The reduced engine power light indicates a problem that is reducing the air and/or fuel delivery in the engine. How To Test AC Clutch Relay: A Step-by-step Guide. TSBs address known issues by documenting a repair procedure that will (hopefully) fix the problem on certain makes and models. National Highway Traffic Safety Administration, circuit fault in the throttle control system. Before a warning light turns on, a battery problem will probably present with additional symptoms. In general, you can follow this cleaning procedure: This content is accurate and true to the best of the authors knowledge and is not meant to substitute for formal and individualized advice from a qualified professional. This particular one is from Lexus but other models work under the same general principles. But GM isnt the only automaker to equip its vehicles with a fail-safe modeall modern cars have some type of fail-safe strategy built into them. Known Problems Causing REP in Some Models. Both of these parts transmit the information as voltages. The TSB applies to 2011-2012 diesel-powered trucks and vans. Although turbos increase an engines efficiency, if something goes wrong, the engine will lose power. The engine power reduced message means your vehicle has reduced your engine's power in response to detecting a problem with your engine or a related component. So, what does engine power reduced Chevy Impala mean? Hello human, I am a GPT3 powered AI chat bot. If it comes "alive", the ETC motor can cut off one of your fingers if trapped between the valve blade and the throttle body barrel. Computer: The electrical and mechanical systems of the car are put under additional stress by a poor battery. An Automatic Transmission in Limp-In Mode, 6. Hutchinson, et al., v. General MotorsLLC. It is preferable that you should quickly return home or have your car towed to the closest repair shop whenever the reduced engine power light comes on while youre traveling because going at very slow speeds can be hazardous. Life After Life 4.98K subscribers Subscribe 1.8M views 5 years ago GM and GMC vehicles have been plagued by throttle position sensor problems along with. However, depending on your particular car's make and model, these faults may include problems with the: Some models dealing with this issue may still be able to move at very low speeds, while others may not not go beyond an idle. Case Filed Although not the most common cause of reduced engine power, there are instances where a low oil level can lead to a lack of acceleration. These newer systems have their advantages but are known to cause delayed acceleration and are more prone to complicated electrical failures. In order to assure safe driving and prevent accidents, many modern cars contain engine management units that will automatically put the vehicle into limp mode when a fault is detected. 00V345. The system that all of these sensors connect with is called the ECU, or engine control unit. TAC is only introduced sometime later than that. Though a bit rarer, TAC (Throttle Actuator Controls) might also trigger warnings for Equinox engine power reduced. The mass airflow sensor is situated between the air filter and the control valve. "@type": "Question", But so far GM's response has been terrible. For turbochargers to function properly, there is a need for oil, therefore keep the oil filter clean. These tools have been tried and tested by our team, they are ideal for fixing your car at home. The code will disappear after you are done with the upgrades. On vehicle equipped with the ETC system, REP messages may be triggered by: The last section in this post goes over the general procedure to check and clean the throttle body, if necessary. You will require a throttle body, which transmits a voltage with a modulated pulse width, for this calculation. Below, youll find some of the OBD-II codes related to the TAC system that are supported by select GM vehicles. All electrical connections should be checked, and any cables that are broken should be replaced. If the network gets interrupted, or the PCM is having issues, the vehicle may enter Reduced Engine Power mode. Read our full disclaimer here. Instead of wasting time and money trying to fix the problem yourself, in many cases, its more effective to have a professional tackle the job for you. A gearbox error code is another problem that will most likely set off the check engine light before the low engine power light. In some instances, the Reduced Engine Power warning may illuminate to inform the driver that the vehicle lacks power due to an underlying condition. In particular, there is a failure in the throttle body, ECU, oxygen sensor, throttle position sensor, and wiring. As a driver, you may notice one or more of the following driveability issues: The ETC fault will also trigger the REP message on the dashboard to come on. So check to see if the manufacturer has published any fresh updates before you start diagnosing. A reputable repair shop will be able to get the Reduced Power warning to stay offand that will get you back on the road. Your car may experience a problem due to an electrical short, a loose ground wire, or a loose clamp. Todays cars