Gas valve solenoid

Under the vehicle under the drivers seat along the frame. behind the fuel filter

air you meaning the air flow solenoid ? as this is in the engine bay... its just a pipe from the tank to the engine bay. sits under the window on the pass side behind the cover then the pipe feeds out to the side with a filter on the end.

Its all connected.
The computer uses a solenoid to vent the fumes from the tank when the engine is running.
The vapor canister holds the fumes until the vent valve is opened.
The computer tried to vent the tank and something went wrong.
It could be from the excessive heat or something with the venting system.
A mechanic would test the venting system.

with some one turning the key and some one at the fill tube where you put gas in. With your ear close to the fill tube the other person turn the key on you should hear a loud humm. If you dont hear the humm i would probally guess on it being the fuel pump in the tank. A another way to check to see is locate the fuel rail and on the fuel rail there is going to be a tire valve stem cap unscrew that turn the key on and see if there is pressure by pushing the center and see if there is pressure . Now there is gas in the line and if there is pressure it is going to come out pretty fast so be careful.So that is the two ways to check to see if you are getting fuel to the engine.

The fuel pump is probably located at the fuel tank. You will find the fuel pump mounted on the top of the fuel tank. There will be an access cover, about the size of a saucer, glued down with caulk under the trunk carpet just behind the back seat, or under the back seat bottom. Once you have located this cover, pry it up--I don't think there will be any screws. You should then be able to unscrew the plate from the top of the tank which will lift the fuel pump and sender unit. PLEASE OBSERVE EVERY PRUDENT PRECAUTION FOR WORKING AROUND FLAMMABLE VAPORS AND LIQUIDS! EVEN IF THE TANK IS EMPTY!
THE FUEL PUMP IS INSIDE THE GAS TANK. GOT TO DROP THE GAS TANK TO CHANGE IT.

Yes it does have a switching valve.

It sounds like maybe the baffles in the tank have broken loose. If that is the case then you'll need a new tank.

Sounds like the baffles have come loose in the tank. The only thing you can do is replace it.

i just went through that problem

Evap canister / close solenoid and air filter $211- 230.00 in parts

$675- $71.00 at dealships for this small 30 minute task

If no check engine light Evap canister and air filter - fixxes problem 100 %
note:you may be able to get by just replacing air filter- works
rarely

if have check engine- close solenoid and purge solenoid may need replace- you local autozone- like autozone will pull check codes for free

the how to:

Jack car up in rear - behind right rear tire - canister -canister close solenoid & air filter are located in a plastic box with metal strap and one bolt.

Unscrew bolt everything drops down the EVAP CANISTER is held to plastic box by wirer tie . Remove wire tie and solenoid connection.
There is a small metal wire clip the holds the solenoid electrical connection together with a flat screw driver pry up the wire clip , off is okay too , ....it will go back on.

Once you have done all that you have full access there are i believe from memory 3 rubber hoses with clips ......Mark hose connects very important mark the hoses way the going on evap canister with color tape .

Next, remove whole assembly- the solenoid and air filter will come with the evap canister.

Now that have the whole assembly move to your work bench
look to see how the soleniod hook up to the canister and the air filter - now, disconnect the hose to black solenoid and remove the air filter which hook to solenoid and solenoid at same to ......

Next seperate the the solenoid and air filter- you should be air to put your mouth on solenoid and blew air in one hole and out the other- this solenoid is noramlly open- if air dosen't go threw is stuck closed and must be replaced.

same with air filter- this air filter are know for get plugged and should be replaced every 30,000 miles.

Also note: over fill you gas tank , at fill up - can cause the Evap to get liquid gas inside which cause the chorcoal in the filter to swell up and plyug the system up.------ you should when fill up stop pump gas after the auto pump click off on normal work tank and not try to top off you tank.

note: check with your deal for exact wieghts
weigh the evap canister - six pound - replace it- new one is about 4-4.5 pounds - it is just best to replace .The evap holds gas fumes then send to engine so that dosn't vent to

All parts are dealships only -

This is easy fix and normal, for gas fill problems

canister Evap 161.00
canister close solenoid 43.00 may or may not be used
air filter 7.00

not used in this fix- check engine fix use these parts
sensor price ?
purge valve 39.00
canister close solenoid 43.00

You will have to remove your back seat to gain access to fuel pump. Fuel tank is located in trunk. No need to take fuel tank down.