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Posts Tagged: P0135 and cooling fans run all the time

Code P0135 and the Cooling fans runs all the time

Learn how to fix code P0135 and the cooling fans from run all the time If you own a Ford Escort or Mercury tracer and encounter a situation where you have a code P0135 and the cooling fans run all the time, you may have a shorted oxygen sensor. The official definition of a P0135 is Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1). That’s the sensor before the catalytic converter. Oxygen sensors have a heating element to speed up their ability to sense oxygen in the exhaust stream. … Read More


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