Engine And Engine Cooling Problems of Chevrolet Malibu - part 1

The vehicle is experiencing an apparent fuel-system malfunction. The vehicle has a very strong raw gasoline odor, significant difficulty starting, and appears to be consuming fuel at an abnormally high rate. After filling the fuel tank completely, I drove approximately 20 miles at most and the fuel gauge decreased by approximately one-quarter of a tank. The engine oil also has a strong gasoline odor, indicating that fuel may be entering the engine oil. The exact failed component has not yet been diagnosed. The vehicle is available for inspection upon request. The strong raw gasoline odor and apparent rapid loss of fuel create a concern for a fuel leak and potential fire hazard. The vehicle also has difficulty starting and shuts the engine off when the automatic stop/start system activates while stopped at a traffic light. This creates a safety concern because the vehicle may not restart normally when traffic begins moving. I am concerned that the vehicle may have a fuel-system defect similar to the high-pressure fuel pump/fuel-line issue previously recalled on certain 2016-2018 Chevrolet Malibus. No. The problem has not yet been diagnosed or confirmed by a dealer or independent service center. The symptoms have been personally observed while operating the vehicle. This was my first step as this happened at 10:30pm. No. The vehicle has not yet been inspected by the manufacturer, police, insurance representatives, or another official representative. I am reporting the problem because of the severity of the symptoms and the potential safety risk. There were no warning lamps or messages that I noticed before the problem occurred. The first symptoms were a very strong gasoline odor, unusually rapid fuel loss, and significant difficulty starting the vehicle. The vehicle also shuts off completely when the automatic stop/start system activates while stopped at a traffic light. These symptoms began recently.

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The contact owns a 2022 Chevrolet Malibu. The contact stated that while attempting to start the vehicle, the check engine warning light illuminated. An independent mechanic was contacted. No warning light was illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the turbocharger needed to be replaced. The vehicle was not repaired. The contact associated the failure with special coverage program: n252508360 (turbocharger replacement for up to 15 years or 150,000 miles); however, the VIN was not under recall. The manufacturer was notified of the failure and informed the contact that the VIN was included in the program. The approximate failure mileage was 82,949.

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The contact owns a 2018 Chevrolet Malibu. The contact stated that while the vehicle was parked, the message "shift to park" was displayed on the instrument panel. The gear shifter was shifted back into drive and then back into park to turn off the vehicle. The contact also stated that while driving approximately 65 mph, the vehicle shuddered, started to lose automotive power, and then continued driving; however, the vehicle operated at reduced power and failed to exceed 30 mph. The check engine warning light was illuminated. The vehicle was restarted; however, the failure persisted. The contact stated that there was an unknown liquid dripping underneath the vehicle. The manufacturer was notified of the failure. The failure mileage was approximately 180,000.

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2016 Chevrolet Malibu hybrid lt 1. 8l - current mileage 147,059 miles the factory exhaust heat exchanger failed internally, leaking engine coolant into the exhaust system. This caused check engine codes p0401 / p26be, loss of cabin heat, coolant loss, and exhaust fumes entering cabin. Gm has released 4 revisions of this part and all fail the same way, indicating known defective design. The part is currently on indefinite national backorder with no eta from gm (order #343585 from gmpartsnow on 08/22/2025 held without ship date). Dealers quote $1,587 and cannot obtain part either. This is a safety and emissions defect: coolant loss risks engine overheating, exhaust leak risks carbon monoxide in cabin, and coolant contaminates catalytic converter. Gm discontinued Malibu hybrid in 2019 without proper fix. This should be recalled. They produced a car, we bought it and now they don’t have the overpriced parts in stock to fix my car and when the parts is backordered, I keep driving it because I can’t work without my car which I very much need, the hybrid battery gets overheated, then they sell battery too and other damages too which will cost thousands to fix. This is a scam!.

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The contact owns a 2018 Chevrolet Malibu. The contact stated that there was an abnormally strong gasoline odor coming from the vehicle. The contact stated that while driving at various speeds on several occasions, the accelerator pedal was depressed, but the vehicle failed to respond, requiring the driver to pull over to the side of the road. The message "engine power reduced" was displayed. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the fuel injectors had failed and needed to be replaced. The mechanic retained the vehicle and informed the contact that it was unsafe to drive due to a potential fire risk. The vehicle was not repaired. The dealer was contacted and confirmed that the VIN was not under recall. The dealer advised the contact to bring the vehicle in for service. The manufacturer was notified of the failure and confirmed that the VIN was not under recall. The failure mileage was approximately 169,000.

