Why does my GMC Silverado have a p0446 code?

Why does my GMC Silverado have a p0446 code?

Here’s a series of steps that worked for me to eliminate the P0446 code on my 2006 Silverado 2500HD 6.0. This code most often refers to a blockage in the EVAP vent system. This code is not associated with a bad gas cap or faulty EVAP Purge solenoid (on top of the intake manifold).

What causes an EVAP system code p0446?

Here are the most common causes of an EVAP System Malfunction or code P0446: 1 Malfunctioning vent control valve 2 Clogged vent valve 3 Control circuit issues (e.g., loose or damaged wiring) 4 Powertrain control module hardware or software issues (rather uncommon)

Why does p0446 cause fuel tank to crack?

Building their nests in the vent line blocks the flow, some of them so bad that they cause EVAP DTCs to be set, including P0446, and some so bad that they’ve caused canisters and fuel tanks to crack.

What is the code for the EVAP vent solenoid?

This feature is not available right now. Please try again later. Let’s have a look at this Chevrolet Cobalt that came with a code P0446 for the EVAP Vent Solenoid Performance. I have notice that most people will get sucked into the trap of changing parts based on code definition instead of code setting criteria.

Here are the most common causes of an EVAP System Malfunction or code P0446: 1 Malfunctioning vent control valve 2 Clogged vent valve 3 Control circuit issues (e.g., loose or damaged wiring) 4 Powertrain control module hardware or software issues (rather uncommon)

Where is the p0446 code on a Toyota Camry?

The P0446 codes triggered when an improper voltage signal is sent to Engine Control Module (ECM) through EVAP canister vent control valve. The Evaporative System ( EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent.

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.

Where is the solenoid valve on an EVAP canister?

The Evaporative System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. This solenoid valve responds to signals from the Engine Control Module (ECM).

What is the trouble code on my GMC Sierra?

P0446 GMC Sierra. One of the most common trouble codes with the GMC Sierra is the P0446 code. This trouble code references a number that is given to you when you plug your Sierra into a OBDII scanner. P0446 Indicates that there is a fault in the evaporative emission control system. It often appears with other codes, such as P0420, P0441, or P0440.

Here’s a series of steps that worked for me to eliminate the P0446 code on my 2006 Silverado 2500HD 6.0. This code most often refers to a blockage in the EVAP vent system. This code is not associated with a bad gas cap or faulty EVAP Purge solenoid (on top of the intake manifold).

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.

This feature is not available right now. Please try again later. Let’s have a look at this Chevrolet Cobalt that came with a code P0446 for the EVAP Vent Solenoid Performance. I have notice that most people will get sucked into the trap of changing parts based on code definition instead of code setting criteria.

P0446 GMC Sierra. One of the most common trouble codes with the GMC Sierra is the P0446 code. This trouble code references a number that is given to you when you plug your Sierra into a OBDII scanner. P0446 Indicates that there is a fault in the evaporative emission control system. It often appears with other codes, such as P0420, P0441, or P0440.