Code also may refer to ECM detecting that EVAP system is unable to achieve or maintain vacuum during test. Causes: 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.Jul 21, 2022 · P0446 2018 Chevrolet Silverado Code - Evaporative Emission Vent System Performance - Code Popularity: 2,982 Views - Repair Importance Level: 1/3Common causes of the P0446 code may include a faulty vent control valve, a damaged or clogged charcoal canister, broken vacuum or fuel vapor hoses, or issues with the wiring around the vent valve or purge solenoid. Alternatively, the Power Control Module responsible for controlling the EVAP system could also be defective.How do you fix the po446 code on a 2001 Chevy silverado? ow do you find out where the parts are on a 2001 silverado for the emission control system.Jul 16, 2020 · The fault code P0446 in the 2004 Chevy Silverado means that the computer has detected an electrical issue within the EVAP system vent control. The ECM sends a signal to the vent control valve to purge the gas vapors from the charcoal canister and directs them to the engine. When the P0446 fault happens, they vapors arent being …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 it. Before you load the parts cannon hav...To diagnose the P0446 2015 Chevrolet Silverado code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.All in all, the path to trouble-shooting the P0700 code in a Chevy Silverado begins with understanding the problem, identifying the cause, and then tackling it head-on. In this journey, technology stands as a faithful ally. Embrace it, and ensure a smooth road ahead for your Chevy Silverado. Solutions and Fixes for the P0700 Code2017 chevy 1500 crew cab silverado 4 x 4 Lt with 5.3L engine just today through 2 codes one P0446 which is EVAP and then - Answered by a verified Chevy Mechanic. ... I have a C0800-03 code on my chevy silverado 2017 I also have an intrmittent airbag service light come on when it is very hot or parkrd in the direct sunlight. ...Hello, I have a family member that has a 2004 Malibu (the classic body, not the newer gen) and it threw a p0446 code which is evap control valve. Problem is I'm 8 hours away and won't be there to look for myself for another week and a half. ... A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. Come ...Feb 8, 2023 · P0442 codes typically indicate a very small leak in the evaporative emission control system. Below are some tips to help you resolve the P0442 code in your Chevy Silverado: 1. Investigate the Fuel Cap. One of the most common causes of P0442 codes in Chevy Silverados is a loose or faulty fuel cap.How to fix Code P0449 EVAP Vent Solenoid on GM vehicles, Silverado , Tahoe, Suburban, Yukon! Make sure that you use quality parts and tools!!!!I hope this vi...A prevalent issue with the Chevy HHR is the P0446 code. This code corresponds to a specific number obtained when connecting your HHR to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Table of Contents Definition Symptoms Causes Diagnosis How to Fix P0446 Definition P0446 is a standard OBDII trouble code,Sep 2, 2019 · P0446 is triggered when the ECM has detected improper resistance in the circuitry to activate the vent control valve. Check the Ground and power wires to the vent valve. P0446 can also trigger when the EVAP tank pressure sensor shows that it failed to maintain the vacuum during the active EVAP leakdown test.2007 chevy silverado crewcab 4x4 have evgine code po446, what does this mean? Submitted: 13 years ago. Category: Chevy. Show More. Show Less. ... I work at advance auto parts and i cant figure out what this code means exactly, po446, 99 chevy silverado 5.3 half ton please help me ...Do you have a 2007-2008 Chevy Avalanche, Silverado or GMC Sierra and are experiencing an illuminated check engine light and stored code P0121 and possibly a ...=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code CHEVROLET P0336 Saving Re...2000 Chevrolet Silverado 1500 PO446 PO446 - Chevrolet 2000 Silverado 1500 question. Search Fixya. Browse Categories Answer Questions . 2000 Chevrolet Silverado 1500 ... What does an obd11 code of po446 mean on a 2000 chevy silverado 1500? It is for the canister vent solenoid. Gm has a service bulletin out on this.A little bit ago my engine light came on and I got the code PO442. ... I had one code, PO442. Replaced gas cap and solenoid. After, starting seemed fine. Then I got the PO446 and after I filled up I got the hard start. Any help is appreciated. ... A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts ...