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P0446 Code

jakin55

Full Member
Joined
Sep 25, 2021
Messages
11
Have replaced the purge valve on the intake as well as the solenoid near the canister. still pops up, usually notice when its over half full tank. Rarely comes on when its under a half tank of fuel. Any ideas?
 
I'd pull the vapor canister next and look for charcoal pellets in the to/from lines. It could be restricted. If there are small pellets, replace the vapor canister and clean out the lines.

When fueling, does the pump kick off sometimes and you have to keep restarting it?

What year truck are we talking about anyway?
 
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