Easy lifehacks

What causes a Chevy Silverado to throw an OBDII code?

What causes a Chevy Silverado to throw an OBDII code?

Faulty Charcoal Canister – The charcoal canister is often the cause of P0446. Fuel Tank Sending Unit – It is possible for the fuel tank sending unit to go bad. This can mess with line pressure and throw the code.

What causes the p0446 trouble code on a Chevy Silverado?

When the EVAP control system vent control circuit no longer responds to the ECU, it will throw the P0446 OBDII Code. There are many things that can cause the P0446 trouble code to trigger in your Chevy Silverado.

Why does my Chevy Silverado have a gas smell?

P0446 may also cause a slight gas smell. This is due to it being related to the system that deals with fuel vapors. P0446 is a universal OBDII trouble code. This means that regardless of which make or model of vehicle, the code will mean the same thing (Silverado or not). The code technically stands for:

What does p0446 mean on a fuel pump?

Scan your vehicle to verify P0446 is the only code present. If other codes are present regarding fuel pressure or the fuel system, repair and diagnose those first. If it is paired with P0441, P0440, and/or P0446 there is most likely a solenoid failure, leaking charcoal canister, or a more complex EVAP leak.

Faulty Charcoal Canister – The charcoal canister is often the cause of P0446. Fuel Tank Sending Unit – It is possible for the fuel tank sending unit to go bad. This can mess with line pressure and throw the code.

What’s the problem with my Chevy Silverado gas pump?

The 2004-2011 Silverado 1500 has known issues with the EVAP system, a part of your emission control system. The EVAP canister vent valve or valve solenoid wiring may fail causing illumination of the check engine light, setting code P0446, and problems filling the tank with fuel.

When the EVAP control system vent control circuit no longer responds to the ECU, it will throw the P0446 OBDII Code. There are many things that can cause the P0446 trouble code to trigger in your Chevy Silverado.

P0446 may also cause a slight gas smell. This is due to it being related to the system that deals with fuel vapors. P0446 is a universal OBDII trouble code. This means that regardless of which make or model of vehicle, the code will mean the same thing (Silverado or not). The code technically stands for:

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Ruth Doyle