Diagnostic Tip for Malfunction Indicator Lamp (MIL) Illuminated – DTC P0442 and/or P0455 Set – 2000-2021 Buick Cadillac Chevrolet GMC

NHTSA ID Number: 10198890

Manufacturer Communication Number: 21NA124

 

Summary

This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

 

 


1024 Affected Products

Vehicles

MAKE MODEL YEAR
BUICK CASCADA 2016-2019
BUICK CENTURY 2000-2005
BUICK ENCLAVE 2008-2021
BUICK ENCORE 2013-2021
BUICK ENCORE GX 2020-2021
BUICK ENVISION 2016-2021
BUICK LACROSSE 2005-2019
BUICK LESABRE 2000-2006
BUICK LUCERNE 2006-2012
BUICK PARK AVENUE 2000-2005
BUICK RAINIER 2004-2007
BUICK REGAL 2000-2005, 2011-2020
BUICK RENDEZVOUS 2002-2007
BUICK RIVIERA 2000
BUICK TERRAZA 2005-2008
BUICK VERANO 2012-2017
CADILLAC ATS 2013-2019
CADILLAC CATERA 2000-2002
CADILLAC CT4 2020-2021
CADILLAC CT5 2020-2021
CADILLAC CT6 2016-2020
CADILLAC CTS 2003-2019
CADILLAC CTS-V 2014
CADILLAC DEVILLE 2000-2005
CADILLAC DTS 2006-2011
CADILLAC ELDORADO 2000-2002
CADILLAC ELR 2014-2017
CADILLAC ESCALADE 2000, 2002-2021
CADILLAC ESCALADE ESV 2003-2021
CADILLAC ESCALADE EXT 2007-2013
CADILLAC ESCALADE EXT 1500 2002-2006
CADILLAC SEVILLE 2000-2004
CADILLAC SRX 2004-2016
CADILLAC STS 2005-2011
CADILLAC XLR 2004-2009
CADILLAC XT4 2019-2021
CADILLAC XT5 2017-2021
CADILLAC XT6 2020-2021
CADILLAC XTS 2013-2019
CHEVROLET 3500 2016, 2018-2021
CHEVROLET 4500 2017
CHEVROLET 4500HD 2017-2021
CHEVROLET 5500HD 2017-2021
CHEVROLET ALERO EXPORT 2000-2002
CHEVROLET ASTRO 2000-2005
CHEVROLET AVALANCHE 2007-2013
CHEVROLET AVALANCHE 1500 2002-2006
CHEVROLET AVALANCHE 2500 2002-2006
CHEVROLET AVEO 2004-2006, 2009-2018
CHEVROLET B7 2001
CHEVROLET B7 MEDIUM DUTY 2000
CHEVROLET BLAZER 2000-2005, 2019-2021
CHEVROLET BOLT EV 2017-2021
CHEVROLET C SERIES 2003-2009
CHEVROLET CAMARO 2000-2002, 2010-2021
CHEVROLET CAPRICE 2003-2004, 2011-2017
CHEVROLET CAPTIVA 2008, 2012-2018
CHEVROLET CAPTIVA SPORT 2009-2012
CHEVROLET CAVALIER 2000-2005
CHEVROLET CHEVY VAN 2000
CHEVROLET CHEYENNE 2017
CHEVROLET CITY EXPRESS 2015-2017
CHEVROLET CLASSIC 2004-2006
CHEVROLET COBALT 2005-2010
CHEVROLET COLORADO 2004-2012, 2014-2021
CHEVROLET CONVENTIONAL 2001, 2003
