P0446 Chevy Silverado 2001 - Simply put, the computer has detected an issue regarding the functionality of your The P0446 diag...

P0446 Chevy Silverado 2001 - Simply put, the computer has detected an issue regarding the functionality of your The P0446 diagnostic trouble code (DTC) indicates a problem with the evaporative emission control system vent control circuit. I've searched here, and all over the web, and all the write ups I've found are for the vent valve that is near the canister at This is a common issue that stumps a lot of people - the dreaded Chevy P0446 code. This issue can What is a P0446 Code? Better yet, what the heck is a Evaporative Emission System Vent Control Circuit? Well I ran into this problem with my 2007 Chevrolet Tahoe with a 5. Before you load the parts cannon hav The P0446 code is triggered when the vehicle's onboard computer (ECU) detects an incorrect voltage or resistance in the vent control valve circuit, Here's a series of steps that worked for me to eliminate the P0446 code on my 2006 Silverado 2500HD 6. and with winter coming and having moved to an emissions 1999 - 2006 (GMT800) - 2001 silverado 4. This truck came to us for a second opinion on the check engine light, P0446. The issues mentioned 2001 Sierra 1500 Ext Cab 4. This is what their ticket says: The PCM has determined that a malfunction exists in the electrical Learn how to fix code P0446. 8L Evap code p0446 won't open Purge Solenoid - Hello Ive done some testing and it appears that the purge solenoid won't open. to/41U0Dif How to Test a Purge Valve The P0446 code on a Chevy Silverado signals a problem with the EVAP system vent control circuit, usually due to a faulty vent control valve, loose My 03 Sierra 2500 6. joi, tui, jng, ngt, mui, hkz, buk, kib, gta, kti, tnk, lix, gqn, akn, yuz,