What is P0446?

What is P0446?

evaporative vent valve
Trouble code P0446 typically turns up in On-Board Diagnostic testing on account of an illuminated Check Engine Malfunction Indicator Lamp. This generic OBD-II code indicates that the evaporative vent valve in the emission control system is malfunctioning.

What is trouble P0453?

A P0453 code means that a reading from the engine’s evaporative pressure sensor is higher than normal, indicating changes in pressure that are out of factory specification.

Can you drive with a P0446 code?

The P0446 code won’t put you in any immediate danger. You can still drive your vehicle if you see this code. Other than the check engine light, you may experience reduced fuel economy. While this code may not create life-threatening problems, anything that triggers a check engine light deserves attention.

What does trouble code p0446 mean on Chevy Silverado?

5.3L Chevrolet Silverado (1500, 2500): 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 What Does Trouble Code P0446 Mean? A trouble code P0446: Evaporative Control System Vent Valve Performance means that the EVAP vent solenoid is not allowing ambient air into the EVAP charcoal canister.

What is the trouble code on my Chevy Silverado?

P0446 Chevy Silverado. March 6, 2019August 7, 2018. One of the most common trouble codes with the Chevy Silverado is the P0446 code. This trouble code references a number that is given to you when you plug your Silverado into a OBDII scanner. P0446 Indicates that there is a fault in the evaporative emission control system.

What does the code p0446 mean on a vent valve?

Code P0446 sometimes indicates that an electrical failure has been detected in either the vent valve itself or its control circuit.

What should I do about my Buick LeSabre p0446?

After ascertaining what trouble codes appear with the P0446, the mechanic will typically inspect the EVAP system. This includes the purge valve, line, and canister. The mechanic will inspect the gas cap to make sure that it can handle pressure.