CHEVROLET CORVETTE 2000-2021
CHEVROLET CRUZE 2011-2019
CHEVROLET EPICA 2005
CHEVROLET EQUINOX 2005-2021
CHEVROLET EXPRESS 2000-2021
CHEVROLET F SERIES 2005-2006
CHEVROLET G SERIES 2000
CHEVROLET G VAN BUS 2001-2002, 2004-2006
CHEVROLET H SERIES 2001
CHEVROLET HHR 2006-2011
CHEVROLET IMPALA 2000-2020
CHEVROLET L SERIES 2001-2002
CHEVROLET LOW CAB FORWARD 6500 2018
CHEVROLET LUMINA 2000-2002
CHEVROLET M SERIES 2000-2002
CHEVROLET M VAN 2001
CHEVROLET MALIBU 2000-2021
CHEVROLET METRO 2000-2001
CHEVROLET MONTE CARLO 2000-2007
CHEVROLET N300 2014-2016, 2018
CHEVROLET N300 MAX 2017
CHEVROLET OPTRA 2004-2007
CHEVROLET ORLANDO 2017
CHEVROLET P SERIES 2000-2001
CHEVROLET PRIZM 2000-2002
CHEVROLET S10 2000-2004, 2016-2018
CHEVROLET SILVERADO 1500 2006-2014, 2017-2021
CHEVROLET SILVERADO 1500 HD 2002-2005
CHEVROLET SILVERADO 2500 2005-2021
CHEVROLET SILVERADO 2500 HD 2000-2004
CHEVROLET SILVERADO 3500 2017
CHEVROLET SILVERADO 3500 HD 2000-2001
CHEVROLET SILVERADO 4500HD 2019-2021
CHEVROLET SONIC 2012-2020
CHEVROLET SPARK 2013-2021
CHEVROLET SPARK EV 2014-2017
CHEVROLET SS 2014-2017
CHEVROLET SSR 2003-2006
CHEVROLET SUBURBAN 2000-2021
CHEVROLET T SERIES 2003-2010
CHEVROLET TAHOE 2000-2021
CHEVROLET TRACKER 2000-2004
CHEVROLET TRAILBLAZER 2002-2009, 2017-2021
CHEVROLET TRANS SPORT 2000-2001
CHEVROLET TRAVERSE 2009-2021
CHEVROLET TRAX 2013-2021
CHEVROLET UPLANDER 2005-2009
CHEVROLET V SERIES 2000
CHEVROLET VENTURE 2000-2005
CHEVROLET VOLT 2011-2019
CHEVROLET W SERIES 2000
CHEVROLET W-SERIES 2000-2010
GMC ACADIA 2007-2021
GMC C SERIES 2004-2009
GMC CANYON 2004-2012, 2015-2021
GMC ENVOY 2000-2009
GMC ENVOY XL 2006
GMC ENVOY XUV 2004-2005
GMC G SERIES 2000, 2003
GMC G VAN BUS 2000, 2010
GMC GM 2001-2002
GMC JIMMY 2000-2004
GMC JIMMY CLASSIC 2005
GMC M/L VAN 2000-2001
GMC SAFARI 2000-2005
GMC SAFARI (GMC) 2000
GMC SAVANA 2000-2021
GMC SIERRA 1500 2014, 2019-2021
GMC SIERRA 2500 2007-2021
GMC SIERRA DENALI 2003, 2007-2013, 2015-2019
GMC SONOMA 2000-2004
GMC SUBURBAN 2000-2001
GMC TERRAIN 2010-2021
GMC TOPKICK 2003-2010
GMC W-SERIES 2004-2010
GMC YUKON 2000-2021
GMC YUKON DENALI 2000-2013
GMC YUKON DENALI XL 2004-2013
GMC YUKON XL 2000-2021

