P0455 Code Chevy Trailblazer P0455 Code Chevy TrailblazerThis trouble code references a number that is given to you when you plug your Trailblazer into a OBDII scanner. P0455 CHEVROLET Meaning This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. 26K subscribers the truck couldn't pass emission due to a code p0455, customer replaced gas cap but it came back on,, vent solenoid or a broken line could be the problem. OBD II fault code P0455 is a generic code that is defined as “Evaporative Emission System Leak Detected (large leak), and is most …. The problem I am having when trying to hook to the green port is where exactly can I attach my 1/4 vinyl hose. " Now this a very common problem and is often 0 hour of labor Chevrolet HHR Engine Exhaust System Problems Fuse Box Diagram Chevrolet HHR (2006-2011) 2008 Chevrolet Hhr Engine Diagram Html Html Reviving an old thread, but I had the p0455 code and did what IceJeep did and found that same hose cracked Learn more about the 2005 Chevrolet. Hi Guys, I'm getting a P0455 Check engine light code Learn more about the 2005 Chevrolet Trailblazer. How to Fix P0455 Engine Code in 3 Minutes [2 DIY Methods / Only $4. Purge tube to purge valve (at intake manifold) 2. 2004 Chevy Trailblazer Code: P0455 Just got this code on my code reader and was wondering if you could help me through - Answered by a verified Chevy Mechanic. Buy 2003 Chevrolet Trailblazer Vapor Canister Purge Valve Online. I just bought an 04 Trailblazer with a 4. and for the Later Model Trailblazers-Envoys with the different piping and Venting set ups: . Just a quick video on replacing my Evap canister vent valve on my 2005 Trailblazer. Chevy Trailblazer P0455: Diagnose „Großes Leck im EVAP. 05 chevy trailblazer engine light is on with a trouble code of P0455 ( evap emission control system leak large). 2006 Chevy Trailblazer code P0171 lean bank 1 A. Chevy Trailblazer P0496 Causes. Start by tightening the gas cap and clearing the code. A customer rolls in with a check engine light. Gas cap light comes on and pending code P0455. Start at the engine and the vacuum purge valve, start checking the vacuum hoses and lines . What causes a P0455 code? These are not very size-able leaks, even though the language suggests otherwise. OBD II fault code P0455 is a generic code that is defined as “Evaporative Emission System Leak Detected (large leak), and is most commonly set when the PCM (Powertrain Control Module) detects a large leak in the evaporative emissions control system. At FIXD, our mission is to make car ownership as simple, easy, and affordable as possible. How do you fix p0495 code on 04 trailblazer. Computer codes C0455 and c0244. P0440 is the general code for a problem with the Fuel Evaporative Emission System. Specifically, P0452 code means that the pressure in the ECM is unusually low. A forum for all things Trailblazer SS. Discussion Starter · #1 · Jan 30, 2012. 2022: 2004 Chevy Trailblazer EXT, 4WD 2006 Code P0449 EVAP Vent Solenoid Looking for a picture of the vent valve to 2006 Code P0449 EVAP Vent Solenoid Looking for a picture of the vent valve to. It means a large leak has been …. Find out how to fix it on your Chevy! Get FIXD for $19. We also did the smoke test and found no leaks. The P0455 code specifically indicates a large leak in the system, not a fuel leak, but one in the vapor recovery system. P0455 Code: Large EVAP Leak (Causes and …. Remove the fuel cap and inspect it. There’s a tool to check the fit right there. the vent solenoid needs to be checked as it is common. Once turned a VW Jetta into a pickup truck. What should i be looking for when code p0455 comes up- evaporative emission control (EVAP) system leak detected (gross leak). The EVAP system captures all fuel vapor from the fuel tank and sends them to the engines intake in order to be ignited in the normal combustion process. 2007 TBSS - Imperial Blue AWD 3SS - SLP dual exhaust 1986 Monte Carlo SS - 383 CCC Q-Jet 1987 Monte Carlo LS - 350 TPI 1981 Pontiac Grand LeMans Wagon - future LS swap candidate. BLESS2SUCCESS MEMBER; 2004 CHEVROLET TRAILBLAZER; 4. If there is a large leak, it'll throw P0455. by flag74 » Mon Aug 10, 2015 8:44 pm. The cost to diagnose the C0455 CHEVROLET code is 1. We've scanned millions of cars so we know at what mileage these common problems usually show up. A P0496 code implies that there's an unacceptable amount of intake vacuum flow into the evaporative emissions system. Chevy Trailblazer P0455: EVAP System Large Leak. Diagnostic trouble code (DTC) P0455 stands for “Evaporative Emission Control System (EVAP) Large Leak Detected”. P0455: LOW - Continued driving for a short period of time is okay: There is a large leak in the EVAP system: When To Expect These Codes With Your Chevrolet Trailblazer. 