What does “Loss of Engine Power” mean on my Chevy Malibu?
When you drive a Chevy Malibu, you expect all systems to work as intended. It’s a shock when you see the message “Loss of Engine Power” appear on your dashboard. So, what does this mean? It’s important to know that many people are plagued by the “Loss of Engine Power” problem on their Chevy Malibu. So you’re not alone.
In this guide, we’ll explain what this warning message means and some of the most common causes. We’ll also show you how to fix the problem so you can enjoy your Chevy again. Finally, you’ll find answers to some of the most important questions being asked right now:
What does “reduced engine power” mean on my Chevy Malibu?
If you see a “reduced engine power” warning on your message screen, it means that your Chevy Malibu has experienced reduced power delivery. According to a proposed class action lawsuit, this reduced performance issue is a common defect on Malibu models.
When power is reduced and a warning message appears, the check engine light may also come on. This is a further indication that there is a mechanical problem that needs to be addressed. As with most warning lights, we recommend having it inspected immediately. Continuing to drive at minimum power is not advisable and it is important to prevent further damage.
Causes of engine power loss on Chevrolet Malibu
According to recent reports, the engine power loss issue appears to be primarily affecting 2018 to 2022 Chevrolet Malibu models. In addition to poor engine performance, the computer often has one or more error codes. Most affected Malibu vehicles have a 1.5-liter turbocharged four-cylinder engine rated at 160 horsepower.
Here are some of the most common issues:
1. Accelerator pedal position sensor failure (most common)
Your accelerator pedal has a sensor that monitors its position. It’s a small sensor, but if it fails it can cause big trouble. If the sensor isn’t working properly, it can cause poor engine performance.
In previous Malibu models, the accelerator pedal was connected by a cable. Here, we put the sensor in place and create the missing mechanical connection. The entire electrical system is monitored by sensors, and that information is sent to a computer. The computer determines how much power the throttle body has to deliver.
However, if the sensor is not working, the computer does not have the correct information. Therefore, the wrong amount of power is sent, which causes many problems, including this warning message.
2. Faulty Electronic Throttle Control System
The electronic throttle control system can also have other defects. We’ve already mentioned problems with the accelerator pedal position sensor, but it’s also possible that there’s a problem with another sensor in the throttle body itself.
Without an unhindered exchange of information between sensors, the computer doesn’t know what to do, so performance will suffer until the problem is fixed.
3. Faulty Engine Sensors
For an electronic throttle control system to work as intended, all of the sensors in the system must communicate with each other. The pedal sensor sends information to the throttle sensor, and all of that information needs to be read by the engine.
If this main sensor fails, the system doesn’t know how to react. Again, you’ll see the “Loss of Engine Power” message come on. The Check Engine Light may also come on along with it.
4. Faulty Wiring
Modern throttle control systems are electronic, so there are a lot of cables and connectors between the sensors. If any of these connections fail, the message may also appear.
This issue is not that common, but it can happen. Resolving this issue can also be a time-consuming process, considering the number of cables and connectors that need to be inspected.
How to Fix Low Engine Power Message in Chevy Malibu When the message appears on your dashboard, it should be addressed immediately to prevent further damage. Since this is a known issue with newer Malibu models, Chevy technicians recommend the following steps:
1. Check your warranty
Before you do anything else, check to see if your factory warranty is still valid. Most modern Chevrolets come with a three-year/36,000-mile bumper-to-bumper warranty and a five-year/60,000-mile powertrain warranty.
If your car is still under warranty, it’s best to take your Malibu directly to a dealer. A technician will fix the problem for free.
Some people choose to purchase an extended warranty for their vehicle; depending on which company you hire, this may or may not cover this issue. It’s best to contact the provider directly to find out how to proceed.
2. Read the error code
If your Malibu is out of warranty, you’re on your own. With a compatible code scanner, you can find out why the light is on. Plug the scanner into the OBD-II port under the steering wheel near the driver’s door.
Compare the information to our online error code library to determine the cause. If multiple codes appear, a reset is recommended. Once you have reset the computer, you can drive a bit until the light comes back on. The only codes displayed at this point should be those most related to the problem.
3. Clean the Throttle Body
If the throttle body contains dirt or contaminants, this can cause problems. Inspect the throttle body to see if it needs cleaning. If the throttle body is in good working order and not clogged, it should open and close without much force. It should also close automatically when released.
To clean the throttle body, follow these steps:
– Remove the throttle body from the air duct. Marking the vacuum lines and electrical connections as you disconnect them will make them easier to reconnect.
– Turn the throttle. Spray it with throttle body cleaner.
– Blow the throttle body with compressed air to dry it out. Do not reinstall the throttle valve until it is dry.
– Install all connections and vacuum lines in reverse order.
If that doesn’t solve the problem, you’ll need to continue with the diagnostic procedure.
4. Check the fluids
It’s unlikely that the problem is caused by low fluid levels, but technicians often recommend doing this procedure just to be sure. Check the oil level to make sure your engine has the lubrication it needs. If more fluid is needed, you can refill it now. If the fluid is also contaminated or dirty, it should be replaced immediately. Dirty fluid will not provide the lubrication your vehicle needs.
5. Consult a Professional
There are several reasons why it is best to visit an auto repair shop: If you can’t identify the problem yourself or don’t have the tools to diagnose it, the best solution is to take it to a mechanic. Most issues can be identified in just an hour. You’ll also receive a detailed cost estimate to fix the problem.
If you’ve diagnosed the problem but don’t think you can fix it yourself, consult a local mechanic. Be careful where you go though, as not all repair shops are reputable. First, find someone you trust.
Should you continue driving despite the “Loss Engine Power” warning? No, you should stop driving as soon as possible. The “Loss Engine Power” message is an important message that should never be ignored. Loss of power can not only lead to accidents, but it can also cause greater damage if not corrected.
Can a low oil level cause a message that your engine is losing power?
Yes, your engine needs oil to run efficiently. If there isn’t enough oil circulating through your engine, it can lose performance and cause wear. Failure to add the recommended amount of oil can cause permanent damage to your engine, requiring a rebuild or replacement, which can result in costly repairs.
How do I turn off the low engine power warning?
The only way to permanently remove the warning message is to fix the problem. You will need to follow diagnostic procedures to find out what’s wrong and fix it. If it does, then there’s something else wrong.
If your Chevy Malibu displays the “Lossed Engine Power” message, it needs immediate attention. It’s essential to act quickly to prevent further wear, but don’t panic. This is a common issue with Malibu models and appears to be a manufacturing defect.
With the help of our guide, you should know what’s wrong and how to fix it, so you can get your Malibu back in good running condition and enjoy your drive again.