2001 Expedition with SES light
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2001 Expedition with SES light
My Service engine Soon light is on and the code is PO135. They tell me the code is for an O2 sensor, Bank 1, Sensor 1 and is located on the passenger side on the exhaust manifold. How difficult are these O2 sensors to replace? They look to me like a standard spark plug with a long plug in on the other end. Anybody know what a mechanic would charge to do this job? Thanks guys.
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