2000-2014 Silverado & Sierra HD. Browse Categories SOURCE: idle problem on a 2006 chevy trailblazer 4. Other EVAP DTCs: P0440 - P0441 - P0442 - P0443 - P0444 - P0445 - P0446 - P0447 - P0448 - P0449 - P0453 - P0455 - P0456. Diagnose Battery Drain Parasitic Draw Chevy Trailblazer. chevy trailblazer 2007 p0106, p0455, p0506, p0068 codes pp0106, p0455, p0506, p0068 - Chevrolet 2007 Trailblazer question. 61] 268,945 views Oct 21, 2020 ============================= Claim your FREE engine code eraser more Dislike Share nonda 37. When the valve fails, it generally fails open. SOLVED: 04 trailblazer cel has a p0455 code what could be. One of the most common trouble codes with the Chevy Blazer is the P0455 code. 04 trailblazer cel has a p0455 code what could be the problem ,it has a new gas cap A large or gross leak in the EVAP System is not always a gas cap. When the pressure in the system is too low, P0452 is generated. 2007 TBSS - Imperial Blue AWD 3SS - SLP dual exhaust Chevy Trailblazer SS Forum. P0455 Code - Meaning, Causes, Symptoms …. The factory states that there are seven critical connections that could. The auto repair's diagnosis time and labor rates vary by location, …. The cost of diagnosing the C0455 code is 1. It means that your Trailblazer's EVAP system has detected low fuel tank pressure. 2 L with 90,000 miles on it so it's out of warranty. there is a bulletin for these and the vent valve is installed in another spot. TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. So I checked the gas cap thinking it was loose or cracked when I noticed inside the fuel receptical the "spring loaded flap" at the top was missing. P0452 indicates that your Trailblazer’s fuel tank pressure sensor has detected that the pressure in the fuel tank is too low. P0455 CHEVROLET code tech notes The P0455 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). Code 411 is a secondary air pump code. It runs fine and I drove it almost 1000 miles home with no problems but the SES light came on steady while driving home in the rain. - Chevrolet 2005 TrailBlazer question. Another common cause is a faulty / sticking EVAP vent solenoid. The dash will say "Fuel Cap" and I'll get a P0455 code on my scan tool. control system vent valve solenoid is located on the rear Dorman Products - 911-061 asha …. 26K subscribers the truck couldn't pass emission due to a code p0455, customer replaced gas cap but it came back on,, …. Its going to be in a hose or other part of the fuel evap system. Conditions for Clearing the MIL/ DTC DTC P0455 is a Type B DTC. Or if the truck was running when you were filling it with …. While an EVAP system isn’t required to start an engine, it’s an essential protective system. The code indicates an issue with the Throttle Actuator control. 2007 Sequoia Evap Canister located above spare tire at rear of vehicle. Fuel Vapor Hose – A leak in the fuel vapor hose that leads from the fuel tank to the intake will definitely throw P0442 in your Trailblazer. It means a very small leak has been detected. Chevrolet check engine light code P0420 means Catalyst system efficiency below threshold (Bank 1). Evap leak P0455 Help me!!!!. P0449 Chevrolet; P0449 The P0455 it's a very common code because the code is set if the gas cap is loose or missing. Möglicherweise bemerken Sie auch den geringsten. The P0455 indicates you have a gross vacuum leak in the EVAP system. OBD-II code P0455 is a problem with an Evaporative Emission Control System Leak. 2002-2009 Chevy TrailBlazer, GMC Envoy, Saab 9-7X Fuse Box Diagram 05 2006 Chevy Trailblazer Code P0455 Coupons, Promo Codes 12-2020 2004-2013 Silverado 1500 4 LLC 5100 S 2011 CTS Coupe, F3, Auto 2011 CTS Coupe, F3, Auto. So, what does the code P0455 mean? A …. The Chevrolet TrailBlazer is a mid-size five-door SUV. The P0455 code is a Diagnostic Trouble Code (DTC) that signifies there’s a serious leak in your car’s EVAP system. There is a factory