Overall, the GMC Sierra HD Pro is a rugged and reliable heavy-duty pickup truck. 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 2007-2008 Chevrolet Silverado Models 2007-2008 GMC Sierra Models. GMC Sierra P0443: EVAP System Purge Control Valve Circuit – Malfunction. tank and pump keeps shutting off, replaced>Filling gas tank and pump keeps shutting off, replaced. The most common cause is a bad gas cap, vapor canister, or vent solenoid. This new vent solenoid has an enhanced filtering capability and a filter element that can be easily removed and cleaned. p0446 is related specifically to the evap canister solenoid, it isnt working, and is the biggest reason you failed inspection. 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. 1L Vortec™ V8 Engine (VINs V, P, T, Z, N, U, G — RPOs LR4, LM4, LM7, L59, LQ9, LQ4, L18) After following the Service Manual diagnostic P0446 and determining that the EVAP canister vent valve is the cause of the SES light, replace the existing EVAP canister vent solenoid and. This means that regardless of which make or model of vehicle, the code will mean the same thing (Sierra or not). This code most often refers to a blockage in the EVAP. 8/5 Let’s be upfront; no used truck is perfect. 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. To diagnose and repair a vehicle with a P0446 code, you’ll need professional help. Places to Visit in Hoshiarpur. Best place for good and entertainment. Where is the EVAP hose in order to determine if its pinched or restricted? Vehicle: 2012 GMC Sierra SL V8 4. Easy Chevy Silverado GMC Sierra Evap Emission Code P0446 Fix For Free Click Here To Donate to the channelhttps://www. Simply put, the computer has detected an issue regarding the functionality of your. P0443 indicates that there is a problem with the wiring to/from the purge valve or the purge valve solenoid has a short/open circuit. The Engine Control Module (ECM) commands the EVAP purge solenoid valve Open and the EVAP vent solenoid valve Closed. Code P 0446 is: Possible causes Missing Fuel cap Incorrect fuel filler cap used Fuel filler cap remains open or fails to close Foreign matter caught in fuel filler cap Vent control valve harness is open or shorted Vent control valve circuit poor electrical connection Faulty vent control valve Code P 0455 is: Possible causes. Gas caps are relatively inexpensive and are often the fix for code P0446. P0449 Engine Code – Diagnosis & Troubleshooting. Hoshiarpur , Nawanshehar , Una , Jalandhar (Prasthala) , Ludhiana (Ludhyana) are the. The GMC Sierra 1500 is known to have issues with the EVAP system, a part of your emission control system. Easy Chevy Silverado GMC Sierra Evap Emission Code P0446 Fix. P0446 gmc sierra 1500 4x4 2011 I just bought an evap canister It came with a little filter, but it doesn’t look like my - Answered by a verified GMC Mechanic We use cookies to give you the best possible experience on our website. Now we have found the culprit! To illustrate the difference, we tested the purge valve from a different car. We tested the EVAP system and found that it had a slow leak. It means that your GMC Sierra ‘s EVAP system has a pressure sensor that is malfunctioning in some way. Vent… P0446 code on 2010 gmc sierra 1500 will not go away. Other things that can cause a P0300 trouble code are:. I looked at some of the other boards online as to find out how to fix. This trouble code is a reference number that is given to you when you plug your Sierra into a OBDII scanner. P0446 tends to be returned by diagnostic testing when the control circuit for the evap vent valve is not achieving the seal that enables the EVAP system in the vehicle to hold pressure. If the fuel cap didnt fix it, perform an EVAP system leak check. 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 2007-2008 Chevrolet Silverado Models 2007-2008 GMC Sierra Models. GMC Sierra P0443: EVAP System Purge Control Valve Circuit >GMC Sierra P0443: EVAP System Purge Control Valve Circuit. Discussion Starter · May 4, 2017 My 2006 Silverado threw the code P0446 (EVAP Vent circuit malfunction). Chevy GM truck P0446 diagnosis. However, we also include the 2004, 2011-2012, and 2016-2018 in the best years category. Heres a series of steps that worked for me to eliminate the P0446 code on my 2006 Silverado 2500HD 6. What Does the P0446 GMC Code Mean? This Diagnostic Trouble Code (DTC) tests the Evaporative Emission (EVAP) system for a restricted or blocked EVAP vent path. Nice courtesy staff and hygienic. In no particular order, heres what I did: Symptom (s): P0446 triggering Check Engine Light with hard+pending codes. 