Is your engine surging or hesitating? Your problem could very well be your Jeep Grand Cherokee oxygen sensor. An oxygen sensor is a small electronic device that is part of the exhaust system that measures the proportion of oxygen in the gas that is in your internal combustion engine. It then feeds the information to the computerized Electronic Control Unit (ECU) which in turn is able to control the efficiency of the combustion process.

The Jeep Grand Cherokee oxygen sensor helps to determine if the fuel is too rich or not rich enough. A fuel that is too rich means that it contains too much fuel.

A fuel that is no rich enough means that there is too much oxygen. Fuel that is not stable can cause damage to the catalytic converter and can lead to costly repairs. When the oxygen sensor is doing its job properly, you get the best fuel economy possible, and the smallest amount of exhaust emissions possible. This one part could improve your gas mileage by as much as 10 to 15 percent. Depending on the year that your particular Grand Cherokee was made determines how frequently the oxygen sensor should be replaced. For those that have an unheated sensor in a vehicle made between 1976 and the early 1990s, it should be replaced every 30,000 to 50,000 miles. For vehicles with a heated sensor made between the mid 1980s and the mid 1990s, change it every 60,000 miles. For heated sensor vehicles made after the mid 1990s, replace it every 100,000 miles. If your Jeep Grand Cherokee oxygen sensor is replaced according to the given schedule, it will save you money in the long run by saving fuel, and keeping other exhaust parts in working condition.If it is time for you to replace your Jeep Grand Cherokee oxygen sensor, let us help you.