service bulletin for all the models from 2000 through 2021. P0452 CHEVROLET: Code Meaning, Causes, Symptoms, & Tech Notes. For instance, Buick's sensor produces about 0. I checked the gas cap and tightened in up, but light is still on. That control motor may be bad and thus, causing a low idle. Any other part number will only be replacing the bad part with another potential bad part. P0455 - Evaporative Emission Control System Leak Detected (no purge flow or large leak) This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. Be sure to only use the new , modified part - number 15293048. The tank will need to be lowered to get to it. The Trailblazer will typically be warning you to tighten the fuel cap. Alright so im pretty pissed my dyno tune date is set for feb …. Fuel vapors are routed by hoses to a charcoal canister for storage. Most auto repair shops charge between $75 and $150 per hour. Chevrolet check engine light code P0300 means Random/Multiple cylinder misfire detected. Diagnosis: The most common cause of. Though this trouble code doesn't cause any major problems. 2006 Chevy Trailblazer Code P0455 Coupons, Promo Codes 12-2020. it was actually the quick connector but we. Gas Cap Bad – A bad fuel cap can cause the P0442 code to be thrown for sure. In most cases, the code can be clear by disconnecting the car battery for about 30 minutes. P0455 Jeep Code: EVAP Large Leak (Symptoms & Fix). Diagnostic Aids•A loose, missing, incorrect, or damaged fuel fill …. What Does Code P0455 Mean? P0455 definition: System Gross Leak Evaporative System Malfunction; Issue Severity: LOW– Continued …. For instance, confirmed fixes for the P0155 code in a Ford, specifically a 2005 Ford F-150 XL 5. The location of this pressure detector varies depending on the model of your car. Rates usually depend on how many other …. the vent solenoid i would replace because they go bad and will not work because they are under the vehicle in the rear of the truck. Once you start your engine, a purge valve opens and an intake vacuum siphons the vapors into your engine to be burned. We use cookies to give you the best possible experience on our website. This code is classified as an emission system malfunction. the tests need to be done with a scan tool but the most common failure is the pump and check valve. codes are P0106,P0107,P0108,P0122,P1478, P1598 Chevrolet Trailblazer As mentioned in the previous section, there are a couple of reasons why the P0452 code appears when running baro stays at 12 3L (8th Vin Digit P) Fuel Injector 8 Piece Set: 2003-2004: GMC: Envoy XL: GMC Envoy XL V8 5 3L (8th Vin Digit P) Fuel Injector 8 Piece Set: 2003-2004: GMC:. Fullsize Truck & SUV - 1999-2006 GMT800 & 2007-2013 GMT900 Platforms. A forum for all things Trailblazer SS including mileage, horsepower, transmissions, interior mods, tires and more! Full Forum Listing. It often appears with, or is related other codes, such as P0420, P0441, and very often P0440. I'm getting a P0455 P on my scanner. The other major cause of code P0455 on Chevrolet applications is the fact that liquid fuel enters the charcoal canister when the fuel tank is …. I checked the gas cap (it was tight). I recently got the p0455 code on the Trailblazer 4. OBD2 Code P0455 Chevrolet definition: This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. So, what does the code P0455 mean? A sensor has noted a large leak somewhere in the system so that a vacuum cannot be created. The cost to diagnose the P0455 code is 1. Chevrolet Trailblazer & P0455 code. I've done searching on the topic, just thought I'd see for those who had this code/issue, what actually fixed it. I replaced the purge solenoid, the vent valve, the charcoal canister, and the gas cap. The Chevy Blazer drive cycle above will "complete" or make "ready" your SUV's emission monitors, including the EVAP monitor. Der P0455-Code wird normalerweise nicht von anderen auffälligen Symptomen als den begleitet Gasgeruch und das Maschine bald warten hell. This is the quick and easy way to clear the P0449 and p0455 codes on a Chevy Silverado. In fact, the leak can be from a hole as small as 0. The cost to diagnose the P1515 CHEVROLET code is 1. This is unrelated to the water pump problem and it's a well know problem in 2003-2008 Trailblazers. i am wondering if you could tell us what the following codes mean u1300 class 2 communication circuit high. Others may have specific fixes to these codes. 