Just bought the car and the car is receiving error: "shift to park". This appear to be a know issue for 2018 chevy Malibu hybrid. Car cut off in middle of traffic.

Was stopped at a red light. When the traffic light turned green, I pressed the accelerator to proceed through the intersection, but my vehicle did not respond or accelerate immediately. After several seconds, the vehicle finally began to move. This unexpected delay created a safety concern because I was unable to accelerate when traffic began moving. Which caused built up traffic and an almost wreck behind me.

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My 2022 Chevrolet Malibu lt repeatedly and unpredictably enters a "reduced engine power" state, causing sudden, dangerous drops in speed while driving in traffic. This intermittent loss of power happens constantly on and off, creating an ongoing and severe safety hazard. A diagnostic scan reveals codes p0299 (turbocharger underboost), p1101, and p2227. General motors has an active special coverage program (n252508360) covering this exact turbocharger failure for 2022 Malibus with the 1. 5l engine. However, gm and the local dealership refuse to cover the repair, claiming my specific VIN is excluded from their automated list. I have already replaced the maf and map sensors to eliminate electrical faults, had all hoses examined for leaks, and I've replaced the air filter under the hood and in the cabin twice, proving this is a chronic mechanical failure of the turbocharger system. Gm is using arbitrary VIN boundaries to avoid repairing a known, widespread manufacturing defect that continually compromises vehicle safety.

A screen popped up saying “reduced engine power” I was already omw to the shop to get one thing fixed. When they tried to pull my car in they say they he car wouldn’t drive and it was hard to accelerate and they had to put it in neutral to get it in the shop. They said they fixed the problem but when I left to go into the main road, my car wouldn’t accelerate to the speed I needed and cars were coming. They were beeping and thank god they were able to slow down because they’ve would’ve hit me. The car does not accelerate and the manias can’t figure out why. Upon doing my research there are 100’s of folks saying the same thing. Right now I am out of a car, I literally just moved on 6/30 and not only do I work doordash, I have a day job and an overnight job. My car is how I make my money and this issue is putting a lot of stress and frustration on me because I need to get to and from work to pay bills. I am waiting to hear back from another mechanic which is even more stressful. Waiting, trying to figure out who can fix this issue and what the issue is.

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Component: air conditioning – a/c hose assembly / refrigerant discharge line the air conditioning refrigerant discharge line (a/c hose assembly) appears to have been improperly designed and/or installed during manufacturing. The rubber a/c hose was routed in a manner that caused it to rest against or press against the side of the engine. Over time, the engine heat and constant contact burned a hole through the hose, causing a rapid loss of refrigerant (freon). As a result of the refrigerant leak, the air conditioning system stopped blowing cold air, and the hvac system no longer functioned properly. This failure was not caused by normal wear and tear, but by the improper routing and placement of the a/c hose against the engine. The issue was confirmed by meineke service center through a diagnostic inspection and uv dye leak test, which identified the damaged refrigerant discharge line as the source of the leak. A significant safety concern is that simply replacing the hose does not permanently correct the problem if the replacement hose is routed in the same location. Without a manufacturer-provided redesign or long-term repair solution that prevents the hose from contacting the engine, the replacement part is at risk of failing in the same manner. There were no warning lights, dashboard messages, or other indications before the failure occurred. The air conditioning stopped blowing cold air after the refrigerant escaped through the damaged hose. I believe this is a manufacturing and/or design defect that could affect other vehicles with the same hose routing configuration. I am requesting that NHTSA investigate this issue and determine whether a safety recall or manufacturer corrective action is warranted.

While coming down mcclure pass in colorado my brakes failed. The the car went to engine power reduced mode. After getting the car to an independent mechanic I was told that the vacuum pump failed and exploded the parts into the camshaft. After 2 days of repairs I was finally able to get my car back to working order. This could have been a fatal car accident coming down a mountain pass. I was able to get stopped safely because I know the road. I had just driven 700 miles over eisenhower pass, vail pass, glenwood canyon, and then the final pass being mcclure pass where it failed. I bought this car brand new and I probably won't buy another chevy after this. This was a terrifying experience that I will have lasting trauma from.

