Skip the auto shop - Our mechanics make house calls

Q: Check Engine light won't go off

asked by on

I was told that I needed a vapor canister purge solenoid for my 2004 Hyundai Elantra. Plus, the Check Engine light won't go off, and I can only pump $1.00 in gas and the pumps keeps cutting off like the tank is full.

Hi there. The vapor purge solenoid releases the fumes in the gas tank. If the solenoid is stuck closed, the gasses can’t escape and try to come out the fill tube. The nozzles at the gas pump are designed to turn off if there is back pressure so that the fuel does not come flying back at you. That is why it keeps turning off every few dollars worth. The solenoid can fail, but it can also not be getting a signal to open. If the signal is not getting to it, it won’t work even if you replace it. If you need further assistance, I recommend you have a certified technician, like one from YourMechanic, inspect the Check Engine Light to make sure which component is causing the problem.

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

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: Car going into Limp Mode

Your problem may be something simple or more complex. The first thing that needs to happen is for the Diagnostic Trouble Codes or DTC's to be read and addressed. There are only a few things that can put your car...

Q: Motor turns over will not start

Hi, thanks for writing in. If the car has had a history of overheating, this may very well likely be a blown head gasket. As you know when this happens, this will cause a dramatic drop in cylinder compression, often...

Q: car won't start security light flashing

Hello Mike, thank you for writing in. The vehicle may be activating its immobilizer system which was demanded to be installed by insurance companies. If you have access to an OBD-II scanner, you will want to scan the vehicle for...

Related articles

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...
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...
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.