians come diagnose the smell and the sound you’re hearing firsthand for an accurate repair.

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. Exaust smell coming through car vents, especially when idle. Engine has a clicking noise since having the spark plugs replaced.

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: Burning smell from engine

This vehicle does not tend to have many issues with burning smells coming from the engine. The main one that I run across is oil burning on the engine. This is typically caused by an oil filter or oil plug...

Q: Q: Car is shaking violently

Since you have listed a number of issues, there is no certain way to provide you with a definitive answer. It's highly unlikely that all your issues are rooted in one part or system. If the plugs are covered in...

Q: Is a Vehicle With a Bad Exhaust System Dangerous?

In most states in the USA, if you have an exhaust leak, you will fail that state’s annual safety inspection. The vehicle will then be rejected for safety due to exhaust gases such as NOx, carbon monoxide, and many other...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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...