Transmission misfiring.

I was driving back home and stopped at a red light. When the light turned green I started driving, but my car was jerking a little too much. I pulled over and turned my car off. When I cut my car back on my brake became very hard to the point I had to push down extra hard to stop my car. I started back driving home once I realized my car needs to be turned completely off and sit. While I'm driving I see a message on my dashboard saying "engine power reduced. " luckily I made it home safely with no wrecks, but when I had to brake my car was still moving jerking while in place. Also when I made it home and turned my car off I heard a fan like noise that eventually stopped.

The trottle body position sensor just started acting up. Took it to mechanic. They stated they can try to fix it but it may only work for a month then go back out. May end up paying over 6k and the car isn't worth it.

Vacuum pump failure causing hard brake pedal which made near to impossible to brake safely and properly that lead to timing chain issues.

The contact owns a 2023 Chevrolet Malibu. The contact stated that the vehicle hesitated after starting the vehicle, and while accelerating on several occasions from a stoplight. The failure occasionally occurred while driving on the freeway, causing the vehicle to decelerate unexpectedly. The vehicle was taken to the local mechanic, who diagnosed the vehicle and determined that the turbocharger needed to be replaced. The vehicle was not repaired. The manufacturer and local dealer were notified of the failure, but no assistance was provided. The contact was informed that the vehicle did not qualify for an extended warranty coverage associated with the failure. The failure mileage was 128,000.

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The brake vacuum pump broke, causing my brakes to go rock hard and pieces fell down into the camshaft, causing engine damage.

I went to put my car in park and it was saying "shift to park" on my dashboard even though I was already in park. I know that there was a lawsuit that was won for this very defect but my car is not recalled for this and I feel every Malibu should be especially if almost every Malibu is experiencing the same issue nationwide. It cannot be a coincidence. Also I have been having issues with a knocking noise on the back of the car when I am driving and I'm being told it's also another common issue with Malibu's known as the knuckles that need replaced which are not cheap. If these are common issues on every Malibu then every Malibu needs to be recalled for the issue to be fixed not just certain ones. My Malibu has not had one recall but has had the same issues that other Malibu's had with multiple recalls done.

The contact owns a 2018 Chevrolet Malibu. The contact stated that while driving on the interstate and attempting to exit the ramp at 40-45 mph, the brakes failed. After restarting the vehicle, the check engine warning light illuminated. The contact related the failure to NHTSA campaign number: 18v576000 (service brakes, hydraulic). The vehicle was towed to the local dealer, where it was diagnosed that the vacuum pump had failed. The vehicle was not repaired. The manufacturer was contacted, confirmed there was no recall and referred the contact to the NHTSA hotline. The approximate failure mileage was 150,000.

The chevy Malibu is displaying a “shift to park” message even when the gear selector is physically in the park position. This indicates that the vehicle’s computer may not be recognizing that the vehicle has been placed in park, which is commonly associated with a faulty or failing internal park-position sensor/switch. The issue is affecting the vehicle’s ability to shut down properly. It is necessary to turn the vehicle off and back on multiple times before the system will recognize that the vehicle is in park and allow it to shut off completely. If the vehicle does not recognize the park position, it may remain partially powered on and potentially drain the battery.

The contact owns a 2022 Chevrolet Malibu. The contact stated that while driving approximately 62 mph, the vehicle lost motive power with the message "reduced engine power" displayed, and the check engine warning light intermittently illuminated. The vehicle was taken to an independent mechanic, where a diagnostic scan retrieved dtc: p0299, indicating a failure with the turbo charger. The vehicle was then taken to the local dealer, who confirmed that the vehicle was not eligible for the gm special coverage: n252508360. The manufacturer was not notified of the failure. The failure mileage was approximately 82,010.

The contact owns a 2022 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the vehicle unexpectedly entered limp mode with the check engine warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that the turbocharger had failed and needed to be replaced. The vehicle was not repaired. The dealer was contacted. The vehicle was not diagnosed or repaired. The dealer referred the contact to the NHTSA hotline for further assistance. The manufacturer was not made aware of the failure. The failure mileage was approximately 70,000.