4 Causes and Fixes P0449 Chevy Silverado or GMC Sierra. Cleaned the filter on the valve and it helped for a while. Mahilpur is a Tehsil in Hoshiarpur District of Punjab State, India. P0446 (Restricted/Blocked EVAP. We recommend looking for professional help. It sets the P0446 code about every 3 months or so, pretty much like clock work. P0449: EVAP Canister Vent Solenoid Control Circuit Problem. Repair Urgency: Get this code fixed withing the next month to prevent issues related to the emissions system including failed inspections. Upgrade to ultimate luxury with the Denali Ultimate trim The top-of-the-line 2024 GMC Sierra HD Denali Ultimate trim level for the 2500 HD and 3500 HD starts at $91,900 and $97,195, respectively. Code P0446 GMC Description. In some GM cars, a bad fuel tank pressure sensor also could cause the code P0446. National Highway Traffic Safety Administration. This code most often refers to a blockage in the EVAP vent system. The purge solenoid is not very expensive to replace. GMC Sierra - Evap Canister Vent Solenoid Valve (P0446) Rolando Robles. After following the Service Manual diagnostic P0446 and determining that the EVAP canister vent valve is the cause of the SES light, replace the existing EVAP canister vent solenoid and bracket. Overall, the easiest way to identify this issue is through the engine code. Chevrolet 1500: P0446 EVAP Vent Performance. check engine light came on and was determined P0446 code with definition of EVAP System Vent Control Circuit. This vent valve is also known as the purge valve. 3 with code p0446 where this part is located at. 3L P0446 P0443 I have a 2002 GMC Sierra with a 4. What Does the P0446 GMC Code Mean? This Diagnostic Trouble Code (DTC) tests the Evaporative Emission (EVAP) system for a restricted or blocked EVAP vent path that would cause excess amounts of vacuum to be developed in the EVAP system. Not sure if it is the canister, the GM Ask an Expert Car Questions GM Repair ★★★★★ My 2014 GMC Sierra 5. check engine light came on and was determined P0446 code with definition of EVAP System Vent Control Circuit. P0446 Evaporative Emission Control System Vent Control Circuit Malfunction. The auto repairs diagnosis time and labor rates vary by location, vehicles make and model, and even your engine type. Checking the gas cap can save a lot of time. To do this, pinch off the vent tube to the EVAP Vent Control Valve. Code P0446, otherwise known as Evaporative Emission Control System (EVAP) Vent Control Circuit Malfunction, indicates that your car’s computer has detected (or believes it has detected) a problem. Flag Print this page Add Your Answer Ad My truck The o2 sensors in that truck are heated. 1: I scanned for codes, came up with P0446, did some looking around on the forums, and suggested he try to use compressed air to clean out the canister solenoid valve under the frame near the gas tank. Most commonly caused by a bad purge valve solenoid. This starting trim of the heavy-duty truck offers an impressive list of standard features at a price for the 2500 HD and 3500 HD of $44,400 and $45,600, respectively, making it a capable and dependable option for any job site. P0446 GMC - location of Evap. The National Highway Traffic Safety Administration had yet to post this recall to its online database at the time of publication. Chevy GM truck P0446 diagnosis. P0446 Code: Evaporative Emission Control System Vent Control Circuit. My 2006 Silverado threw the code P0446 (EVAP Vent circuit malfunction). 0:00 / 0:00 Chevrolet 1500: P0446 EVAP Vent Performance 270,324 views Oct 11, 2019 In this video i have a look at a 2003 Chevrolet 1500 that has a P0446 Canister Vent Valve. gmc 2500hd code po446 came on. GMC Sierra 1500 HD Classic SLE: first problem was P0449 evap…. GMC Sierra P0451: EVAP Pressure Sensor → Range/Performance. Your Silverado (Sierra) fails the emissions test. Difficulty filling up the gas tank with fuel. The 2024 GMC Sierra HD Pro is the workhorse of the full-size pickup truck segment. P0446 gmc sierra 1500 4x4 2011 I just bought an evap. GMC Sierra - Evap Canister Vent Solenoid Valve (P0446) Rolando Robles. It sets the P0446 code about every 3 months or so, pretty much like clock work. P0446 This indicates that a part of the EVAP control system is no longer fuctioning correctly. P0446: Evaporative Control System Vent Valve Performance. While the P0446 can indicate an