67 ; elt f 174 &nbs p; stft b1% -3. P0455 EVAP CANISTER VENT VALVE 2005 TRAILBLAZER. A loose fuel tank filler cap is the most common cause that will trigger the P0455 code. P0455 CHEVROLET: Code Meaning, Causes…. This trouble code references a number that is given to you when you plug your Tahoe into a OBDII scanner. Look up the other OBD II Trouble Codes, please use the search box. I saw a video on youtube call "P0442/P0455 evap purge solenoid code 2005 trailblazer Pt2" where that guy plug the smoke machine, but mine is different because is the extended version and it doesn't have the same hoses on the back next to the spare tire and fuel tank Chevy Mechanic: AMEDEE Sorry I just sent over a reply. 2005 chevy trailblazer : code 440 reads: fuel sys 1 cl 6 cyl 4. 4, include repairing the variable valve timing (VVT) solenoid wiring or the O2 sensor wiring. Chevrolet Trailblazer P0455 Engine Trouble Code. I have a p0455 Evap code and when filling the pump shuts off automatically after a few seconds. That ever so unpopular P0455 code. Engine Light ON (or Service Engine Soon Warning Light) C0455 CHEVROLET code description The Electronic Brake Control Module …. This trouble code references a number that is given to . The cost to diagnose the P0455 CHEVROLET code is 1 0 hour of labor Service manuals, electrical schematics and bulletins for 1995 to current GM vehicles Service manuals, electrical schematics and bulletins for 1995 to current GM vehicles. The gas cap was replaced in April with one from GM directly, part number 10372246. A major leak could affect more than one area, causing multiple trouble codes. Some other chevy mechanic said to just hook it up where I did in the picture and I figured that was wrong. I did a simple search for the code, and common issue with the vehicle, did simple check and it fixed this particular vehicle. I haven't taken it back to advance auto to have the code read again yet. these codes are for the evaporative emission system. Emissions Leak, Large on 2005 trailBlazer 4. First and only way to test is with smoke machine! It could be fuel tank, gas cap, fuel pump, evap purge valve, charcoal . 04 Trailblazer SES code P0410 secondary air intake malfunction help. A common cause for this is a loose or faulty gas cap. valve and hard to start after warm engine sitting for a few minutes. I was pulling a p0455 code, and after watching a few video's I seen that. Could this cause the P0455 problem and if so how difficult is this to repair. These are the 5 most common reasons for a check engine light in your Chevrolet Trailblazer. Chevy Trailblazer P0455 OBDII Code Symptoms 01-2002 acura MDX AWD fuel vapor evaporator charcoal canister evap vsv M941 The Chevy Blazer drive cycle above will "complete" or make "ready" your SUV's emission monitors, including the EVAP monitor, Oxygen Sensor monitor, and EGR monitor The 2007 Chevy TrailBlazer is a traditional body-on-frame SUV. P0455 Code: I Have a 2004 Chevy Blazer and I Got a Trouble Code. Chevrolet check engine light code P0456 means Evaporative emission control system leak (small). Toggle signature - 2008 Trailblazer LS 4x4 (84,xxx Miles)- 2002 Pontiac Sunfire (198,xxxMiles). P0495 "Cooling Fan High Speed' = the fan clutch has failed, time for a replacement. SOURCE: idle problem on a 2006 chevy trailblazer 4. As stated elsewhere, code P0455 can also indicate a condition in which no fuel vapors flow through the system. The computer will turn on the check engine …. Check engine light code P0496 means EVAP Flow During a Non-Purge Condition. 04 Trailblazer SES code P0410 secondary air intake malfunction help. The P0455 code means that the control module has detected a small leak in the …. Find out how to fix it in this article! P0455. The cost of diagnosing the C0455 CHEVROLET code is 1. Not factory/original brand) Other leak or damaged piece in EVAP system. From my experience in dealing with evap systems, that charcoal canister is screwed. Fault code P0455 indicates that a large (gross) leak within the evaporative emissions system has been detected and noted by a vehicle's . Research, compare and save listings, or contact sellers directly from 1 2007 Silverado 1500 models in Essex. Chevy Trailblazer P0456 OBDII Code Symptoms. During the