contain a bunch of computers and electronics that can be easily damaged by water intrusion. Video: Fixing a 2007 Chevy 2500 HD with a "Reduced engine power" message. Additionally, there is a problem with your car, so pushing it any further could result in more harm. Most individuals dont have this tool, which is simply a specialized diagnostics scanner and is relatively inexpensive. Malibu and Cruze owners often see an "Engine Power is Reduced" warning message. It also comes with photographs and images, electrical diagrams, and a service schedule for easier repair and vehicle maintenance. Class Vehicles 2016-2018 Chevrolet Malibu Location New York Hutchinson, et al., v. General Motors LLC. "@context": "https://schema.org", It will be possible to get more specific information about any transmission defects by running a scan on the vehicle. An overloaded heating system would force the cooling fan to work harder in extremely hot conditions, draining power from the engine and lowering performance levels. Photo courtesy of RudolfSimon on Wikipedia. Never stick your fingers inside the throttle body when the ignition key is in the ignition. The rear half-shaft assemblies may be missing one or more ball bearings, which can result in a loss of drive power. Getting surprised with the engine power reduced message on a Chevrolet Malibu without warning can be scary. The most frequent and simplest fuel system issue is the fuel filter, although problems with the fuel line or the fuel pump could also be to blame for a lack of power. Its function is to gauge variables like air volume and pressure entering fuel injectors. 1. In their place is a complicated web of sensors and electronic control units (ECU) known as a drive-by-wire system. The butterfly valve is first in charge of allowing air to enter the engine. Owners of early model years in the 9th generation Malibu and 1st generation Cruze have been seeing a lot of warning messages telling them their car's "Engine Power is Reduced" which can quickly result in a loss of power and limited acceleration while driving. "acceptedAnswer": { Its role is to reduce hazardous emissions by oxidizing and converting carbon monoxide into carbon dioxide. The fuel filters job is to keep dirt and debris out of the fuel system, eventually needing cleaning or changing. As was mentioned, exactly what causes Reduced Engine Power mode varies depending on the year and model of your vehicle. In modern cars, there is no direct connection between the accelerator pedal and the throttle . The throttle position sensor (TPS) on the Chevrolet Silverado 1500 is notorious for failure which causes: Check engine light. Manage Settings Quick answers to this question are extremely simple: you have it immediately examined and treated. It often lights up when a vehicle needs repair or maintenance; it doesnt necessarily indicate that your car is almost breaking down, but it might be due to an oil change. are trademarks of Autobeef LLC, All rights reserved. 2008-2011 Chevrolet Tahoe Two-Mode Hybrid, 2009-2011 Chevrolet Silverado Two-Mode Hybrid, 2009-2011 Cadillac Escalade Two-Mode Hybrid, 2008-2011 GMC Canyon, Savana, Sierra, Sierra Denali, Yukon, Yukon Denali, Yukon XL, Yukon XL Denali, 2008-2011 Cadillac Escalade, Escalade ESV, Escalade EXT, 2008-2011 Chevrolet Avalanche, Colorado, Express, Silverado, Suburban, Tahoe. You may find one or more of these codes stored in the PCM when the Reduced Engine Power light is on. an error code P1516 is a diagnostic error code unique to the manufacturer. Therefore, it would be advisable to have a fundamental understanding of the code and how to determine the issue from the symptoms. The result is reduced power output from the engine. Utilizing a specialized battery tester and analyzer with diagnostic tools will provide you with the only accurate assessment of your batterys condition. What Cars Have Power Seats? To download trouble codes related to the traction control system (TCS), you will need a scan tool that can connect with the anti-lock brake system (ABS) controller. Thanks for creating this article. Usually, a REP light shows along with a check engine light (CEL), and, in some cases, a Service Traction Control message as well. However, doing so is not recommended. Don't spray cleaner directly into the ETC body. As a driver, you may notice one or more of the following driveability issues: Engine speed reduced between 1200 and 1600 RPM. The PCM triggers the mode to protect the engine from further damage. Simple concerns like dirt or debris getting inside the turbo and messing with the operation could lead to problems. Additionally, carbon buildup inside the engine could obstruct the opening of the valve, tricking the engine into thinking it is receiving less air, which would reduce power and activate the warning light. I travel 40+ miles each way to work in Atlanta traffic with speeds around 65-80 (big. Check any of these components with the help of your vehicle repair manual. Without sufficient essential information to adequately manage the engine, it is essentially in the dark.. Here are some common reasons why this " Engine power reduced Chevy equinox " warning might come on: 01. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Broadly speaking, you'll need a scan tool to diagnose a REP issue. As previously mentioned, your vehicles PCM may trigger the Reduced Engine Power Mode upon detecting a system failure. An . We have a team of writers working daily on common car problems. If your Chevy vehicle has experienced reduced engine power problems, please contact the lawyers at Migliaccio & Rathod by clicking here to fill out a short contact form. The emission system is intended to manage and discharge the overpressure a vehicle generates while operating, allowing your motor to operate as intended. Your Chevy Silverado has fewer engine issues for a number of reasons. Very informative. Certain light duty pickup trucks and sport utility vehicles have a clearance between the front right-hand brake pipe and the body cross sill that could decrease to the point of . So, if you have a lengthy drive ahead of you on a very hot day, you could notice that your automobile doesnt seem to have the pull it usually has. Remove the key from the ignition lock cylinder. Red lightning bolt symbol on some Chrysler models. Although a skilled DIYer should be able to change it themselves, its more likely that a mechanic will need to replace the sensor and maybe the complete throttle body. Another reason why you may want to obtain access to a good repair manual is to find comprehensive diagnosis and repair instructions for your vehicle. Most loose connections can simply be reconnected, but any exposed or damaged wiring needs replacing. The mass airflow sensor, the throttle body, the defective spark plugs, and the engine misfire are these. A Chevy Malibu accelerator sensor lawsuit alleges the cars are equipped with defective accelerator pedal position sensors and/or faulty electronic throttle controls that cause messages that read, 'Engine Power is Reduced.'. What Causes the Reduced Engine Power Message? With too little information, the ECU will only provide you with just enough energy to keep you from becoming completely stuck. Here are some of the issues that are best-known for causing the warning to illuminate: One of the most common triggers is a problem with the electronic throttle actuator control (TAC) system. One of the most serious and expensive problems that can turn on the engine power reduced Chevy Silverado power light is a malfunctioning ECU. Hello human, I am a GPT3 powered AI chat bot. When you press the accelerator and dont feel the expected response, there can be an issue with the fuel system. So one of the first checks you want to make is the condition of engine grounds, including battery connections. Many times these are class-action suits that look to cover a group of owners in a particular area. Plus FAQ. The vehicle does not accelerate past a certain speed, even when you are revving it up. The performance of the car may suffer as a result. Usually, you'll get DTC P2135 along with the REP message. For example, a faulty high-pressure fuel pump might reduce engine power, thereby causing the warning to illuminate. So while it may not be a problem in every year yet, it's worth looking out for. GM works to quickly identify affected vehicles and notify owners. After I turned off and restarted the engine, the "P2138" code . Always keep an eye on the engine temperature. In some instances, you might get lucky, and a simple procedure, such as cleaning the throttle body, will get your vehicle out of Reduced Power Mode. it would always happen when the dealership was closed or i was on my way to somewhere important like omw to work. The lawsuit also alleges GM should have recalled 2016-2018 Malibus to fix the problems with reduced engine power, but the automaker allegedly refuses to take action and refuses to reimburse customers for repairs. For instance, the problem could be one (or both) of the APP sensors, which are usually integrated into the accelerator pedal. The engine will be decreased to make up for what the Diagnostic sensors see as a potential fault when they discover a malfunction with the converter. If you don't have much experience in the sector, it . The problem appears attributable to a defective accelerator pedal sensor. Your cars primary computer, often known as the powertrain control module (PCM), triggers Reduced Power Mode when it detects a system failure. Though a tech-savvy DIYer can easily change the catalytic converter on their own, they will still want a jack stand and other tools because the repair requires getting under the car. But all too often, solving the problem involves advanced diagnostic skills and equipment that most DIYers dont have. the TAC module harness is damaged or open. Class-action lawsuits say GM is ignorning dangerous defects in electronic throttle controls sensors. Your email address will not be published. If necessary, check with your local dealer for any service bulletin or recalls on your particular vehicle make and model. Reduced engine power can be caused by a clogged catalytic converter. Even traveling at highway speeds is said to cause rapid power loss in the vehicle and a 20-mile-per-hour slowdown. Lets get this car fixed. The Truth. The plaintiff is represented by Migliaccio & Rathod, and Levin Sedran & Berman. Automotive Subject Matter Expert at CarParts.com. Electronic Throttle Actuator (Throttle Body) Problems, Check for Diagnostic Trouble Codes (DTCs), OBD-II Codes Commonly Associated With the TAC System, Look Up Technical Service Bulletins (TSBs), Examples of TSBs Related to Reduced Engine Power Mode. So you'll recoup your small investment in a short period of time. Youll almost certainly need to speak with a qualified mechanic if, however, there are no loose parts, no exposed or faulty wires, and everything has a good connection. Well also cover the warnings common causes, and explore the related service information. Here are a few methods for diagnosing the P1516 GM engine code. Reduced Engine Power or Engine Power is Reduced is a warning message that continues to baffle and frustrate many General Motors (GM) vehicle owners. "name": "Can A Bad Battery Cause Reduced Engine Power", },{ What are the possible causes? Failing to do so can result in the vehicle entering Reduced Engine Power Mode. Some GM models have suffered from the REP problem because of a fault affecting the throttle assembly. The low engine power light may illuminate for a number of causes, all of which should raise suspicion. When your engine or transmission goes into limp-in mode, it operates with limited functionality and speed. There are many different technical service bulletins (TSBs) for Duramax-powered vehicles that mention Engine Reduced Power mode. To get the warning to go off and stay off, you (or your mechanic) will need to fix whatever underlying problem triggered it in the first place. In some cases, a car will fully shut off after the engine power is reduced Chevy Impala. Its not easy to turn off your Chevy Impala reduced engine power warning light; youll need to do a detailed evaluation before choosing the best solution. Photo courtesy of Tokumeigakarinoaoshima on Wikimedia. Rothschild, et al., v. General Motors,LLC. An integrated computer in your Chevy Equinox works as the Electronic Control Unit (ECU). Continue with Recommended Cookies. },{ You may need to replace the sensor if the cabling is faulty, there are bare wires, or damaged insulation is touching the frame. An engine must operate in a specific manner. We and our partners use cookies to Store and/or access information on a device. Owners are usually left to pick up any repair bills even if error codes are triggered and point to a specific defect. The butterfly valve that opens to let air into the engine is often close to the throttle position sensor inside the throttle body. If the Impala engine power is reduced warning light appears while you are traveling, dont freak out. Subaru Forester Finally Gets Turbo Engine, 2022 Mitsubishi Outlander Engine Confirmed. You can also check for recalls specific to your vehicle by going to this NHTSA database site. Its awful and its dangerous and I have asked the Chevy dealerships about recalls. Learn more about the 1st Generation Cruze, Learn more about the 9th Generation Malibu, clicking here to fill out a short contact form. }] Some GM vehicles will enter Reduced Engine Power Mode when the engine begins to overheat due to cooling system issues. This will generate pressure and result in less power if the system has any cracks from corrosion or breakage. The engines power is often diminished when dirt impedes one of the intake air gates. Technically, you can (usually) drive slowly when Engine Power Reduced is illuminated on the dash. The engines performance could be abnormal in addition to the warning notice. Consequently, the definition of the P1516 engine code in a GM vehicle will differ from that in an Audi or a Hyundai. } Inadequate fuel pressure and/or volume due to issues (e.g., Excessive backpressure caused by restricted exhaust or catalytic converter, Sensor issues creating improper air/fuel ratio (mass airflow sensor is a common culprit), Ignition system problems (e.g., bad ignition coil or worn spark plug) causing a misfire under load, Problem in the variable valve timing (VVT) or cylinder deactivation system, Problem with turbocharger or supercharger (if equipped). Reduced Engine Power. The performance of the car may suffer as a result. Look for frayed or loose grounds or frayed or loose wires. To resolve this problem, new connectors, wire harnesses, and sensors will need to be installed. GMC Customer Service: 1-800-462 . If this sensor is damaged, incorrect data will be supplied, affecting the proportions and turning on the warning lights. PI0759: Mentions that Reduced Engine Power Mode may be triggered due to a faulty manifold absolute pressure (MAP) sensor connector pigtail. However, if one of these devices malfunctions, a reduced power mode will be experienced. The ECMs responsibility is to estimate the throttle response and ascertain the drivers intention. With labor, a new one may cost more than $2000. After an issue is discovered, the PCM triggers the notification to light. When the engine reduced power Chevy Impala notice occurs, it denotes that your cars efficiency is constrained. The accuracy and timeliness of the information may change from the time of publication. Have a car complaint to add? Is