Your engine relies on a precise mixture of oxygen and fuel in order to generate maximum power efficiency. Ensuring the optimal oxygen-to-fuel ratio of 14.7 to 1 that your engine strives for is your GMC pickup oxygen sensor. You will find your pickup oxygen sensor located near your exhaust manifold, where it serves to measure the amount of oxygen that is in the exhaust leaving your cylinders.

This information is sent to your vehicle’s onboard computer hundreds of times per minute, where it is used to determine how much fuel should be injected into your cylinders. When your GMC pickup oxygen sensor is not working properly, your engine has to rely on other sensors in the network, which can only estimate the oxygen content since they are not located in the direct path of the exhaust.

When this happens, you will end up using too much fuel instead of too little, since not enough fuel can damage your engine. Therefore, a faulty pickup oxygen sensor wastes gas and lowers your fuel economy. Additionally, over time a bad GMC pickup oxygen sensor will damage your catalytic converter due to the excess fuel running through your exhaust system, which causes even more costly repairs. You should replace your pickup oxygen sensor at least every 100,000 miles, and it is a good idea to replace your oxygen sensor whenever you are having other exhaust work done. Find a full line of oxygen sensors here in our online catalogue for less.You can choose from our two convenient ordering options, either through our secure online server or our toll-free customer service number, to have all of your auto parts and accessories delivered right to your door.