My check engine light came on.....

[ReconH3]

I hope!


"Ex Umbris Venimus"

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[txbowhntr29]

I get the same P0446 code too. I went through some deep water the day before and got up the next morning to have my check engine light on! UGH!!! I even disconnected the battery for 30min and still stays on steady! Do yall think the EVAP pre filter just got water in it? Will it dry out and the light go off??? what to do???

 

[Kyle]

I get the same P0446 code too. I went through some deep water the day before and got up the next morning to have my check engine light on! UGH!!! I even disconnected the battery for 30min and still stays on steady! Do yall think the EVAP pre filter just got water in it? Will it dry out and the light go off??? what to do???

http://www.hummerknowledgebase.com/fuel/canister_vent_solenoid.pdf check this out, it might help, only thing i can suggest is getting under the truck and taking a look

 

[txbowhntr29]

UPDATE!!!!!!

I pulled my prefilter before the canister and it was full of water and mud. Cleaned it out , reset the code, and presto after the system check (which took a few days) no check engine light! Easy fix this time....thanks for the help!