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What causes the P0128 code to appear in a Ford Focus?
The P0128 code is a diagnostic trouble code that indicates a problem with the engine coolant temperature (ECT) being below the thermostat regulating temperature. This code may appear in a Ford Focus due to the following reasons: a. Faulty thermostat: A malfunctioning thermostat may not open properly, causing the engine to run cooler than it should. b. Faulty ECT sensor: A malfunctioning ECT sensor can provide incorrect temperature readings, triggering the P0128 code. c. Low coolant level: If the coolant level is low, it may not adequately circulate through the engine, causing a lower temperature reading. d. Cooling system issues: A damaged radiator, water pump, or cooling fan can affect the engine's cooling efficiency, leading to the P0128 code. e. Engine control module (ECM) issues: In rare cases, a faulty ECM may incorrectly interpret the ECT sensor's input, causing the P0128 code.
What Others are Asking
What is the meaning of OBD-II code P0132, and what are the possible causes and solutions for this code?
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Why is there a grinding noise in the brakes even after replacing the brake pads, rotors, and calipers?
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