So, mine Century has been offering a trouble password for evaporative emissions because the at an early stage spring. I"ve been poking in ~ it trying to get it addressed for months, as here in the Chicago area we have actually emissions testing and having the CEL illuminated is an immediate fail. I"ve replaced the gas cap, vacuum lines, purge solenoid, and also I don"t know what else. Quiet can"t deal with that trouble code. Mine next little was walking to be the vent solenoid. Take it forever to discover it because some info I had was pointing me in the dorn direction until I found it by accident up over the rear left wheel fine (needed to uncover it before buying a component since there are two various type; mine wake up to it is in the round one). So ns order the component and wiring adapter harness. Prior to I could take time to swap that out, though, ns had brought the vehicle in because that repairs. I had actually a misfire on one injector and had no time to execute the work. If it was there, I had actually diagnostics done due to the fact that other things were not correct that i couldn"t diagnose. They determined two things: 1) I had a clogged cat; 2) There was an error ~ above the PCM/ECM and it necessary to be reflashed. Supposedly, this PCM/ECM error to be the reason of the evap code. At any type of rate, due to the fact that I had the part, I wanted to swap it out anyway to check out if it would aid before security $200 to speed the PCM/ECM.The rust on this auto is unbelievable. The clip the solenoid is placed to is stunner rusted. Ns can"t detach the solenoid indigenous it, but I can"t call if that"s because of rust. Ns can"t unbolt the bracket indigenous the automobile as the bolt is nothing yet rust. Also, in the process of things, the clamp the holds the water tap onto the solenoid disintegrated while attempting to eliminate the solenoid from the bracket. And also everything I execute drops pieces of rust onto my face. The has likewise become evident that I need to replace the filler tube, again due to severe rust (almost looks like it has a severe skin condition with a bunch scabs -- rather nasty looking), but additionally the screws/bolts for it room severely rusted. I"m loathe to simply bust the bracket and also tie the new solenoid up there in whatever means works, yet I don"t understand if the place of the solenoid is important.The local dealership has had some components I wasn"t expecting come find, so maybe pop in there and also see if i can get the brackets and screws then bust points up? Or is there a far better course of action I"m not seeing? Or am ns wasting mine time trying to swap this part and should simply go get that flashing done?

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JMurphyFull Member
7900Buick Ownership2002 Buick Century

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Was the trouble code P0446? That can be vent solenoid. Or just clogged/cracked hoses for venting or evap canister. Girlfriend may discover just instead of hoses will solve problem. I live in a state there is no emissions test and never run right into needing to change these anymore. But I would certainly bet the solenoid demands to it is in in exactly position. I"ve read that a common problem the these becoming defective is native trying to placed to lot fuel in tank. If girlfriend don"t shot and put much more gas in tank after nozzle at gas station shuts off, 보다 I would shot replacing the cracked hoses and also clearing password to view if that"s the only problem. If you have any type of cracked, clogged or lose hoses come evap canister or solenoid than it will offer you P0446.