# P0446 on the 2000 Chevrolet Silverado

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0446

- [10034428](https://open.wenmarpro.com/bulletins/10034428), 2010-11-15: CHEVROLET:GMC: ENGINEERING INFORMATION\-FUEL TANK PRESSURE SENSOR, DTCS P0446, P0451 OR P0454 SET. GMC ENGINEERING IS ATTEMPTING TO DETERMINE THE ROOT CAUSE OF THE ABOVE CONCERN. \*PE
- [637176](https://open.wenmarpro.com/bulletins/637176), 2002-11-20: SOME VEHICLES MAY DISPLAY A DIAGNOSTIC TROUBLE CODE OF P0446 \(EVAP CANISTER VENT\). \*TT
- [634786](https://open.wenmarpro.com/bulletins/634786), 2002-10-09: SOME CUSTOMERS WHOSE VEHICLES ARE OPERATED IN DUSTY TYPE ENVIRONMENTS, SUCH AS FARMING OR MINING OFF\-ROAD TYPE APPLICATIONS, MAY COMMENT ABOUT THE ILLUMINATION OF THE INSTRUMENT PANEL SES LIGHT, WITH DIAGNOSTIC TROUBLE CODE P0446 SET. \*TT UPDATED 7/11/08. \*NJ UPDATED 11/5/10. \*PE