While driving my 2013 Chevrolet Malibu (2. 5l), I experienced a sudden and severe failure of the braking system. [insert exactly what happened here—for example: 'the brake pedal suddenly went completely to the floor,' 'the brakes unexpectedly locked up,' 'the vehicle experienced a sudden loss of braking power,' or 'the brake warning lights illuminated right as the brakes failed']. This occurred while traveling at approximately 25 mph on a one-lane road. This total/partial loss of braking power created an immediate safety hazard and a high risk of a crash. The vehicle had to be shifted into manual, then safely coasted to a stop. No prior warning signs or brake issues occurred immediately leading up to this event.

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My cars check engine light keeps coming on and the first time it came on with an engine under boost failure and I took it to a 3rd party shop to get fixed and they had to replace the turbo charger. I paid $2500. 00 for that. 2 weeks later the same light came on and they had to replace it again. Well now the light came on again after a month for the same thing and I am taking it back into the shop again. That will be 3 times.

Unable to accelerate, dangerous when getting on highway or driving up hills.

I’ve reported this problem but as I got into the repair their was far more damaged that was caused due to the vacuum pump. It took out my exhaust camshaft and sent metal through out and the timing needs replaced as well. A shop would rather total my car than what it would cost to fix. I’m attempting to fix it myself but have been without my car for months now. This is created such a hardship and the money it’s continues to take as more and more needs to be fixed or replaced as well as all the gaskets and screws that are only one time use as well as parts like my high pressured fuel line I mean this lost keeps going. I and to replace the water pump as well and all due to this vacuum pump that’s been reported and reported and nothing has been done this is outrageous that what’s caused is so much more then just a vacuum pump it can destroy your vehicle miles don’t matter the less or if you have more the pump goes out when it feels like it. Creating more issues then it should and potentially totaling out a vehicle as it’s been said mine should be. So I’m trying to fix my car to prevent losing it and it’s been one thing after another and such a nightmare. The fact that this issue continues to be ignored is unacceptable and a complete disregard to public safety due to the serious safety issue as mine I could barley get my car to stop the breaks were hard and unable to push down without basically standing on them to get into stop at only 7-8 miles per hour I was moving when the vacuum booster went out. Someone should not have to die to have this issue addressed and to be taken seriously and made right! I can’t believe nothing has been done and that it’s not required to have to address this issue with the severity it bring to one’s safety as well as public safety is beyond me. This is a major lawsuit and people’s lives and lovely hood should be taken more seriously and instead nothing is being done. It’s very concerning to think what has to happen for this to be addressed!.

The vacuum break booster went out. My check engine light came on and it said power reduced I’m not sure exactly. Because my power didn’t reduce but my car seems to be misfiring. Luckily I was going to be turning at a light and there was a few cars in front of me so I wasn’t going fast. As I got closer to the car in front of me I applied my breaks. They would not move and were hard and I gave it all I had to try to get my car to stop and thank god it did. Then my car stalled. I tried to start it and it just kept cranking but wouldn’t turn over, it also would not turn off till about the 3 times I push then button it finally turned off. Yes my safety and others would surely been at risk I wouldn’t have been able to stop in time if someone pulled in front of me or stopped suddenly I would not have been able to stop. If a child ran into the street I inn o way could’ve stopped! my step dad is a mechanic and he also ran a test on the check engine light and it threw 7 codes from this occurring. It didn’t give me no time it was very sudden. Once the engine power reduced appeared on my dash the check engine light came on and my car began misfiring in less then 45 seconds I went to apply the breaks and they were hard and I could barely stop. That was when I was almost about to be at a full stop so I wasn’t going very fast at all and I almost rear ended the person in front of me waiting to turn at the light. Then my car stalled. It all happened within 1 min 30 seconds from the warning my engine power was reduced but my engine power wasn’t not reduced either, and from then my check engine light and it all only took less then 2 minutes to all occur. It was sudden, no warning to think my breaks would not work at all and very quickly it could’ve been so much worse I can’t even imagine. Very alarming and fearful or my life and others from this occurring with no time to react and no idea what happened was going to. I will not buy a chevy Malibu again and I was going to!.

The contact owns a 2022 Chevrolet Malibu. The contact stated that while driving at 70 mph, the reduced power mode message was displayed. The contact linked the failure to TSB 22-na-224. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted, who confirmed there was no coverage. The failure mileage was approximately 76,000.