summer, it threw a P0455 code. Chevy Trailblazer P0455- EVAP Large Leak. =====Claim your FREE engine code eraser …. The currently selected ODB-ii codes is for the Chevrolet makes. Chevrolet Codes; Trouble Code Fault Location Probable Cause; B1325: Control Module Power Circuit Low/High Voltage: P0455: Evaporative emission (EVAP) system -large leak detected: Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve ABSITCS trouble codes stored: U1064. The cost to diagnose the P0452 CHEVROLET code is 1. The factory states that there are seven critical connections that could likely lead to this DTC being set: 1. Chevy Blazer P0455 Code Diagnosis. PO-356and PO-506 please help me I've changed the plugs and coil packs and still the same codes 2007 Chevy trailblazer v6 / p1400 p0506 anti-skid light on my engine light is on intermittently and also the anti-skid light is on also intermitenly. Was throwung 18 codes replaces the passlock sensor. Canister Evap Trailblazer 2007 Chevy Location. A code p0455 most likely means one or more of the following has happened: A loose or improperly affixed gas cap. Some of the causes of this problem are: a faulty purge or vent solenoid, defective fuel pressure sensor, incorrect electrical connections and faulty vent solenoid. egr doesnt do anything to the evap system. Recovering autocross and track day enthusiast. 2L; V6; 4WD; AUTOMATIC; 144,000 …. 06 Chevy Impala P0011, P0121, P0449, P0455, P1516, P2101, P2143, and C0700 2007 chevy trailblazer six cylinder multiple codes P2101 P1682 etc Trailblazer will not come out of mil mode. I've replaced the purge valve/senloid, fuel. I replaced the purge solenoid, the vent valve, the charcoal canister, and the …. how can I fix these troubles :x. It means a large leak has been detected. The Code P00455 code is often associated with P0440 code. Possible Solutions With a p0455, the most common repair is to: Remove and reinstall the gas cap, clear the codes, and drive for a. OBD2 Code P0442 Chevrolet definition: This indicates a fuel vapor leak in the EVAP control system. I took the truck to Auto Zone and they let me borrow their engine code reader for free. In these cases on Chevrolet applications, the most common cause is a defective EVAP purge valve/solenoid that is stuck in the closed position, thus preventing engine vacuum from evacuating the EVAP system. 2004 SES Codes P0128, P0172, P0455, P0410, P0606. the p0455 is a large leak and the other is a small leak in the system. Code p0455 on chevy trailblazer. Trailblazer SS Joined Oct 5, 2010 456 Posts Discussion Starter · #1 · Jan 30, 2012 Alright so im pretty pissed my dyno tune date is set for feb 6th and im pulling the P0455 code. You scan a P0455, an engine code that indicates a large evaporative emissions (EVAP) leak. The cost to diagnose the P0017 CHEVROLET code is 1. I was pulling a p0455 code, and after watching a few . When there is a small leak in the Chevy Trailblazer's EVAP system, it will throw the P0456 OBDII Code. P0306 definition: Cylinder 6 misfire detected. It covers Chevy Trailblazer P0420 meaning, symptoms, causes, and possible solutions. The cost of diagnosing the P0480 CHEVROLET code is 1. Body control module (BCM), CAN data bus. The P0455 engine code stands for System Gross Leak Evaporative Emission, or Evaporative Emission Control System Large Leak …. I figured I was supposed to hook it to the green port. The garage checked out a few of the codes and said that all values and sensors were fine. Changed cannister purge valve, vent valve, has cap, fuel tank pressure sensor. 2l &nbs p; fuel sys 2 cl-fault & nbsp; calc load % 86. Repair Urgency: Get this code fixed as soon as possible to avoid further damage to your emission system and possible engine damage. The Chevy dealer said the check engine light is related to the emission control system and that I could keep driving the car. The factory states that there are seven critical connections that could likely lead to this DTC being set:. Browse Categories Answer Questions. Is Code P0455 Serious? How to Fix. Chevy Tahoe P0455: EVAP System Large Leak Detected Diagnosis. Code P0455 Chevy Cobalt Coupons, Promo Codes 01-2021. What are common diagnostic codes for check engine light? P0455: This code means that there is a leak in the emission control system. P0455 - Meaning, Causes, Symptoms, & Fixes …. Chevrolet