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P0118
2004 ford ranger

(2004 Ford Ranger)
in Palmer, AK on March 16, 2014
2004 ford ranger p0118
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Popular Answer
of G. T. Service Center on March 16, 2014
Engine coolant sensor circuit high input, possible corrosion on connector or bad connection.
on March 16, 2014
Damaged sensor
Most likely a bad ECT sensor, but it requires diagnosis. The code is only telling you that at some point the PCM got a faulty reading on the ECT circuit. You need to find out what part of the circuit caused that reading, it could be the sensor, the connector at the sensor, the wiring between the sensor and the PCM, or the PCM itself.
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