electrical problem on later model Fords, which, for some strange reason chooses to look at the vent valve electrical circuit to set this code, the P0446 code is highly unlikely to be. August 13, 2018 by Jason One of the most common trouble codes with the GMC Sierra is the P0446 code. I have an 05 that was getting P0446. Vent valve and harness jumper, fuel tank pressure sensor, purge valve, charcoal canister, all … read more Allen Taddicken Supervisor/Lead technician 4 years college grad 455 satisfied customers 2006 GMC Envoy Denali v8 p0449 EVAP vent solenoid. My 2014 GMC Sierra 5. Does your GMC have Safety Recalls? → Check here. 1: I scanned for codes, came up with P0446, did some looking around on the forums, and suggested he try to use compressed air to clean out the canister solenoid valve under the frame near the gas tank. (Technical Service Bulletin #: 02-06-04-037J) Cause. Discussion Starter · May 4, 2017 My 2006 Silverado threw the code P0446 (EVAP Vent circuit malfunction). Where is the EVAP hose in order to determine if its. 2003 Silverado EVAP code P0446. It comes loaded with premium features to make a driving experience as luxurious as it is powerful. dILg- referrerpolicy=origin target=_blank>See full list on 700r4transmissionhq. Some parts I’ve changed 2-3x now with no luck. P0446 gmc sierra 1500 4x4 2011 I just bought an evap canister It came with a little filter, but it doesn’t look like my - Answered by a verified GMC Mechanic. We took out the evap purge vbent valve and blew it out. code Question about 2006 GMC Sierra 1500 2WD Open Question I have a 2006 gmc sierra 5. A code P0446 could mean one or more of the following has happened: Faulty vent valve Open, short or excessive resistance on Vent valve control circuit Blockage of vent valve Bad PCM Possible Solutions With a P0446 OBD-II trouble code, here are some things to try: Replace Vent valve Repair open, short, or resistance problem in control circuit. The evap vent valve in most makes and models depends on a supply of a 12V battery voltage with key on. Quick regarding EVAP system (P0446). How does the EVAP system vent control work? The Evaporative (EVAP) Emission Control System is one of the methods your engine uses to limit its harmful emissions. My 2006 Silverado threw the code P0446 (EVAP Vent circuit malfunction). The computer is responsible for monitoring and controlling the purge valve. After following the published SI diagnostics for P0446 and determining that the EVAP canister vent valve is the cause of the MIL light, replace the existing EVAP canister vent valve assembly with a new assembly. The vent solenoid opens a fresh air line into the canister. A very common issue with the GMC Sierra is the P0449 code. P0443 indicates that there is a problem with the process that commands the purge valve solenoid. We took out the evap purge vbent valve and blew. P0446 Indicates that there is a fault in the evaporative emission control system. P0446 code on 2010 gmc sierra 1500 will not go away. A P0446 error code indicates an evaporative emission control system (EVAP) vent control circuit malfunction. What is the Cost to Diagnose the Code P0463 GMC? Labor: 1. How to Fix a P0449 Engine Code – Chevy When you get a P0449 error code on your Chevy, the problem is most frequently caused by the vent valve failing stuck open. The P0446 is actually a known problem and GM has issued a Technical Service Bulletin that states the most common problem associated with the P0446 is a faulty Evaporative Emission (EVAP) Vent Valve Solenoid Assembly and Add/Relocate Filter Box Using Service Kit. 2016-2018 GMC Sierra 1500 FIXD Reliability Score: 6-9/10 Owner Reliability Score: 9-10/10 KBB Value: $15,849-$20,790 Fuel Economy: 18 MPG Average Annual Maintenance/Repair: $525-$821 Average Likelihood of a $500+ Repair in 2022: 83%-93% Safety Rating: 4. Any feedback, related to content, design, or technology may be submitted at Feedback section. You can also contact us at the following address: office of Deputy Commissioner, District Administrative Complex, Mini Secretariat, Hoshiarpur Punjab, INDIA-146001 Phone. What Does the P0446 Code Mean? Trouble code P0446 stands for an Evaporative Emission Control System (EVAP) Vent Control Circuit Malfunction. 