In order to generate the power your vehicle needs, your engine relies on a mixture of oxygen and fuel that is ignited in your combustion cylinders. Most engines strive for an optimal mix of 14.7 parts oxygen to 1 part fuel. In order to obtain this ratio, your vehicle’s onboard computer relies on information it receives from your Chevrolet truck oxygen sensor.

You will find your truck oxygen sensor located near your exhaust manifold, where its only purpose is to measure the oxygen content of the exhaust leaving your cylinders. The oxygen sensor performs this function hundreds of times per minute.

The data recorded by the Chevrolet truck oxygen sensor allows your vehicle’s computer to figure out how much fuel should be injected into your cylinders. Unfortunately, if your truck oxygen sensor is not working, your engine has to rely on inaccurate measurements from other sensors that are not in the direct path of the exhaust. Without accurate information, too much fuel is usually injected, because too little fuel can damage your engine. Not only does a faulty Chevrolet truck oxygen sensor waste gas, it also presents the potential for more expensive damage, since excess fuel in your exhaust will damage your catalytic converter over time. It can be hard to detect a bad truck oxygen sensor, but there are many things that can cause your oxygen sensor to fail, such as contamination from engine oil, coolant, fuel additives, or gasket sealant. You should replace your truck oxygen sensor whenever you have exhaust work done, or when a diagnostics or emissions test indicates a problem.You’ll find a full line of replacement oxygen sensors in our vast and easy to search online catalogue.