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: Doing less MPG than before and I sometime feel heavy slow during driving

This may be related to what is called a mass air flow sensor. This is a unit that monitors the air intake as it is mixed with fuel prior to being injected into the motor. This unit sends a signal...

Q: Plugs not sparking.

Hi there! Spark plugs usually stop working due to old age. Spark plugs conduct electricity through the electrode of the spark plugs to ignite the fuel. An electrode will become shorter after each ignition just as a candle wick would....

Q: When I start my car it sounds like a muffler news up front right below the engine what is that or can you help

It's possible that an exhaust component is leaking and/or is loose. This can be determined by a visual inspection and if you desire such an inspection please request an engine noise diagnostic - suspected exhaust leak/loose mount. If you request...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...