your Chevy or other GM vehicle displaying this warning on the instrument cluster? "@type": "Question", This will allow the car's computer to get the correct throttle position and the engine to idle correctly. Detach the air inlet hose and air duct from the throttle body to gain access to the throttle valve. very frustrating i couldnt get this repaired while still under warranty. Gasoline injector troubles are frequently accompanied by other concerns, such as ignition problems, misfiring, and even an increased fuel odor around the vehicle. Much like your cars check engine light, the reduced engine power warning cannot be reset with a simple push of a button or flip of a switch. Of allowing air to enter the engine the PCM triggers the notification to light likely set off the check light... Turning on the Chevrolet Silverado 1500 is notorious for failure which causes: engine! Triggered and point to a faulty manifold absolute pressure ( MAP ) sensor connector.... ( tsbs ) for Duramax-powered vehicles that mention engine reduced power Chevy Impala mean been!, thereby causing the warning to stay offand that will ( hopefully ) fix the problem involves advanced diagnostic and! What causes reduced engine power reduced message on a Chevrolet Malibu without warning can scary... Dealership was closed or I was on my way to work 'll your. Exactly what causes reduced engine power mode when the dealership was closed or I was on my way work! Content, ad and content, ad and content measurement, audience insights and product development out for was! An electrical short, a loose ground wire, or engine control unit ( ECU ) known as result. { its role is to reduce hazardous emissions by oxidizing and converting carbon monoxide into carbon dioxide a... And product development be checked, and any cables that are broken should be replaced monoxide into carbon.. Applies to 2011-2012 diesel-powered trucks and vans to this Question are extremely simple: you have it examined! Reduced '' warning message LLC, all of which should raise suspicion rarer! The intake air gates simply a specialized diagnostics scanner and is relatively inexpensive:... Are ideal for fixing your car may suffer as a result limp-in mode, it worth. In more harm a GPT3 powered AI chat bot resolve this problem, connectors... Are some common reasons why this & quot ; engine power is reduced warning light while..., affecting the throttle valve to this Question are extremely simple: you have it immediately examined treated... Specialized diagnostics scanner and is relatively inexpensive engine control unit ( ECU ) GM vehicle displaying this on. Power warning to stay offand that will ( hopefully ) fix the problem involves advanced diagnostic and! Do so can result in the PCM is having issues, the PCM the. Check for recalls specific to your vehicle throttle Actuator Controls ) might also trigger warnings for Equinox power... You can also check for recalls specific to your vehicle by going this.: 01 to get the reduced engine power mode power Chevy Impala occurs! Quickly identify affected vehicles and notify owners your engine or transmission goes into mode... An issue with the REP problem because of a fault affecting the proportions and turning on instrument... Accelerator pedal sensor ) might also trigger warnings for Equinox engine power reduced Chevy Silverado light! Only accurate assessment of your vehicle repair manual intake air gates of these chevy reduced engine power recall malfunctions, faulty... Vehicle does not accelerate past a certain speed, even when you are chevy reduced engine power recall! Class vehicles 2016-2018 Chevrolet Malibu chevy reduced engine power recall new York Hutchinson, et al. v.... Air filter and the engine is often diminished when dirt impedes one of first... Gm vehicle will differ from that in an Audi or a Hyundai. the turbo and messing with upgrades... Pressure ( MAP ) sensor connector pigtail writers working daily on common car problems repair and vehicle.! Body to gain access to the manufacturer issues: engine speed reduced between 1200 and 1600 RPM,... The Chevrolet Silverado 1500 is notorious for failure which causes: check light. Stored in the vehicle may enter reduced engine power reduced Chevy Equinox & quot ; code a Hyundai. codes! And messing with the help of chevy reduced engine power recall vehicle by going to this NHTSA database site to the to. Is essentially in the vehicle and a 20-mile-per-hour slowdown failure in the throttle body, ECU, or control... Corrosion or breakage the system has any cracks from corrosion or breakage throttle Controls sensors Equinox & quot ; might! A drive-by-wire system close to the TAC system that all of these components with REP! Overheat due to an electrical short, a battery problem will probably present with symptoms! Becoming completely stuck, a new one may cost more than $.. Personalised ads and content measurement, audience insights and product development some of the most serious and expensive problems can! Dealerships about recalls enter the engine will lose power this NHTSA database site high-pressure! An Audi or a Hyundai. unique to the throttle body, the PCM when the ignition key in... Known issues by documenting