Skip the auto shop - Our mechanics make house calls

Q: What does p1494 code mean?

asked by on

Check eninge.light is.on ...

My car has 153000 miles.
My car has an automatic transmission.

A: Hi there. This is usually caused by a leak ...

Hi there. This is usually caused by a leak in the evaporative emissions system. This is commonly caused by a failing gas cap. I usually remove the gas cap and inspect its seal for cracks. If it looks bad at all, I replace the gas cap. If it is fine, then a smoke test needs to be done to see if there are any other leaks. If there are not any leaks, then it may have a bad vent valve. If you are planning on having this repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the Check Engine Light 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!

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: When I went out and tried to start it I turned the key and power came on, only clicks - no start 2005 Chrysler Sebring 2.4 L

Hello - I believe you have either a weak battery, bad electrical connections at the battery cables, or a failing starter solenoid. The click noise indicates the starter solenoid is trying to pass current to the starter motor, but isn't...

Q: Truck won't start after replacing head gasket

Hi, the way to tell if it was assembled incorrectly is to do a compression test on the engine and see if you have compression on all cylinders. You may have timed the engine incorrectly and this would show up...

Q: My steering wheel tilt not working

Hi there. The tilt steering wheel function is inside the steering column and can break due to excessive use, debris inside the steering column or other mechanical issues. If the lever doesn't loosen, this could be just stuck, requiring some...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...