 


Condition

Some customers may comment that the MIL is illuminated.

Some technicians may find one or more of the DTCs set in the Engine Control Module (ECM):

  • P0442: Evaporative Emission System Small Leak Detected
  • P0455: Evaporative Emission System Large Leak Detected

 

Information

Refer to the Service Procedure below for some diagnostic tips that may help locate the source of the leak or cause of the concern.

 


 

 


1 Associated Document

Manufacturer Communications

Bulletin No.: 21-NA-124
Date: May, 2021

https://www.nhtsa.gov/recalls?nhtsaId=10198890

MC-10198890-9999.pdf 501.788KB

MC-10198890-9999

 


 

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AutoLine Pro Automotive Smoke Machine Leak Detector EVAP Vacuum Diagnostic Tester | Shop Series | Made in The USA
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  • 【 DIAGNOSE ALL TYPES OF LEAKS WITH ADAPTERS】Consistently smoke test EVAP systems, Vacuum leaks, low pressure Turbo leaks, Intake Manifolds, Cooling / EGR / Exhaust Systems, worn rubber, gaskets, seals, connectors, and more! The tapered smoke injection nozzle fits into virtually all hoses and lines.
  • 【 PRECISE AND SAFE】Engineered 100% safe for all vehicles. Thick Smoke output detects even the smallest leaks. Every unit Is backed by 1 YEAR FULL COVERAGE WARRANTY! AS AN AMERICAN FAMILY BUSINESS, we stand proudly behind our products. If you have any issues, don't hesitate to contact us directly.
  • 【 HOW DOES IT WORK?】(1) Fill with the included OEM Approved Smoke Fluid. The kit operates with the included OEM Approved Fluid or you may use your own USP Mineral Oil / Baby Oil. (2) Fasten the Power Cable (3) Connect your Air Supply. ANY SIZE and ANY TYPE OF AIR COMPRESSOR WILL WORK. (4) Check for LEAKS with Smoke Detection Technology.
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AutoLine Pro Automotive Smoke Machine Leak Detector EVAP Vacuum Diagnostics Tester | Economy Series | Made in The USA
  • 【 HIGH PERFORMANCE】Made in the USA. The Economy Series version 2.0 outputs lots of smoke! It's compact, powerful, and all quality components have been UPGRADED+ in version 2.0. All units come with our brand new ALP HIGH YIELD Ceramic Smoke System guaranteed to produce more smoke than all competition and last forever (smoke coil has our lifetime warranty).
  • 【 DIAGNOSE ALL TYPES OF LEAKS】Consistently smoke test EVAP / Vacuum / exhaust / and more at a fraction of the cost.
  • 【 PRECISE AND SAFE】Engineered 100% safe for all vehicles. Thick Smoke output detects even the smallest leaks. Every unit Is backed by 1 YEAR FULL COVERAGE WARRANTY! AS AN AMERICAN FAMILY BUSINESS, we stand proudly behind our products. If you have any issues, don't hesitate to contact us directly.
  • 【 HOW DOES IT WORK?】(1) Fill with the included OEM Approved Smoke Fluid. The kit operates with the included OEM Approved Fluid or you may use your own USP Mineral Oil / Baby Oil. (2) Fasten the Power Cable (3) Connect your Air Supply. ANY SIZE and ANY TYPE OF AIR COMPRESSOR WILL WORK. (4) Check for LEAKS with Smoke Detection Technology.
  • 【 FAST, FREE, & SAFE DELIVERY】ALL orders shipped out same day via Expedited Priority Shipping! (for same day, order before 12pm PST / 3pm EST) Delivered to your door in just 1~3 business days! [BUYERS WHO ARE HAVING TROUBLE PURCHASING, PLEASE MESSAGE US DIRECTLY]
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MR CARTOOL T130 Automotive EVAP Smoke Machine, Dual Mode 12V Car Fuel Pipe System Leak Tester Detector with Oil Level and Adjustable Flowmeter for All Vehicles
  • 【Smoke Machine T130】MR CARTOOL EVAP Leak Detector T130 is a professional machine for automotive pipe system leak detection. Can be used for EVAP System, Car Sealing, Intake System, Exhaust System, Crankshaft System, Fuel Tank System, Turbo Leaks and Various Pipe Fittings. NOTE: Not suitable for air conditioning system piping.
  • 【Air Mode & Smoke Mode】Built-in air pump and smoke generator, so it does not rely on additional air machine, perfect for Mobile Automotive Repair! The smoke can be produced within 10 seconds, dramatically reducing diagnostic time. Smoke output value: 6L/min.
