Po446
#1
Po446
I was getting a PO446 code I changed the vent on the cross memeber under the truck few days later the code came back. I didnt mess with it for a while do to the fact the motor in my daughters car blew. SO I solved her problem and now its back to the blazer. I noticed the other day when the gas cap was off that the little tab inside the filler next is stuck all the way open. Could this be causing my code?
#2
Read this... P0446 code - GM-Trucks.com
{GM TSM's dont always get it right}
Is there any chance you flooded the canister? Otherwise, I'd go for checking/cleaning purge solenoid and valve.
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