Skip the auto shop - Our mechanics make house calls

Q: My EVAP canister has a small leak

asked by on

My car needs a smog certificate. The emissions light is on. The diagnostic code said the EVAP canister has a small leak, suggesting that the EVAP canister needs to be repair or replaced.

Hello! I suggest that a technician with a smoke machine test your EVAP system. The smoke will come out of any area of the EVAP system that is leaking. Most Auto shops will have a smoke machine. I would recommend having a certified mechanic, such as one from YourMechanic, come and inspect your EVAP system for you and replace your EVAP control canister if needed.

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: blower motor or relay

If the A/C is getting too cold it may be freezing up the evaporator and causing a restricted air flow out of the vents. If this is the case then the expansion valve or temperature sensor on the evaporator is...

Q: I'm smelling antifreeze an seeing a little steam from under the hood

The engine in your Pontiac Grand Prix is known to corrode out at the corners of the intake and head. The leak starts with a gasket and grows to damage the intake and heads. I suggest removing the intake and...

Q: My car shakes while it idles but says there is an evap system leak?

An evap leak is the same thing as a vacuum leak. A vacuum leak will certainly cause the engine to run roughly. I would recommend having your vacuum levels checked with a vacuum gauge by a qualified professional to determine...

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...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.