  • 【Flowmeter, Oil Level Meter & Pressure Gauge】Equipped with pressure gauge, oil level meter and adjustable flow meter. All data are clear at a glance, which helps you better control the smoke effect. Built-in overheat protection, if it exceeds 176°F, it will automatically turn off the power.
  • 【Complete Set】Comes with 4.92ft Smoke Hose, EVAP Special Connector, Standard Cone Adapter, Power Cord Clamp, Valve Core Wrench, Airbag Adaptor, Rubber Connector Part, 3.38oz Empty Bottle for test oil(Please notice: Package does not includes the baby oil), Various of Soft Rubber and Hard Rubber Hose Plugs.
  • 【Worry-Free After-Sales】MR CARTOOL offers 24-month warranty and 7x24 hours friendly customer service to ensure your shopping experience. No need to pay extra for warranty service, saving you a lot of money! If you have any issues about the EVAP Leak Tester, don't hesitate to contact us directly.
SaleBestseller No. 4
Automotive Smoke Machine Leak Detector, VXSCAN EVAP Vacuum Leakage Tester, Fuel Pipe Diagnostic Tester with Flow Meter & Pressure Gauge for All 12V Vehicles
  • EVAP SMOKE MACHINE】VXSCAN V3 is a professional vacuum machine for car fuel pipe system leak detection. Supports EVAP system test, tightness test, intake system test, exhaust system test and various pipe fittings test. V3 smoke leak detector will help you solve the problem, saving time and money.
  • 【EASY TO USE】By heating USP mineral oil or baby oil, the automotive smoke machine can be outputs lots of smoke within 30 seconds, to improve diagnosis efficiency. This evap smoke machine built-in air pump, you don't need to purchase extra. V3 help you control the smoke effect easily and allowing you to estimate the size of the leak by the change of the gauge value.
  • 【SMOKE FLOW METER & PRESSURE GAUGE】Equipped with pressure gauge and adjustable flow meter which helps you control the smoke effect easily. When the pressure gauge runs to the maximum, the flow meter drops to 0, indicating that your pipeline is not leaking. On the contrary, it means there is smoke leakage.
  • 【Air Mode & Smoke Mode】The V3 smoke leak tester adopts an independent switch control design, the air mode independently controls the built-in air pump, the smoke mode independently controls the smoke generator. With intelligent protection, if the working limit is exceeded, the power will be automatically turned off to ensure the safety of the operator and equipment.
  • 【WIDELY COMPATIBILITY】Our package includes all accessories (Oil not included), it supports detect the leaks of multi pipe systems on cars, motorcycles, snowmobiles, off-road vehicles, ATVs, light trucks and speedboats boats. The fuel pipeline leak diagnostic machine is suitable for all brands and models of cars.
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ANCEL S3000 Smoke Machine Automotive, EVAP Smoke Machine Diagnostic Leak Tester, Dual-Mode Vacuum Fuel Pipe Leak Detector with Pressure Gauge&Adjustable Air Flowmeter for All Car/Motorcycle/Truck/Boat
  • 【🎁Extra Savings】Just click "Extra Saving" below the price and add both to your cart to receive a free RD100 car code reader worth $20.99, or a free TP300 GM Tire Sensor TPMS Relearn Tool with the purchase of 1 or more S3000 automotive smoke machine leak detector.
  • 💨【Safe for All Vehicles】ANCEL S3000 automotive smoke machine leak detector is made of thick solid metal, compact and durable. It heats up the baby oil or mineral oil to produce smoke vapor, this vapor doesn't have any toxic particles which could cause harm to your body. S3000 car smoke machine has an intelligent protector, if working temperature exceeds the limit, it will automatically turn off the power to secure the safety of both the operator and device. It's entirely safe for all vehicles.
  • 💨【Ideal for Checking All Types of Leaks】💨 ANCEL S3000 evap smoke machine comes with various auto smoke machine cone adapter, which can fit in almost all lines and hoses and an detect even the smallest leaks. You can test connectors, seals, gaskets, worn rubber, exhaust or cooling systems, intake manifolds, low-pressure Turbo leaks, vacuum leaks, and EVAP systems. Therefore, It's perfect for checking all types of leaks.
