Oxygen Sensors 1, 2 Chevrolet Malibu 2.5L 2013-2015 Location and Replacement

In this video, I show you the exact location and the complete step-by-step process to replace both the Upstream (Sensor 1) and Downstream (Sensor 2) Oxygen (O2) Sensors on a 2013-2015 Chevrolet Malibu with the 2.5L engine.

Knowing exactly where these sensors are threaded into the exhaust system and how to safely remove them will save you time and prevent you from damaging the delicate threads on your catalytic converter during this DIY repair.

Common Symptoms of a Bad Oxygen Sensor:

• The check engine light comes on, frequently flagging codes like P0131, P0133, P0137, P0138, or P0141
• A significant drop in fuel economy as the engine control module defaults to running a rich fuel mixture
• A rough engine idle, stumbling, or random engine misfires
• Sluggish engine performance and hesitation during acceleration
• A failed emissions test due to high exhaust gas output or incomplete monitors

Safety First

Always prioritize safety before starting your repair. Because oxygen sensors operate directly inside the exhaust stream, never attempt this job until the engine and exhaust system are completely cold to avoid severe, painful burns. Ensure the vehicle is safely parked on a flat surface, the emergency brake is securely engaged, and the keys are out of the ignition. Always wear safety glasses to protect your eyes from falling rust or debris beneath the vehicle, and wear durable work gloves to protect your hands.

Need Help? Ask an Expert

I am an experienced mechanic, and I am here to help you guide your vehicle projects to a successful finish. If you hit a snag trying to break loose a stubborn, rusted sensor from the exhaust pipe, aren’t sure which specialized O2 sensor socket to use, or are dealing with a tricky breakdown, leave a message in the comments below. Let me know what you are running into, and I will help you solve your car’s problem!