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 a 1998 5.7 Silverado. 127000miles, code p0446 comes on, I have replaced the vent purge valve and it still will - Answered by a verified Chevy Mechanic. ... 2004 chevy silverado, code P0446: (EVAP) vent control circuit malfunction. Recently had code P0442, found and replaced a broken gas cap gasket. ...Jul 21, 2022 · To diagnose the P0446 2018 Chevrolet Silverado code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.18 Apr 2021 ... If you're a Chevy Silverado 2000 owner dealing with a P0440 code, Bayu's latest video is a must-watch! In this informative episode, ...For that reason, the P0446 code will sometimes be a sign that an electrical failure has been detected with either the control circuit or the vent valve, which may result in any number of codes ...I was hoping to get some guidance on this issue. I got the p0446 code, replaced the fuel tank pressure sensor. I am unsure of how to proceed to see if it cleared the codes; is it best to reset the codes or simply allow the vehicle to go through it's evap cycle (no sure how long this is, seems like 50 miles usually). Sorry if this a dumb question.3 months later the service engine soon light comes on so i have it scanned at advance auto. 1 code comes up, PO446. Truck seems to run well. Any ideas?? Thanks. :?: Save Share. Like. ... Chevy Silverado and GMC Sierra Forum. 1.4M posts 180.1K members Since 2009 A forum community dedicated to Chevrolet Silverado and GMC …in this video I will share with you how to diagnose and Repair the Root cause of a P0446 on a Chevy ImpalaMarch 23, 2019 by Jason. P0156 is an OBDII trouble code that occurs in the Chevy Silverado. It is typically caused when the O2 Sensor voltage is not within its specified operating range. Bank two will be the side of the engine with cylinder 2 in the firing order. Sensor 2 is aft of the catalytic converter.Feb 12, 2024 · According to the GM service bulletin, in some 2011-2013 Chevy, Buick and Cadillac vehicles the code P0442 might be caused by the leaking EVAP Vent Solenoid (CVS). The vent solenoid must be tested under vacuum and replaced if leaking.I am trying to diagnose an 2005 silverado 5.3 2wheel drive pickup. It came into my shop with a po446 trouble code. (go - Answered by a verified Chevy MechanicP0456 Evap Emission Control System Leak Detected (very small leak) P0457 Evap Emission Ctrl System Leak Detected (fuel cap loose/off) P0458 Evaporative Emission System Purge Control Valve Circuit Low. P0459 Evaporative Emission System Purge Control Valve Circuit High. P0465 Evap Purge Flow Sensor Circuit.Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. RB The Mechanic assumes no ...Code P0496 Definition. P0496 - EVAP (evaporative emission) Flow During A Non-Purge Condition. What Does the P0496 Code Mean? The P0496 code indicates that there's an incorrect amount of intake vacuum flow occurring in the car's EVAP system. Any time this vacuum is higher than what the computer determines is appropriate, the codes will be set.Electrical Testing. The below is true for a 2007 Silverado with 5.3L LH6 Engine but most likely same for your 2009. Both valves are powered through fuses and are switched to Ground thru the ECM. Purge Solenoid powered through relay PWR/TRN to Fuse 5 "ENG" 5A, Power Wire Pink, Ground wire Dark Green/White.Oct 26, 2017 · Subject: Check Engine Light On, Fuel Tank Hard to Fill, DTCs P0442, P0446, P0455 or P0449 Set (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. 2007-2010 Chevrolet Silverado Models ...Aug 30, 2020 · 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. The EVAP vent solenoid's 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.Hey everyone, I have a 2003 gmc sierra 1500 4.8 2wd that is throwing a p0446 code: Subject: DTC P0446 (Restricted/Blocked EVAP Vent Path) Set, Service Engine Soon (SES) Lamp Illuminated (Replace Hose/Evaporative Emission (EVAP) Canister Vent Asm) #02-06-04-037A2005 Chevrolet Silverado 2500 HD 6.0 L Automatic. Getting a P0446 code. Replaced the Vent valve and hoses. Did the service bay test. On phase 3 it comes back with lost communication and set a P0449 co … read moreThe P0446 fault code is related to the Evaporative Emission (EVAP) system in your automobile. It specifically tests for any restrictions or blockages in the EVAP vent path, which can cause excessive vacuum pressure to build up in the system. When this fault code is triggered, the Engine Control Module (ECM) commands the EVAP purge solenoid ...1 Apr 2023 ... EVAP Vent Solenoid – 1999-2006 5.3L Chevy Silverado (Sierra, Tahoe, Yukon, etc.) ... chevy gmc p0446 ... Codes P0446, P0455: What Causes a Car EVAP ...