Skip the auto shop - Our mechanics make house calls

Q: Two codes coming up: P0449 & P0455

asked by on

I am getting two codes: P0449 & P0455.

A: The most likely cause for these two codes i...

The most likely cause for these two codes is that the emissions control evaporative canister vent solenoid needs to be replaced. You may also want to check your gas cap to make sure it does not leak; it may be either of these components. I recommend having a mechanic, such as one from YourMechanic, start by inspecting the emission control canister, and work from there.

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: What's wrong when the alternator is not charging the battery, both parts are new, car Will go dead after driving 20 mins

Your vehicle has a fusible link in the wire harness that goes from the main wire on the alternator to the starter. If you had the starter replaced then maybe the wire was not put on the starter. The fusible...

Q: Oil pan removal

This is a tricky process as often times the oil pan can get hung up on the oil pump when removing it. Try carefully moving back and forth and around a bit and it should come off assuming you have...

Q: Car will only reverse, and the key got stuck

Hello. It sounds like your ignition switch may have failed. This is a common problem with your type of car and most GM vehicles. I would typically use a voltage meter to test the switch. If the switch is not...

Related articles

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...
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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.