Trailblazer P0455 OBD-II Diagnostic Powertrain (P) Trouble Code Information Page. The P0455 diagnostic trouble code appears when there's a leak in the Evaporative Emission Control (EVAP) system, and the system can't maintain pressure. it was probably the vent solenoid valve that fixed it. The P0455 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). Process is similar for all Silverados. A large leak diagnostic trouble code is related to, and could also cause, these additional trouble codes: P0440 ; P0441 ; P0442 ; P0444 ; P0445 ; And more ; Many of these EVAP trouble codes are from a series of sensors that measure different areas for air leaks. One of the most common trouble codes with the Chevy Tahoe is the P0455 code. A search for "P0455" will turn up dozens of Threads. Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions. Or if the truck was running when you were filling it with gas, this can also cause this code. I had the code checked and it came back as P0455. In the Trailblazer, OBDII P0420 is often caused by a bad …. Reason for Chevrolet Trailblazer P0455 and find the …. Chevy parts in-stock with same-day shipping Update: The service department at. " 2005 chevy trailblazer: fuel sys 1 cl 6 cyl 4. the truck couldn't pass emission due to a code p0455, customer replaced gas cap but it came back on,, vent solenoid or a broken line could . C0455 CHEVROLET: Code Meaning, Causes, Symptoms, …. DTC DescriptorDTC P0455 Evaporative Emission (EVAP) System Large Leak Detected Chevy Equinox, and Cadillac SRX owners. Have this code on my 03 chevy silverado 1500 5. P0455: System Gross Leak Evaporative Emission. Chevy Trailblazer P0455: EVAP System Large Leak Detected Diagnosis. Chevy Cobalt accessories from AutoAnything handle all of the performance and style your …. Canister Chevy 2007 Location Trailblazer Evap. P0455 Code: I Have a 2004 Chevy Blazer and I Got a Troubl…. NOTE: Note that on many applications, this code has a dual definition, in the sense that it can either indicate a large leak (as opposed to a small leak) in the EVAP system, or a fault, failure, defect, or malfunction in the EVAP system that is. This trouble code references a number that is given to …. Registered Joined May 4, 2009 2,460 Posts #2 · Jul 22, 2009 If you have checked/replaced the gas cap you need to look for a hole in the evap …. 1 volt with positive pressure in the tank and up to 5 volts with negative pressure, as in a vacuum. This is a little motor on the throttle body that opens the throttle. One of the most common trouble codes with the Chevy Trailblazer is the P0455 code. 2007 TBSS - Imperial Blue AWD 3SS - …. How to fix code P0455 Chevy trailblazer. The code relates to all vehicles, however they differ in the sensor output. Pay attention to the rubber ring that would snug to the fuel inlet. NEED HELP Nasty Intermittent P0455. If you have checked/replaced the gas cap you need to look for a hole in the evap system. The same solution may not apply to a Chevy Trailblazer or a Jeep Grand Cherokee that triggered the code. My air bag code on 2007 chevy cobalt is b0012 and b0013 Hi, Below are the detail on codes : Code b0012=> Driver frontal …. the truck couldn't pass emission due to a code p0455, customer replaced gas cap but it came back on,, vent solenoid or a broken line could be the problem. The P0455 OBD-II code means the engine computer has detected an Evaporative Emissions Control System (EVAP) Malfunction or to be precise a ' . Here are the most common problems that will throw the code. Truck is a 2005 Colorado Z71 4WD 5MT 2. EVAP Canister Purge Valve- The most common culprit with the P0442 trouble code and the Chevy. 2005 Chevrolet TrailBlazer Diagnostic Trouble Code (DTC) P0455 "EVAP LEAK MONITOR LARGE LEAK DETECTED". Chevy Colorado P0455 and P0449 codes and replacing vent valve selenoidPatrick Murphy Trucktown Chevrolet Videos Chevrolet Cruze …. There are many things that can cause the P0496 trouble code on the Chevrolet Trailblazer. P0455 is a fairly straight forward OBD-II trouble code, in that it tells us that the engine computer has detected a large leak in the engine . Chevy Trailblazer P0455 OBDII-Code-Symptome Das baldige Licht der Service-Engine ist oft das einzige Zeichen dafür, dass der P0455-Code ausgelöst wurde. Chevy Truck Hard To Fill Gas Tank - GM EVAP Codes P0442, P0446, P0455