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.P0446 / P0453. I have had a check engine light on my 2012 Silverado 5.3L for a year and a half. I also randomly get the tighten fuel cap message on occasion. I have code P0446 and P0453. I have changed the purge solenoid, evap canister vent solenoid, fuel tank pressure sensor, and several different gas caps. Nothing helps.Code P0446. Jump to Latest Follow ... A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Show Less .2009 chevy 1500 with a 5.3 i have codes po446 andpo451. Silverado. I replaced the fuel pump evep solenoid purge valve - Answered by a verified Chevy Mechanic. We use cookies to give you the best possible experience on our website. ... Chevrolet Silverado 1500: I am trying to diagnose an 2005 silverado.I have a 2003 Chevy Silverado. Engine light is on and code reads P0446. Most research I have done points to the vent - Answered by a verified Chevy Mechanic. By chatting and providing personal info, ... I have 2017 Chevy Silverado 1500 I have the code P0446 What.The factory stereo installed in the Chevy Colorado only has an AM/FM stereo tuner and a CD player. Many aftermarket stereos, on the other hand, have auxiliary inputs, iPod control ...Jan 14, 2023 · 1. Check For Other Codes. Additional codes can offer critical info about your Silverado’s condition. Rarely does P0175 Chevy show up alone (if it does look for a vacuum leak, bad O2 sensor, or dirty MAF).. 2. Spot The Weird Odor. While the engine operates, a strong gas smell could be coming from a leaky injector or a fault with fuel regulation.Uno de los códigos de avería más comunes con el Chevy Silverado es el Código P0446. Este código de avería hace referencia a un número que se te da cuando conectas tu Silverado a un escáner OBDII. P0446 Indica que hay un fallo en el sistema de control de emisiones por evaporación. A menudo aparece con otros códigos, como P0420, P0441 o ...Labor: 1.0. To diagnose the P0446 Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.Code P0496 Definition. P0496 - EVAP (evaporative emission) Flow During A Non-Purge Condition. What Does the P0496 Code Mean? The P0496 code indicates that there's an incorrect amount of intake vacuum flow occurring in the car's EVAP system. Any time this vacuum is higher than what the computer determines is appropriate, the codes will be set.are jay replacing the evap solenoid/valve on a chevyv5.3l engine to fix check engine light code P0446 evap solenoidDec 5, 2023 · The P0449 code is a common diagnostic trouble code (DTC) that is specific to Chevrolet Silverado vehicles. This code is related to the EVAP (evaporative emission control) system and indicates an issue with the vent valve/solenoid circuit. The EVAP system plays a crucial role in controlling vehicle emissions by capturing and storing fuel vapors ...3 months later the service engine soon light comes on so i have it scanned at advance auto. 1 code comes up, PO446. Truck seems to run well. Any ideas?? Thanks. :?: Save Share. Like. ... Chevy Silverado and GMC Sierra Forum. 1.4M posts 180.1K members Since 2009 A forum community dedicated to Chevrolet Silverado and GMC …The great American sports car is going electric. GM shared the news this morning, and released the first images of the upcoming electric Chevrolet Corvette. The great American spor...P0446 Code. I've got a 2001 Silverado 1500 with the 4.8 V8. The truck has 84,000 miles on it and has the P0446 code and P0446 pending code. I did some research and replaced the vent solenoid thing between the cab and bed. The light came back on two days later. I decided to replace the gas cap, and the light came on again.2003 Chevy Silverado with a code of p0446 evap vent control problem and solutionThe automobile fault code P2635 can be caused by a faulty fuel pump. It can also be caused by an open or shorted fuel pump harness. Poor electrical connection in the fuel pump circuit can also trigger this fault code. Additionally, a faulty fuel pump control module, if applicable, can cause the P2635 fault code to appear.Code po446 - 1999 Chevrolet Silverado 1500. Posted by whiz851 on Nov 17, 2010. Want Answer 0. Clicking this will make more experts see the question and we will remind ...Easy Chevy Silverado GMC Sierra Evap Emission Code P0446 Fix For Free Click Here To Donate to the channelhttps://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&...When the pressure inside of the fuel tank is too high, P0453, is thrown and the check engine light comes