  • 💨【Easy-to-use Automotive Smoke Machine】💨 The operation to test for leaks is almost straightforward. after putting the desired EVAP smoke machine fluid, fasten the power cable and connect the air supply to check the leaks. ANCEL S3000 has a hanging on vehicle hoods. ANCEL S3000 automotive smoke machine features a flow meter,which is easy to read, enabling you to estimate the size of a leak.
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Smoke Machine Automotive, ANCEL S100 EVAP Smoke Machine Leak Tester with Service Port Adapter, 12V Small Car Vacuum Smoke Tester Diagnostic Test Tool for All Vehicle Motorcycle/Car/Truck
  • FIND ALL TYPES OF LEAKS: When your car's vacuum hose ruptures causing black smoke from the exhaust and a significant increase in fuel consumption; Leaking vacuum hoses causing the engine to run weakly; Blockage can cause idle drift. Don't worry, the S100 Smoke Leak Detector can do smoke test of EVAP systems, vacuum leaks, low pressure turbo leaks, intake manifolds, cooling/EGR/exhaust systems. and solve these troubles quickly!
  • POWERFUL ADJUSTABLE SMOKE: Equipped with ANCEL's latest smoke generator and 1/2PSI high pressure unit, which ensures continuous output of a large amount of smoke. The adjustment screw on the side is a flow meter that controls the amount of smoke, ensuring that the output of the smoke can detect even the smallest leaks and helps you diagnose faults quickly and accurately. Significantly improves the efficiency of diagnosis.
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Bestseller No. 7
AUTOOL Automotive Smoke Leak Detector Evap Car Pipe Leakage Tester Fuel Leak Locator Universal for Motorcycle/Car/Truck
  • 【Why Need It】For example: 1. The rupture of the vacuum hose will cause the mixture to be too thick, the idle speed will increase, the hot car will not start well, the engine will surge during acceleration, the fuel consumption will increase significantly, and the exhaust pipe will emit black smoke. 2. Blocking will cause the idle speed to drift, and the idle speed is easy to stall. 3. Air leakage in the vacuum tube will cause the engine to run weakly
  • 【Wide Testing Range】The smoke leak detector can do smoke testing of multiple systems, such as EVAP systems, Intake Systems, Cooling / EGR /Exhaust Systems, Crankcase Systems, Engine Airtightness, Vacuum Leaks, Low Pressure Turbo leaks.Applicable cars, motorcycles, snowmobiles, off-road vehicles, ATVs, light trucks and speedboats boats.
  • 【Built-in Air Pump】Customers do not need to purchase additional air pumps, we use high-quality materials, after many tests, please rest assured to use. You can save more time and money
  • EVAP Detection】American cars that began production in 1996 are equipped with EVAP service ports; in most American cars, the EVAP service port is usually located in the engine compartment, but the EVAP service port of some special models may be located in other locations. Open the plastic cover of the EVAP service port, then use the spool wrench to remove the check valve clockwise, then install the EVAP service port adapter, and introduce smoke from the port into the EVAP leak detection system.
  • 【Stable and efficient】Fill the car pipes with smoke, wait for about 2 minutes, and use inspection lights to assist in lighting, and start to check the system leakage fault points, which is very efficient.
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OURANTOOLS Automotive EVAP Machine Leak Detector, DC12V Auto Fuel Pipe Leak Tester for Car/Motorcycle/Truck
  • EASY TO USE: The Smoke Machine Automotive with easy-use function and portable design, can help mechanic produce lots of smoke within 30s to detect the leaks in pipe system (by heating up baby oil). Dramatically reducing diagnostic time.
  • 3 MAIN FUNCTIONS: Air-tightness Check, Evaporating Fuel Leakage Check, and Over-heat & Anti-frost protection. If it exceeds the working limit (Over 167°F) it will power off automatically. The evap smoke machine has its own air pump. It does not rely on other air machine and connect the detector with DC12V battery.
  • SUPPORTED VARIOUS SYSTEM TEST : Included EVAP System Test, Intake System Test, Exhaust System Test, Fuel Tank System Test and Car Sealing Test. (Note: Not applicable to air conditioning system piping) It can quick to find evap leaks.