2016-2018 GMC Sierra 1500 FIXD Reliability Score: 6-9/10 Owner Reliability Score: 9-10/10 KBB Value: $15,849-$20,790 Fuel Economy: 18 MPG Average Annual Maintenance/Repair: $525-$821 Average Likelihood of a $500+ Repair in 2022: 83%-93% Safety Rating: 4. engine light on steady - onstar gave code p0446. The upcoming GMC is the first-of-its-kind in the kandi region, with an intake capacity of 100 seats, and would be instrumental in providing quality healthcare and diagnostic services. Easy Chevy Silverado GMC Sierra Evap Emission Code P0446 Fix >Easy Chevy Silverado GMC Sierra Evap Emission Code P0446 Fix. The Sierra’s ECM commands the purge valve by activating a ground circuit. I have a 2006 gmc sierra 5. Trouble code P0446 stands for an Evaporative Emission Control System (EVAP) Vent Control Circuit Malfunction. 2: Instead of trying to clean it, he had a mechanic replace it. Unfortunately, bad intake manifold gaskets are not the only thing that can cause a P0300 trouble code. 0 The cost to diagnose the P0463 GMC code is 1. Best & Worst Years of GMC Sierra 1500. Chevrolet 1500: P0446 EVAP Vent Performance 270,324 views Oct 11, 2019 In this video i have a look at a 2003 Chevrolet 1500 that has a P0446 Canister Vent Valve Performance code stored in. 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 2007-2009 Chevrolet Silverado Models (Excluding Hybrid). I have an 05 that was getting P0446. 2002 GMC Sierra 4. P0446 Code – Meaning, Causes, Symptoms (& How To Fix). I do a lot of off roading in the truck. - In Mazda Tribute and Mazda 6, the stuck open purge valve (solenoid) could cause the code P0446 or other EVAP codes. GMC Sierra 1500 Classic SLE: I have a code P0449 Evaporative…>GMC Sierra 1500 Classic SLE: I have a code P0449 Evaporative…. This Diagnostic Trouble Code (DTC) tests the Evaporative Emission (EVAP) system for a restricted or blocked EVAP vent path that would cause excess amounts of vacuum to be developed in the EVAP system. This trouble code references a number that is given to you when you plug your Sierra into a OBDII scanner. 2000– 2003 GMC Yukon, Yukon XL with 4. National Highway Traffic Safety Administration. That will set a P0446 code. A trouble code P0449: EVAP Canister Vent Solenoid Control Circuit Problem means that the EVAP vent solenoid is not functioning properly. This EVAP system leak will cause fuel vapors to escape into the atmosphere. The top-of-the-line 2024 GMC Sierra HD Denali Ultimate trim level for the 2500 HD and 3500 HD starts at $91,900 and $97,195, respectively. This website is designed & developed by National Informatics Center and contents provided by District Administration Hoshiarpur. 3 error code P0446. What Does the P0446 Code Mean? Trouble code P0446 stands for an Evaporative Emission Control System (EVAP) Vent Control Circuit Malfunction. Pressurize the EVAP system with an EVAP smoke machine leak checker. These steps are for informational purposes only, First: They’ll. When I replaced the vent valve, I realize that it had been replaced back in 2011. P0449 deals with the evaporative. thanks Posted by Anonymous on Dec 01, 2010 Want Answer 0 Clicking this will make more experts see the question and we will remind you when it gets answered. Now its throwing the code again, but only last tank was slow to fill. GMC Sierra - Evap Canister Vent Solenoid Valve (P0446) Rolando Robles. The 2024 GMC Sierra HD Pro is the workhorse of the full-size pickup truck segment. Vent P0446 code on 2010 gmc sierra 1500 will not go away. GMC Canyon Recalled Over EVAP Canister Issue >Chevy Colorado, GMC Canyon Recalled Over EVAP Canister Issue. After following the Service Manual diagnostic P0446 and determining that the EVAP canister vent valve is the cause of the SES light, replace the existing EVAP canister vent solenoid and bracket. Some parts Ive chang… read more Allen Taddicken Supervisor/Lead technician 4 years college grad 778 satisfied customers I have a 2009 sierra denali 6. The code P0446 is triggered by the engine computer (ECU) when theres a malfunction in the EVAP control system vent control valve. After following the published SI diagnostics for P0446 and determining that the EVAP canister vent valve is the cause of the MIL light, replace the existing EVAP canister vent valve assembly with a new assembly. Even u get pizza / chinese in cinema. Search 11 La Roda new & custom home builders to find the best custom home builder for your project. This new assembly is a sealed unit that is designed to be vented through a remote filter box. asked Apr 4, 2017 by anonymous. Correctly diagnosing P0446 code on Chevrolet and GM cars and trucks Show more. We took out the evap purge vbent valve and blew it out. P0446 GMC Code Meaning, Causes, Symptoms, & Tech Notes (With. 3 with code p0446 where this part is located at. Vent valve and harness jumper, fuel tank pressure sensor, purge valve, charcoal canister, all lines,. Correctly diagnosing P0446 code on Chevrolet and. Code P0446, otherwise known as Evaporative Emission Control System (EVAP) Vent Control Circuit Malfunction, indicates that your car’s computer has detected (or believes it has detected) a problem with the function of the EVAP system vent valve. GMC Sierra HD Cost?