Skip the auto shop - Our mechanics make house calls

Q: Small leak in emissions

asked by on

I have a small leak in emissions.

You will need to have an EVAP smoke test performed to locate where the system is leaking before replacing anything. It could be a stuck valve, broken hose, or a gas cap that is not sealing the system. Without knowing where the leak is, you don’t know what to replace. I would recommend having a certified technician take a look at your car to find the source of the leak and make the necessary repairs.

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!
  1. Home
  2. Questions
  3. Small leak in emissions

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: No resistance in steering and noise when wheel turned all the way left after slight fender bender

Hi there. It sounds like part of the suspension was bent when the accident occurred. From what you are explaining most of the time the strut or the lower control arm gets bent and causes this. If you want to...

Q: My mechanic says I need a throttle body with a vacuum hose for my 04 mercury mountaineer. I've found throttle bodies but none of them mention a vacuum hose.

Hi there. The best thing would be to check the throttle body that is currently on the engine. If the throttle body has vacuum hoses to it, then you would need to get a throttle body with a vacuum hose....

Q: Coolant leak??

My suggestion is to have the coolant refilled and the system pressure tested to see whether you have a leak, or the engine overheated due to a fan not turning on, or you have a blown head gasket. A...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...