  • WIDE COMPATIBILITY: Used to detect leakage of pipe systems on automobiles, motorcycles, snowmobiles, ATVs, ATVs, light trucks, and speedboats. The fuel line leak diagnosis machine is suitable for all makes and models of cars.
  • MAIN UNIT 3 YEARS WARRANTY: To ensure your high-quality shopping experience, there are 3 years’ warranty of the main unit from the date of the customer received the product and 1year warranty for accessories. (longer than competing machines). 24 hours E-mail supports can help to resolve any issues of using. Thank you for your support of BELEY DIRECT.
Bestseller No. 9
Eisen tools ET009 evap Smoke Machine Car Fuel Leak Detectrs, Diagnostic, Automotive Fuel Pipe System Leak Tester with EVAP System for All Cars, Motorcycles, Snowmobiles, ATV, Light Trucks, Boats
  • 【Easy to Use】: This smoke machine automotive can be powered by a car battery and powered by Shop Air, increasing durability and ensuring high smoke flow. And can quickly generate smoke.
  • 【Convenient Tool for Mechanics】: Fuel Leak Detector designed for detecting the leakage of pipe systems on cars, motorcycles, snowmobiles, ATV, light trucks, boats
  • 【Great Smoke Flow Control】: Turn the red handle anti-clockwise to adjust the flow rate to a proper level.
  • 【Application】: EVAP System, Gaskets & Fitting, Throttles Shafts, Catalytic Converters, Disphragms & Seats. Head & tail lamp housing, EGR valves, Hoses, Brake Booster, Central Locking System, Door & Windows seals, Oil Leaks and more! If you have any issues, don't hesitate to contact us directly.
  • 【Specifications Voltage】: DC 12V. Smoke output pressure:0.5PSI. Smoke output volume: <8LPM. Smoke current: 6 AMP
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ANCEL S3000 Automotive EVAP Smoke Machine Leak Detector with Oil Level Gauge & Air Flowmeter, 12V Car Pipe Leakage Tester for Vehicle Motorcycle Boat Truck
  • 【Ideal EVAP Smoke Machine】ANCEL S3000 automotive smoke machine is a professional machine for automotive pipe system leak detection, will help you find the leak and decide over 99% of generic smoke leakage problems. Supports various systems smoke testing, such as EVAP system, intake system, various pipe fittings, exhaust system and so on. Get the S3000 smoke tester and solve the problem yourself to save time and money.
  • 【Pressure Gauge + Adjustable Flow Meter】S3000 smoke leak detector equipped with pressure gauge and adjustable flow meter, which helps you control the smoke effect easily and allowing you to estimate the size of the leak by the change of the gauge value. Throuth heating mineral oil or baby oil into smoke, and then pressing it into the sealed pipeline system, it can be outputs lots of smoke within 30 seconds, improve the efficiency of diagnosis.
  • 【Independent Switch + Intelligent Protection】S3000 vacuum leak smoke machine adopt independent switch control design, air mode switch independent controlled built-air pump, and smoke mode switch independent controlled smoke generator. Built-in intelligent protection device, if it exceeds the working limit, will automatically turn off the power to ensure the safety of the operator and the equipment.
  • 【Complete Accessories】The package includes all accessories, such as an Intake Adapter, an Intake Bladder Replacement Skin, a Cone Adapter, etc, which is worth more than $70 and can help you save time and money. In addition, the S3000 evap smoke machine equips an air pump and smoke generator, no need to purchase additional air machines, you only need to purchase an additional USP mineral oil/baby oil.
  • 【No Damage to Your Car】Many users may be worried that the device will cause damage to the car itself during the smoke test, such as draining the battery or causing damage to the car's systems. But please don't worry, we have considered it when designing this smoke tester. It can generate smoke quickly and complete the test in a few minutes without wasting any parts, reduce the troubleshooting duration for vacuum leaks and other problems.

Last update on 2023-01-09 / Affiliate links / Images from Amazon Product Advertising API

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