odayflor

WELCOME!!!!!! Glad it helped....Although not a single GM employee agrees with us on this

Overfilling the vehicle does not effect the vent valve, it saturates the canister. It will not happen the first time it is done, hundreds of overfills is usually what does it. As a general rule don't overfill but again it didn't do the valve in. Hey your awesome thanks for the quick answer. So i guess the canister will dry out as long as I stop filling it up to much. I haven't filled it up since I replaced the part, tanks still full. Incorrect info.....read my posts on this topic....Overfilling or topping off is not saturating the cannister...You can take the cannister apart and see for yourself......The gas is damaging the soleonoid just enough to not send the correct voltage reading back to your truck's computer, thus throwing the P0449 code. The soleonoid is actually still operating just fine when this happens, but the gasoline is messing up the electrical voltage the computer is reading, and using it as a measurement to whether the part is functioning correctly....Drying it out will not help, as it permenatly damages the solenoid as far as the electric current going through it, and back to the computer..... You can fill your tank up, just stop after the first time the gas nozzle shuts off....Dont try to squeeze that extra little bit into the tank to get to the next even dollar, as this is where the problem starts......When the nozzle clicks off, tank is full........Hang up the hose, and go on your way......trying to put more in, will send gas into the hose, and onto the solenoid, and short it out again......

***IMPORTANT INFORMATION YOU MUST READ***** Ok everyone, listen up....If you have a 04 and newer silverado, with a failed evap vent solenoid, you have to read this info. Do not pay $100+ for this part(actually $150.00 at the dealer). The following part numbers associated with this part have been gm#19207763,19152349, and AC DELCO #'s 214-2082 costing over $100.00 for the modified part. This is for the modified part, with the relocation of the filterbox, and the added hose that seperates the two. No one at Gm will tell you this, but this same part, that was origionally on your silverado, is also used in the 2006 Suburban. It will be an identical replacement for what is ON YOUR TRUCK, and the cost is $24.04 AT THE DEALER. I know this because I own a 2006 silverado, and a 2006 suburban. Looked at the suburban when the part went bad on the silverado(from overfilling the tank)and bingo, same part. Ask a parts person at GM, and they will tell you otherwise, but they are lying to you. Bought the suburban part today part # 25932571 (GM #) and everything is identical, right down to the numbers stamped on the part itself. Took the part off my silverado, put the replacement on (which gm told me is not the right part), cleared the codes, and bingo no more light after 3 consecutive starts...... Why, is it that GM feels we need to pay the price for something they did wrong???? And moreso, lie to us, telling us the $150.00 part is our only choice to fix the problem. My truck went 40K miles with the origional part, and probably only went bad because of my own stupidity in overfilling the tank, whay would I not just want to spend $24.00 to put on the same part, that will probably go the rest of the life of the truck with no tank overfills???? I say CLASS ACTION LAWSUIT FOR EVERYONE THAT HAS BEEN SCAMMED INTO PAYING THE RIDICULOUS PRICE that GM is trying to suck out of us.....Please pass this on to the world, and every forum you can...Get the word out....Let the parts people at GM know we are on to their BS, and they can't take advantage of us like they have.....