Don't let failing oxygen sensors compromise your engine's performance. O2 sensors are critical to emissions control on your car, SUV or truck. As the name implies, the O2 sensor (also called an ...
Q–I have a 1990 Ford Aerostar with 79,000 miles. I noticed that the gas mileage has gone down some. I read that the oxygen sensor should be replaced. There are several manufacturers as well as prices ...
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