Engine code P0446

[Bubba14]

Hello again,
Service engine soon light is onI had it read @ Auto Zone
I have a diagnostic engine code P0446. Electrical circuit for the vent control in the evaporative emission control system malfunction.
You guys helped me before, now I need help again.
Truck has 104,000 miles. Any suggestions?
Auto Zone said take it to the stealer. Ouch
Thanks, Bubba14

[AndyC]

"Bubba"
This is a problem for many owners... Most dealerships will have the replacement part on hand due to the common problem. The part runs between 45.00 & 70.00 depending on how bad the dealer wants to bend you over...

DTC P0446 (Restricted/Blocked EVAP Vent Path) Set, Service Engine Soon (SES) Lamp Illuminated (Replace Hose/Evaporative Emission (EVAP) Canister Vent Asm)

Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition.

Replace the existing EVAP canister vent hose assembly with a new assembly, P/N 15086429. This new assembly has an enhanced filtering capability and a filter element that can be easily removed and cleaned.

[Bubba14]

Thank you for the info. I will give this a try. Bubba14