>How Much Does a Fully Loaded 2024 GMC Sierra HD Cost?. Pressure in the gas tank when you remove the gas tank cap. Code: p0446. 6L V8 Duramax Turbo Diesel Engine paired with an Allison 10-speed. com%2fp0446-gmc-sierra%2f/RK=2/RS=d_TXVe_nZ. Most auto repair shops charge between $75 and $150 per hour. truck wont take fuel and has code P0446. The cost to diagnose the P0446 GMC code is 1. P0446 Evaporative Emission Control System Incorrect Purge Flow. If these vehicles are driven in dusty conditions, road grit and dust can accumulate in the vent solenoid resulting in a restriction. This code is not associated with a bad gas cap or faulty EVAP Purge solenoid (on top of the intake manifold). P0446 tends to be returned by diagnostic testing when the control circuit for the evap vent valve is not achieving the seal that enables the EVAP system in the vehicle to hold pressure. check engine light came on and was determined P0446 code with definition of EVAP System Vent Control Circuit. If the electrical connector to your EVAP vent solenoid is bad, youll need to trace down that problem. That said, you’ll want to steer clear of the worst years of the Sierra 1500: 2001-2003, 2005-2006, 2007-2010, 2013, 2014-2015, and 2019-2020. We use cookies to give you the best possible experience on our website. Sierra P0443 Causes. To diagnose and repair a vehicle with a P0446 code, you’ll need professional help. An additional thing to check is whether or not any of the (hard plastic) hosted are bent/kinked -- fix them if they are. Code P0446 sometimes indicates that an electrical failure has been detected in either the vent valve itself or its control circuit. What needs to be checked: Vent control valve. A P0449 Code is an “ Evaporative System Vent Control Circuit Malfunction. 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). Does your GMC have Safety Recalls? → Check here What are Code P0446 GMC Possible Symptoms?. What is the Cost to Diagnose the Code P0463 GMC? Labor: 1. P0443 Symptoms: GMC Sierra. I have a 2006 gmc sierra 5. Bodega Sierra Norte - La Roda. P0446 Gmc SierraWhat Does the P0446 GMC Code Mean? This Diagnostic Trouble Code (DTC) tests the Evaporative Emission (EVAP) system for a restricted or blocked EVAP vent path that would cause excess amounts of vacuum to be developed in the EVAP system. and Fixes P0449 Chevy Silverado or GMC Sierra>4 Causes and Fixes P0449 Chevy Silverado or GMC Sierra. What can cause the code P0446: - faulty vent control valve - blockage at the vent hose, vent filter or vent control valve - open or short in the vent control valve circuit - bad charcoal canister - EVAP system leak - faulty EVAP system pressure sensor - bad vacuum switching valve (VSV) (Toyota, Lexus) - stuck open purge valve (solenoid) Examples:. This generic OBD-II code indicates that the evaporative vent valve in the. P0446 2004 GMC Sierra 1500 5. Chevy GM truck P0446 diagnosis. Easy Chevy Silverado GMC Sierra Evap Emission Code P0446 Fix For Free Click Here To Donate to the channelhttps://www. 4 places sorted by traveler favorites. Gas caps are relatively inexpensive and are often the fix for code P0446. 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 2007-2009 Chevrolet Silverado Models (Excluding Hybrid). ” This means the onboard computer (ECM) is seeing a problem in the EVAP system. See the top reviewed local custom home builders in La Roda, Castile-La. The code technically stands for: Evaporative Emission Control System Vent Control Circuit Malfunction. In some GM cars, a bad fuel tank pressure sensor also could cause the code P0446. Unsurprisingly, the best year of the GMC Sierra 1500 is a newer model year, the 2021. P0443 occurs when the ECM has told the purge valve to open and it detects that didn’t open due to a wiring issue. I have the Haynes manual bought from Auto Zone. Chevrolet 1500: P0446 EVAP Vent Performance 270,324 views Oct 11, 2019 In this video i have a look at a 2003 Chevrolet 1500 that has a P0446 Canister Vent Valve Performance code stored in. GMC Sierra P0443: EVAP System