I have a po446/po446p codes on my 2003 silverado. The dealer replaced the evap sensor and I think the vent in late April 2017 and it's throwing the same code again in just under 2000 miles later. - A GM technical service bulletin for 1999-2007 Chevrolet Silverado and GMC Sierra describes a problem when if the vehicle is driven in dusty environment, the dust can enter into the canister vent hose and cause restricted air flow that can set the code P0446. 24/09/2012 · Alex, did you replace the vent solenoid valve itself too, or did you just relocate the vent tube? I just went through this with mine a few weeks ago, not only did we have to relocate the vent tube, but the vent solenoid valve was malfunctioning too, and needed to be replaced.
10/06/2016 · i have this code, P0446, come up on a regular bases i have replaced all components. I was told from a dealer that it could be a "ghost code". i don't want to spend $200 for a dealer to check or change what i have already done. The code and CEL keep coming back. I took it in to a shop to get checked out, they said it had other codes and the intake has a leak I don't remember what codes they got, but I remember seeing a P0171 along with P0446 a couple of times. They said since the intake is leaking it won't create enough vacuum to successfully complete the EVAP test.
28/11/2015 · Hello. I have a 2004 Silverado CCSB, Z-71 4wd, 5.3L, and 4l60E automatic transmission. I bought the truck new off the lot and it now has roughly 21,100 miles on the odometer. In February the check engine light came on and the scanner showed P0446. I took it to my local Chevy dealer for repair. P0446 CHEVROLET Tech Notes Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition. There is a bulletin for the following models: 1999-2007 Chevrolet Silverado Classic Models 2007-2008 Chevrolet Silverado Models Chevrolet Factory Service Bulletin OBDII Code P0446. 16/10/2010 · I have a 2003 GMC Sierra 4.8L 1500 single cab. My SES light came on about a week ago so I went to advance auto parts and pulled the code p0446. Do I replace the vent valve or the purge solenoid. The new solenoid kit is like $140 but there is also a part for around $25. I. Cuando se establece el código de falla P0446 OBD II significa que uno o más de los siguientes problemas ha ocurrido: La tapa de combustible puede que esté conectada de manera incorrecta o que haya algún elemento presente. La resistencia del circuito de control de la válvula de ventilación pudiera estar en corto, quizás es muy alta. 04/02/2012 · 2003 silverado 4.8 the light came on and gave me the p0446 code. I replaced the evap vent solenoid with the new updated gm part. Light comes back on, replaced evap purge solenoid, light came back on, then replaced evap canister, light still comes back on. I don't know where else to look at.
18/03/2011 · I had Elite for over 4 years. Very dependable, well-made and not a drop got through over that time, but looks kind of meh. Now I have MX4. Looks way better, but its not waterproof and cant be due to construction - some water gets inside. Not much, but enough to notice. Also it doesnt look like an. 2001 1500 silverado 5.3l p0446 vent valve problem clogged repaced it and p0446 keeps coming on any ideas out there? - Answered by a verified Chevy Mechanic. 2003 avalanche 1500. Code p0446. I changed the vent solenoid and the engine light is still on. - Chevrolet 2003 Avalanche question.
10/09/2015 · Code P0446- Failed EVAP vent solenoid- 2003 Yukon??? Discussion in 'Engine. a mod that requires a section of heater hose to relocate the valve as I live on a dirt road and keep throwing the P0446. Just call up the dealer and ask them for the updated evap purge valve for a 06 Sierra/Silverado and it will automatically give. A very common issue with the Chevy Silverado is the P0449 code. This trouble code is a reference number that is given to you when you plug your Silverado into a OBDII scanner. P0449 deals with the evaporative emissions control system. It often appears with, or is related other codes, such as P0420, P0446, and very often P0440. One of the most common trouble codes with the Chevy Silverado is the P0455 code. This trouble code references a number that is given to you when you plug your Silverado into a OBDII scanner. P0455 Indicates that there is a large leak in the evaporative emission control system. 25/06/2014 · 2005 Chevy Silverado P0446 Dealership cannot fix Post by chappy_2336 » Wed Aug 06, 2008 5:44 pm My dealership cannot fix my problem, I keep getting p0446 code, dealer replaced vent valve twice, replaced the evap canister, basically tore the whole system apart and could find no faults. Code P0446. Chevy Truck Forum Silverado Sierra GMC Truck Forums. Code P0446. Apr 02 2014, 5:46pm. Changed the vent solenoid, found water in it. Code P0446. Apr 03 2015, 3:17pm. One suggestion when filling gas tank and the pump clicks off Do.
|I have a 2003 chevy silverado 5.3 it has a p0446 code the vent solenoid has already been replaced i put my scan tool on - Answered by a verified Chevy Mechanic.||What Does P0446 Code Mean? OBD-II Code P0446 is defined as a Evaporative System Vent Control Circuit Malfunction. The evaporative control EVAP system captures any raw fuel evaporating from the fuel storage system e.g. the fuel tank, filler neck, and fuel cap.|
As the title says: some might have an ses p0446, evap emissions vent circuit low. If you take it to the dealer they want 300-400.00 to fix the problem. GM has a service bulletin on this condition and have the updated part for 180.00, thats suppose to eliminate this issue. When the Chevy Silverado’s computer detects that the EVAP systemic not holding any pressure, it will throw the P0442 code. Chevy Silverado P0442 Causes. There are many things that can cause the P0442 trouble code on the Chevrolet Silverado. The most common problem is. 20/05/2017 · Ive been chasing this P0446 code for months, I have good volts at each elec plug, I've changed several parts. My issue is this, I've mentioned it before and was dismissed!!!!! if I only fill my tank up 3/4 the check engine light goes out and when scanned theres no code period, not even a yellow warning light on scanner that says I might have an.
2003 Chevrolet Tahoe / P0446 engine light; P0446 engine light 2003 Chevrolet Tahoe check engine light, P0446 evap. where is the vent solinoid located. trebor1 in Hyattsville, MD on. March 15, 2010. Answer. Like this comment? Sign in or register to let us know!. 1999-2003 Model Year Use Service Kit P/N 19152345 Subject: DTC P0446 Restricted/Blocked EVAP Vent Path Set, Check Engine Light On Replace Evaporative Emission EVAP Vent Valve Solenoid Assembly and Add/Relocate Filter Box Using Service Kit Models: 1999-2007 Chevrolet Silverado Classic Models 1999-2007 GMC Sierra Classic Models.
P0420 is another common trouble code that accompanies P0446. GMC Sierra P0446 OBDII Code Symptoms Most of the time, the only symptom of P0446 is going to be the check engine light. P0446 code will typically not be accompanied by any noticeable symptoms. The service engine soon light will come on, but that is usually about it. 22/03/2010 · In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. 2003 Chevy Silverado 1500 5.3L evap emission control system vent solenoid replacement diagram Need to replace the - Chevrolet 2003 Silverado 1500 question.
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