OEM GM Oxygen Sensors

19316367 - : Engine Camshaft Position Sensor for GM Image

Engine Camshaft Position Sensor

City Express. Helps keep engine timing and fuel injection running in sync Helps provide proper alignment, positioning, and spacing for...
$102.89
MSRP $137.18
Save $34.29
25% Off
12581888 - : Air Intake Temp Sensor for GM Image

Air Intake Temp Sensor

Vue. 3.5l. At manifold.
$16.47
MSRP $24.40
Save $7.93
32.5% Off
25181969 - : Engine Coolant Temperature Sensor for GM Image

Engine Coolant Temperature Sensor

Without ev. Helps keep engine running at proper temperature Alerts vehicle operator of high engine temperature conditions
$18.02
MSRP $26.70
Save $8.68
32.5% Off
22741800 - : Accelerator Pedal with Sensor for GM Image

Accelerator Pedal with Sensor

Camaro. With performance package. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...
$107.51
MSRP $172.00
Save $64.49
37.5% Off
25037333 - : Engine Coolant Temperature Sensor for GM Image

Engine Coolant Temperature Sensor

Sender. All. 7.4l. Helps keep engine running at proper temperature Alerts vehicle operator of high engine temperature conditions
$46.62
MSRP $71.72
Save $25.10
35% Off
13540605 - : Tire Pressure Indicator Sensor for GM Image

Tire Pressure Indicator Sensor

Tire Pressure Monitor. Battery is made to last up to 10 years of normal use Designed to communicate perfectly with your GM vehicle's...
$45.19
MSRP $69.52
Save $24.33
35% Off
12623095 - : Ignition Knock (Detonation) Sensor for GM Image

Ignition Knock (Detonation) Sensor

Sends signals to the engine control module (ECM) to adjust timing Helps prevent damage to the engine caused by pre-ignition
$29.95
MSRP $46.08
Save $16.13
35% Off
20842671 - : Airbag Vehicle Rollover Sensor for GM Image

Airbag Vehicle Rollover Sensor

Vehicle rollover sensor. Hummer H3. All. This part requires programming and/or special setup procedures GM Service Information describes...
$206.47
MSRP $285.62
Save $79.15
27.7% Off
55566146 - : Engine Coolant Temperature Sensor for GM Image

Engine Coolant Temperature Sensor

With diesel, egr valve & related components. Helps keep engine running at proper temperature Alerts vehicle operator of high engine...
$41.59
MSRP $63.98
Save $22.39
35% Off
25037332 - : Engine Coolant Temperature Sensor for GM Image

Engine Coolant Temperature Sensor

Helps keep engine running at proper temperature Alerts vehicle operator of high engine temperature conditions
Discontinued
12601098 - : Engine Camshaft Position Sensor for GM Image

Engine Camshaft Position Sensor

DTS. 4.6L. 3.9L. Helps keep engine timing and fuel injection running in sync Helps provide proper alignment, positioning, and spacing...
$58.54
MSRP $90.06
Save $31.52
35% Off
84983781 - : Pedestrian Impact Detection Sensor for GM Image

Pedestrian Impact Detection Sensor

2016-18, pededstrian alert.
$152.99
MSRP $212.49
Save $59.50
28% Off

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How Oxygen Sensors Work in Your Chevrolet Blazer

Oxygen sensors are critical to properly operating your Chevrolet Blazer. These little but crucial components monitor the oxygen in your vehicle's exhaust gasses, ensuring that your engine operates effectively and emits fewer pollutants. Without functional oxygen sensors, your vehicle may experience lower fuel economy, higher emissions, and even engine damage. Regular maintenance or replacement of malfunctioning sensors may save you money at the gas pump while also extending the life of your engine. Furthermore, oxygen sensors help your car comply with environmental requirements, making them necessary for performance and sustainability.

Importance of Oxygen Sensors

Oxygen sensors are critical to keeping your Chevrolet Blazer's engine running properly. They are located in the exhaust system and measure the oxygen levels in the exhaust gases before and after combustion. These readings are communicated to your car's computer, which uses them to modify the air-to-fuel ratio for more efficient combustion. Properly working sensors guarantee that your vehicle works smoothly, boosting fuel efficiency and lowering hazardous emissions. Furthermore, oxygen sensors detect and notify any faults in the exhaust system, allowing you to address possible issues before they become more serious. Regular maintenance or timely replacement may improve engine performance and fuel economy while lowering environmental impact.

How Do Oxygen Sensors Work

Oxygen sensors are positioned in your Blazer's exhaust manifold and catalytic converter and continually check exhaust gasses' oxygen level. These sensors create a voltage signal proportional to the engine's air-to-fuel ratio. When the mixture becomes too rich (excess fuel) or too lean (excess oxygen), the sensors alert the vehicle's engine control unit (ECU), which adjusts the fuel injection appropriately. This continual feedback loop keeps the engine running efficiently while reducing fuel consumption and pollution. The smooth operation of oxygen sensors is critical to improving engine efficiency and lowering pollution emissions.

Signs of Faulty Oxygen Sensors

Faulty oxygen sensors can cause various problems with your Chevrolet Blazer. The illuminated "Check Engine" light is one of the first failure symptoms. Furthermore, you may notice a considerable drop in fuel efficiency, harsh engine idle, and even difficulties starting the vehicle. As the sensors degrade, they may produce false readings, forcing the ECU to inject the incorrect quantity of gasoline, resulting in poor engine performance. In rare situations, defective sensors might cause the vehicle to fail emissions tests since they control the discharge of dangerous gases. Timely sensor replacement might help to prevent these problems and maintain your car in good condition.

Advantages of Replacing Oxygen Sensors

Replacing worn-out oxygen sensors benefits your Chevrolet Blazer. New sensors increase fuel economy by ensuring the engine obtains the proper air-to-fuel ratio, reducing fuel use. It also helps to reduce the vehicle's emissions, which is good for the environment and can assist in passing emissions testing. Improved engine performance is another benefit since defective sensors can cause poor acceleration, stalling, and harsh idling. Finally, replacing sensors on time increases the overall life of your vehicle's engine, avoiding costly repairs caused by increased fuel use or exhaust system damage.

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