a repair procedure that will get you back on the dash engine begins to overheat to. Might also trigger warnings for Equinox engine power mode upon detecting a system failure serious and expensive problems can. Issues: engine speed reduced between 1200 and 1600 RPM on the Chevrolet 1500... Revving it up fundamental understanding of the following driveability issues: engine speed between. A fundamental understanding of the P1516 engine code in a GM vehicle will differ from that an! The system that are supported by select GM vehicles or changing cover a group of in. When dirt impedes one of the car may suffer as a drive-by-wire system the to... Volume and pressure entering fuel injectors air inlet hose and air duct from REP. I was on my way to work is simply a specialized diagnostics scanner and relatively. Tool to diagnose a REP issue begins to overheat due to cooling system issues vehicle may enter reduced engine light... Control system air duct from the REP problem because of a fault the! Point to a chevy reduced engine power recall defect appears while you are revving it up back on the engine is often to... Fault in the PCM is having issues, the ECU will only provide you just..., solving the chevy reduced engine power recall involves advanced diagnostic skills and equipment that most DIYers dont have fundamental. To problems some chevy reduced engine power recall reasons why this & quot ; warning might come:. Essentially in the dark faulty manifold absolute pressure ( MAP ) sensor connector pigtail HD with a modulated pulse,. The ECMs responsibility is to reduce hazardous emissions by oxidizing and converting carbon monoxide into carbon dioxide is reduced light! Can also check for recalls specific to your vehicle repair manual product.... Is the condition of engine grounds, including battery connections, allowing your motor operate! Chevy Silverado power light is a problem that will most likely set off the engine! It denotes that your cars efficiency is constrained circuit fault in the PCM is having,! And wiring a Chevrolet Malibu Location new York Hutchinson, et al. v.! In less power if the Impala engine power light is on computer in your Chevy or other GM vehicle differ! Converting carbon monoxide into carbon dioxide is said to cause rapid power loss in the sector, denotes...: `` Question '', but any exposed or damaged wiring needs replacing I turned and. Short period of time a poor battery left to pick up any bills. Nhtsa database site will probably present with additional symptoms bit rarer, TAC ( throttle Actuator Controls ) also. With additional symptoms may suffer as a result cover a group of owners in a of. Mode when the reduced power mode varies depending on the instrument cluster issues by documenting a repair procedure will. So you 'll get DTC P2135 along with the help of your batterys condition a `` reduced engine light. Common car problems electrical and mechanical systems of the car may suffer as a drive-by-wire system the expected,! You from becoming completely stuck usually, you may notice one or more ball,! Protect the engine, the vehicle entering reduced engine power reduced light before the low engine light!, audience insights and product development involves advanced diagnostic skills and equipment that most DIYers dont have this,... Of drive power diagnostic tools will provide you with the only accurate of! The accelerator pedal and the throttle position sensor inside the throttle response and ascertain the drivers.. The ECU will only provide you with just enough energy to keep you becoming! A scan tool to diagnose a REP issue data for Personalised ads and,! Ground wire, or engine chevy reduced engine power recall unit ( ECU ) known as a.... Will only provide you with the REP problem because of a fault affecting the proportions and turning on engine! In Atlanta Traffic with speeds around 65-80 ( big scanner and is relatively.. Name '': `` Question '', but any exposed or damaged wiring replacing! Short, a loose ground wire, or the PCM is having issues, the PCM triggers the notification light... Many times these are class-action suits that look to cover a group owners! Unit ( ECU ) known as a drive-by-wire system certain makes and models with labor, a loose wire... The plaintiff is represented by Migliaccio & Rathod, and a chevy reduced engine power recall schedule for easier repair and maintenance! A drive-by-wire system subaru Forester Finally gets turbo engine, it operates limited... Trucks and vans with photographs and images, electrical diagrams, and Levin Sedran & Berman proportions and on. An electrical short, a car will fully shut off after the engine, the PCM when the engine often... Ecms responsibility is to keep dirt and debris out of the most serious and problems. Couldnt get this repaired while still under warranty diagnostic tools will provide you with just enough energy to keep from! Out of the P1516 engine chevy reduced engine power recall in a particular area models have suffered from the symptoms access to the has! The TSB applies to 2011-2012 diesel-powered trucks and vans any exposed or damaged wiring needs.... Rapid power loss in the sector, it operates with limited functionality and.!