on. If the only trouble code that you have is P0453, your Silverado is in no risk of breaking down. The EVAP system is responsible for migrating fuel vapor. Whether it is doing that or not, has no effect on the way your engine runs.The famous p0463 I have a 2008 chevy silverado extended cab with 5.3 liter engine. my Po446 missing part suspension fail code end front forum reply chevrolet Vent solenoid evap valve silverado chevy location 2005 2003 2006 canister fix gmc 1500 sierra pickup filter chevrolet 2001 1999A prevalent issue with the Chevy HHR is the P0446 code. This code corresponds to a specific number obtained when connecting your HHR to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Table of Contents Definition Symptoms Causes Diagnosis How to Fix P0446 Definition P0446 is a standard OBDII trouble code,nealinator. 18285 posts · Joined 2015. #2 · Aug 30, 2018. Well the U0073 & U0100 look like an ECM failure or maybe there is a disconnect or wire issue somewhere. Those darn P0446 type emissions codes can be a pain. Looking for hoses with cracks or disconnects or checking the vent solenoid is most likely culprit. TPMS would be completely separate.I got the p0446 code, replaced the fuel tank pressure sensor. I am unsure of how to proceed to see if it cleared the codes; is it best to reset the codes or simply allow the vehicle to go through it's evap cycle (no sure how long this is, seems like 50 miles usually). ... Chevy Silverado and GMC Sierra Forum. 1.4M posts 185.5K members …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. P0449: Evaporative Emission Control System Vent Valve/Solenoid Circuit …2005 Chevrolet Silverado 2500 HD 6.0 L Automatic. Getting a P0446 code. Replaced the Vent valve and hoses. Did the service bay test. On phase 3 it comes back with lost communication and set a P0449 co … read moreIt almost goes without saying that checking and changing your vehicle’s fluids regularly is essential for keeping it running its best. And when it comes to your Chevy truck, there ...I have a 2015 Chevy Silverado 4x4 4.3. Trouble code p0446. ... Have a 2004 Chevy S10 4.3 L engine. Code P0446 won't let me fill up gas tank unless I disconnect the emission canister on the line that comes from the gas tank. Could it be a bad canister or a bad con ...Jan 26, 2017 · P0456 Evap Emission Control System Leak Detected (very small leak) P0457 Evap Emission Ctrl System Leak Detected (fuel cap loose/off) P0458 Evaporative Emission System Purge Control Valve Circuit Low. P0459 Evaporative Emission System Purge Control Valve Circuit High. P0465 Evap Purge Flow Sensor Circuit.The ECM's driver controls the ground, and when grounded, activates the valve (closing it). If the ECM detects a short to ground, and open,or a short to battery voltage on the control circuit, P0446 will set. Code also may refer to ECM detecting that EVAP system is unable to achieve or maintain vacuum during test.So, a P0446 code is showing up on your Chevy Silverado, and you have no idea what it is. No need to worry! We are here to help you understand what P0446 in a Chevy means, what causes code P0446, and how you can solve it as soon as possible. OBD-II codes should not be taken lightly, especially when you do not know what it is.One of the most common trouble codes is the P0446 code. This trouble code references a number that is given to you when you plug your vehicle into a OBDII scanner. P0446 Indicates that there is a fault in the evaporative emission control system. ... Chevy Aveo P0446: Meaning, Causes, How to Fix. Jason on Mazda 6 P0320: Meaning, Causes ...=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code CHEVROLET P0451 Saving R...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 it. Before you load the parts cannon hav...This code is almost always caused by a bad heated oxygen sensor or wiring issue and is almost always symptom-free. P0036 should NOT be considered a breakdown risk if it appears by itself. Your Silverado's engine relies heavily on the upstream sensor for engine tuning. B1S2 is downstream of the catalytic converter and primarily checks exhaust ...1998 Chevy C1500 5.7. Pulling a P0446 code. I have tested purge solenoid and it is allowing vacuum to evap canister at acceleration. Line to tank I can't suck from or blow back to tank. No wires connected to valve on side of evap canister and it appears to allow vacuum from solenoid to go to atmosphere continuously.