Code P0128

2005 FORD ESCAPE
220,000 MILES • 6 CYL • 4WD • AUTOMATIC
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BOBBY85
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  • 2 POSTS
Engine not reaching its operating temperature. The radiator fan runs as soon as I start the car and stays on. I replaced the thermostat and sealed a leak in the cooling system. The error comes back on. The next thing I thought of was the coolant temperature sensor but that one seems to be fairly new, probably replaced by previous owner. The only thing left I can think off is the cylinder temperature sensor. any other suggestions?
Jan 14, 2020 at 5:28 PM
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SCGRANTURISMO
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  • 4,897 POSTS
Hello,

Please answer the question that is in the diagrams down below and get back to us with the answer and we will go from there.

Thanks,
Alex
2CarPros
Jan 14, 2020 at 8:54 PM
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BOBBY85
  • MEMBER
  • 2 POSTS
Sorry, I cannot see any questions in the diagram. what is the question?
Jan 16, 2020 at 5:42 AM
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SCGRANTURISMO
  • CERTIFIED EXPERT
  • 4,897 POSTS
Hello again,

Does your vehicle have a Cylinder Head Temperature sensor[CHT] or a Engine Coolant Temperature sensor[ECT] or does it have both?

Thanks,
Alex
2CarPros
Jan 16, 2020 at 10:04 AM