Why is my Chevy Malibu stalling?

Reasons for Chevy Malibu Stalling
If your Chevy Malibu is stalling, there could be several reasons behind this issue. Here are some common causes based on the search results:
1. Inspection by a Mechanic: If you notice your vehicle stalling when you slow down and stop, it’s important to have a mechanic perform an inspection as soon as possible. Continuing to drive under this condition could result in further damage to your vehicle.
2. ECM Reprogramming: Some users have experienced stalling issues even after the ECM (Engine Control Module) was reprogrammed for a different reason.
3. Power Reduction System Notification: Stalling has been reported while driving, with a notification indicating “power reduce system.” This issue can be dangerous and has resulted in accidents.
4. Idle Roughness and Stalling: Stalling has been observed when the car is idling roughly, especially when coming to a complete stop. This issue has persisted even after cleaning the throttle body and replacing the throttle body.
5. Loose Connections: Stalling may be caused by loose connections, such as a loose starter ground cable or a loose alternator cable connected to the starter.
6. Electronic Throttle Control (ETC): Vehicles equipped with electronic throttle control may experience stalling due to the inability to manually adjust the engine’s idle speed.
7. ECM Oil Change Recall: Some users have reported stalling issues after ECM reprogramming and a full synthetic oil change, leading to intermittent loss of power and engine misfire.
8. Ignition Switch Replacement: Stalling issues have persisted even after replacing the ignition switch, indicating that the problem may not be related to this component.
9. Fuel Injection System: Stalling can occur if the fuel injection system allows too much or too little fuel into the combustion chamber, or if it fails to properly atomize the fuel.
It’s important to address stalling issues promptly to ensure the safety and proper functioning of your vehicle. If you’ve already checked the common causes mentioned above and the issue persists, it may be necessary to consult a professional mechanic for a thorough diagnosis and repair.

What causes 2013 Chevy Malibu to stall?

Intake manifold bolts are probably loose causing a vacuum leak. That causes idle issues. Checking fuel trims on a scan tool would help verify that if one knows how to use a scan tool.

Why does my car suddenly stall while driving?

It could be a dead alternator, a bad coolant sensor or lack of fuel, just to name a few. Is your car stalling while accelerating? If so, then it could be a major vacuum leak, clogged fuel filter or a bad fuel pump. If your vehicle is stalling when driving, seek professional help to track down and fix the issue.

What sensor causes a car to stall?

The most common sensor which can lead to your car stalling is the manifold absolute pressure sensor (MAP) or the mass air flow sensor (MAF). Most cars typically have one or the other.

What would cause my car to shut off when I stop?

Usually, if a malfunctioning fuel pump is to blame, your car might shut off temporarily while stopping or slowing down and then turn back on. If the pump isn’t running properly, it might not keep the proper pressure. That means it doesn’t deliver enough gas to the cylinders, and that’s a recipe for car engine troubles.

Why is my 2013 Chevy Malibu sputtering when accelerating?

The most common cause of engine sputtering are issues with the fuel system. These can range from bad fuel filters, fuel pump issues, or fuel injector issues. The other possible source of the problem would be due to poor ignition – think spark plugs or ignition coil problems.

What is the most common problem with Chevy Malibu?

Common Issues with the Chevrolet Malibu
Transmission problems: Some Malibu models have experienced transmission issues, including rough shifting and delayed acceleration. Electrical issues: Some Malibu models have experienced electrical issues, including problems with the power steering system and battery.

Why does my Chevy Malibu turn off when I stop?

When you’re driving and your vehicle comes to a complete stop, Stop/Start Technology (if equipped) may turn off your vehicle’s engine. When this happens, the needle on the tachometer will move to the “Auto Stop” position.

What is the code P0171 on a 2015 Chevy Malibu?

A P0171 code is set by your vehicle’s powertrain control module (PCM) when it detects that the air-to-fuel ratio of your vehicle is too lean. This means that the PCM is relaying that the engine is receiving too much air into the combustion chamber and not enough fuel.

What is the engine problem on a 2013 Chevy Malibu?

The previous Chevy Malibu generation (2013 to 2015) has received complaints about wheel bearing failure, engine stalling, and power steering loss. GM issued a recall for the 2013 Malibu Eco due to a fault with its eAssist mild hybrid system, which could cause the vehicle to stall or have problems starting.

Why is my car shutting off when I stop?

When your engine shuts off when you slow the car down its often as a result of a: Malfunctioning transmission. Low fuel pressure, dirty or defective fuel injectors, or broken fuel pump. Bad oxygen sensor or mass flow sensor.