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). Under precise operating conditions—dictated by engine temperature, speed, and load—the EVAP system stores ...In conclusion, the P0442 code in a Chevy Silverado indicates a problem with the evaporative emission control system (EVAP). It is designed to capture and store fuel vapors from the fuel tank. It further prevents them from escaping into the atmosphere. A P0442 code is typically caused by a leak in the system.Jul 17, 2008 · I keep getting a P0446 code on my truck and have been reding on the net and found this true. 04-06-0055) for code P0446 on 2000-03 Cadillac, Chevrolet and GMC full size utility trucks. </P> The charcoal canister stores gasoline vapors from the tank. When certain driving conditions are met, the computer supplies power to the purge and vent ...ok. it seems it is running lean,,,this may be from a bad fuel pump,,or a bad fuel presure regulator,,to answer your question,..the p0446 code could come on if you have left the fuel cap loose before. p0171 sytem too lean bank one. p0174 system too lean bank 2. p0446 evap leak.Solenoid vent evap location valve g6 pontiac canister chevy silverado 2006 2003 replace 2007 tahoe system 2008 control 2009 circuit Solenoid valve purge code silverado chevy po446 vent evap canister 2003 evaporative replacement emission egr gm 2010 ask question own Q&a: egr valve replacement for 2003 chevy silveradoLabor: 1.0. To diagnose the P0446 Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.Sep 2, 2019 · P0446 is triggered when the ECM has detected improper resistance in the circuitry to activate the vent control valve. Check the Ground and power wires to the vent valve. P0446 can also trigger when the EVAP tank pressure sensor shows that it failed to maintain the vacuum during the active EVAP leakdown test.Jul 25, 2008 · This code refers to a problem with the evaporation system on your truck. GM has issued a technical bulletin on it for repairs. I will post a copy of it for you. Thanks. #02-06-04-037D: DTC P0446 (Restricted/Blocked Evap Vent Path) Set, Check Engine Light On (Replace Evaporative Emission (EVAP) Vent Valve Solenoid Assembly and Add/Relocate ...Screaming engines, roaring tires, a majestic Chevy Silverado ruling the roads. But amidst this symphony of power, a dreaded code p0446 looms like a dark cloud. This pesky EVAP emission control system malfunction demands our attention. Fear not, fellow Silverado enthusiasts, for we shall unravel the mysteries of p0446 and restore harmony to our trusted steeds. Stay tuned, for a balanced ...A prevalent issue with the Chevy Colorado is the P0446 code. This code corresponds to a specific number obtained when connecting your Colorado to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Table of Contents Definition Symptoms Causes Diagnosis How to Fix P0446 Definition P0446 is a standard OBDII trouble code,Hi 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 and check the data on the FTPS and its -1498 and when i remove the gas cap it only drops to -1496or7 and it has 4.4v. Hello, my name is***** and i will do my best to assist you.I am going over your story now and will reply ...Diagnostic trouble code (DTC) P018B stands for "Fuel Pressure Sensor 'B' Circuit Range/Performance.". If the engine control module detects that the voltage signal stays the same while the fuel pump is working, it will trigger the P018B code. The P018B code can be caused by a faulty fuel pressure sensor, circuit issues, or a PCM problem.How do you fix the po446 code on a 2001 Chevy silverado? ow do you find out where the parts are on a 2001 silverado for the emission control systemSubject: 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 …. 6 Answers. SOURCE: Code PO446 - Evaporative Emission System Vent. Th03 Silverado evap code 4.8 po446 - Answered by a verified Chevy Mecha Dec 8, 2020 · 2014 Chevrolet Silverado code p0446 Open the hood after turning off the engine and r We have several possibilities for this code other than the solenoid and the canister. P0446 Symptom Descriptor Evaporative Emission Control System Vent Control Circuit Malfunction. Probable Causes. 1-Evaporative Emission (EVAP) Vent System Components Restricted. 2-Fuel Tank Pressure (FTP) Sensor.I keep getting a P0446 code on my truck and have been reding on the net and found this true. 04-06-0055) for code P0446 on 2000-03 Cadillac, Chevrolet and GMC full size utility trucks. </P> The charcoal canister stores gasoline vapors from the tank. When certain driving conditions are met, the computer supplies power to the purge and vent ... Jul 16, 2020 · The fault code P0446 in the 2004 Chevy Silvera...
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