Purge Control Valve Circuit. P0446 This indicates that a part of the EVAP control system is no longer fuctioning correctly. Check engine light went out for a day then came back on with the same code. P0446 code on 2010 gmc sierra 1500 will not go away. When I replaced the vent valve, I. 8L gmc p0446 trouble-code 1 Answer 0 votes answered Jun 10, 2017 by Carguy1 (12. Trouble code P0446 stands for an Evaporative Emission Control System (EVAP) Vent Control Circuit Malfunction. National Highway Traffic Safety Administration. A P0442: EVAP System Leak Detected tells you that your Silverado or Sierras fuel injection computer has pressurized the EVAP system to test for leaks and has found one. com/_ylt=AwrNPPAAU1VkewgU2EtXNyoA;_ylu=Y29sbwNiZjEEcG9zAzMEdnRpZAMEc2VjA3Ny/RV=2/RE=1683342209/RO=10/RU=https%3a%2f%2fwww. The fix is to replace the vent solenoid and bracket with a newer design. The intake manifold gaskets on the V8 Chevrolet Silverado (GMC Sierra) are made of rubber (plenum) and plastic (lower manifold) and are infamous for failing and causing vacuum leaks. Flag Print this page Add Your Answer Ad My truck. I have an 05 that was getting P0446. 3 and after throwing a bunch of parts at it, had it checked at a shop and it turned out to be a bad fuel tank pressure sensor. Correctly diagnosing P0446 code on Chevrolet and GM cars and trucks. Mahilpur Tehsil Head Quarters is Mahilpur town. 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. gmc; code; p0446; 0 votes. Still getting the P0446 code? Other things to try: A. P0446 Code – Meaning, Causes, Symptoms (& How To Fix)>P0446 Code – Meaning, Causes, Symptoms (& How To Fix). Do … read more Jerry Service consultant Vocational, Technical or Tra 13,108 satisfied customers 2006 Yukon: runs fine. The EVAP vent solenoids job is to allow ambient air into the charcoal canister so that fuel vapors can be purged from the activated carbon in the EVAP canister. asked Jul 8, 2018 by anonymous. I do a lot of off Answered in 3 minutes by: GM Mechanic: Gary Welcome! My name is ***** ***** I will do my best to. Chevy Silverado Forum (GMC Sierra) Quick regarding EVAP system (P0446) 10580 Views 3 Replies 3 Participants Last post by SilveradoV81500, Mar 22, 2017. P0446 is a universal OBDII trouble code. P0446 Evaporative Emission Control System Vent Control Circuit …. 3 liter what could still cause the evap system to trigger the light. Trouble code P0446 typically turns up in On-Board Diagnostic testing on account of an illuminated Check Engine Malfunction Indicator Lamp. 3 with code p0446 where this. When this happens, you need to replace the whole canister which has the vent valve attached to it. If the fuel cap didn’t fix it, perform. ron7000. I just bought an Actron CP9180 from Auto Zone because I began to think it was a pain for them to erase the. com/cgi-bin/webscr?cmd=_s-xclick&. Check engine light went out for a day then came Related GM Questions P0446 code. A vacuum switch is used to detect when flow exists. 3L P0446 P0443 I have a 2002 GMC Sierra with a 4. asked Apr 25, 2018 by Greg check engine light came on and was determined P0446 code with definition of EVAP System Vent Control Circuit. 2016-2018 GMC Sierra 1500 FIXD Reliability Score: 6-9/10 Owner Reliability Score: 9-10/10 KBB Value: $15,849-$20,790 Fuel Economy: 18 MPG Average Annual Maintenance/Repair: $525-$821 Average Likelihood of a $500+ Repair in 2022: 83%-93% Safety Rating: 4. P0446 This indicates that a part of the EVAP control system is no longer fuctioning correctly. Henlehall Discussion It is throwing a P0446 code, and after going through forums and fixes online, it seems like my best bet is to start with blowing out/replacing the evap vent. This Diagnostic Trouble Code (DTC) tests the Evaporative Emission (EVAP) system for a restricted or blocked EVAP vent. Code came back, so I got the updated part with the remote filter and installed that along with a new charcoal canister. P0446 gmc sierra 1500 4x4 2011 I just bought an evap canister It came with a little filter, but it doesn’t look like my - Answered by a verified GMC Mechanic We use cookies to give you the best possible experience on our website. 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 2007-2008 Chevrolet Silverado Models. gmc; 8cyl; 0 votes. P0446: Evaporative Control System Vent Valve Performance. P0446 GMC Code Meaning, Causes, Symptoms, & Tech Notes (With Video). P0446 gmc sierra 1500 4x4 2011 I just bought an evap>P0446 gmc sierra 1500 4x4 2011 I just bought an evap.