2004 ford ranger p0118
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2004 Ford Ranger Question: p0118 2004 ford ranger
Answer #1G. T. Service Center (4243 Answers) , Stephenville, TX - (254) 638-3236ProfessorG March 16, 2014, 22:47Master
Engine coolant sensor circuit high input, possible corrosion on connector or bad connection.
Answer #2Action702 March 17, 2014, 01:53Journeyman
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.