My battery warning light on the dash is illuminated with the notification saying "service battery charging system. " I've researched online and found out that more vehicles of the same year make and model of my vehicle have been recalled for the same issue, but when putting in my VIN number my vehicle does not show up. This issue poses a high risk of danger if not fixed and I would like it to be fixed at dealership for free because I'm a single mother of 2 and can not afford it at the time.

On 04/28/2026, when diagnosing a reoccurring check engine light on the vehicle at a chevy certified service, the mechanic "borescoped cylinder 4 and found significant scuffs on the cylinder wall which along with the misfires indicate a cracked piston. The big picture appears to be the piston cracked which caused excessive oil consumption and misfires. The excess oil and unburned fuel overloaded the converter causing it to fail. The engine and converter will need to be replaced. " in 2017, a recall was issued by gm to mitigate stochastic pre-ignition (spi) causing cracked piston (17019). Between the initial purchase of the vehicle (11/2016) and performed service required by this recall (03/10/2017), there were approximately 5000 miles driven. No engine diagnosis was performed or recommended. After the 17019 was addressed, the engine misfires continued along with reoccurring cel. C. S. P. N182195660 predictive monitoring for stochastic pre-ignition (spi) released in 2019 states the 1. 5 l lfv engines in certain 2016 and 2017 model year Chevrolet Malibu vehicles may have a preignition condition that requires immediate repair. This condition may cause the engine to perform poorly, misfire, run rough, and/or excessively consume oil. It may also illuminate the vehicle’s service engine light. Over time, if not repaired, the condition can damage the vehicle’s pistons and engine. The VIN for this Malibu was not attached to this notice despite it having spi recall history. On 06/2023 (after the n182195660 program ended), at 80k miles a diagnosis revealed a potential cracked cylinder with no mention of the pre-ignition condition that could cause the crack, and the only way to fix is to replace the entire engine (as per dealer recomendation). Since vehicle was out of warranty, the repair est. Was nearly $10k. I firmly believe my 2016 Malibu has suffered the consequences of poor mismanagement on this recall, and am demanding mitigation from gm to fix this issue.

I am writing to report a serious and dangerous issue that occurred with my 2020 Chevrolet Malibu lt on April 27th 2026. While driving on the interstate after work, my vehicle suddenly experienced a failure that made it extremely unsafe to operate. The brake pedal became extremely hard to press, and the vehicle did not want to slow down or stop properly. This created a very dangerous situation while I was driving at highway speeds. Additionally, I noticed that nearly all of the engine oil was gone, which is extremely concerning and may be related to the failure. Based on these symptoms, it appears the vacuum pump may have failed while the vehicle was in motion. This issue placed me at significant risk of an accident and could have resulted in serious injury. I am requesting an immediate investigation into this matter and assistance with repairs. I would also like to know if there are any recalls, known defects, or extended warranties related to this issue. Please advise on the next steps as soon as possible, as the vehicle is currently unsafe to drive.

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Main seal leaking and engine needs replaced at 95,000 miles.

The contact owns a 2022 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as intended, and the vehicle was driving sluggishly, with the check engine warning light illuminated and the message “engine power reduced” displayed. The vehicle was taken to the dealer, where it was diagnosed with turbocharger failure. The contact was informed that the turbocharger needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 67,506.

The contact owns a 2008 Chevrolet Malibu. The contact stated that while the vehicle was parked, it failed to start up. The vehicle was towed to an independent mechanic, where it was diagnosed dtc: p0016 was retrieved. The contact was informed that the camshaft position correlator and crankshaft and intake were not aligned and needed to be realigned. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 965,162.

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The contact owns a 2018 Chevrolet Malibu. The contact stated that while his daughter was driving and stopped at a traffic light, while depressing the accelerator pedal, the vehicle failed to respond, and the vehicle lost automotive power. The contact stated that five minutes after restarting the vehicle, the vehicle operated as intended. A dealer was contacted. The vehicle was taken to dealer, where it was diagnosed that the engine control module needed to be replaced. The contact stated that the failure had occurred on several occasions. The vehicle was not repaired. The contact associated the failure with NHTSA campaign number: 19v642000 (electrical system, fuel system, gasoline, engine); however, the VIN was not included in the recall. The manufacturer was notified of the failure. The failure mileage was 75,000.