Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2007ESCAPE BASE, 2.3 Z, FWD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - POWERTRAIN DTC CHARTS AND DESCRIPTIONS (EXCEPT DIESEL & HYBRID)DTC DIAGNOSISP128A - CYLINDER HEAD TEMPERATURE (CHT) SENSOR CIRCUIT INTERMITTENT/ERRATIC
2007 Ford Escape Base, 2.3 Z, FWD, Automatic
P128A - Cylinder Head Temperature (CHT) Sensor Circuit Intermittent/Erratic
2007 Ford Escape Base, 2.3 Z, FWD, AutomaticSECTION P128A - Cylinder Head Temperature (CHT) Sensor Circuit Intermittent/Erratic
P128A - CYLINDER HEAD TEMPERATURE (CHT) SENSOR CIRCUIT INTERMITTENT/ERRATIC
| Description: | Indicates the CHT circuit became intermittently open or shorted while the engine was running. | |||
| Possible Causes: |
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| Diagnostic Aids: | Monitor the CHT on a scan tool. Look for sudden changes in the reading when the harness is wiggled or the sensor is tapped. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | - | - | refer to PINPOINT TEST DL . | |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.