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E-250 4.2L Engine Coolant Temperature Sensor Reading 12V Instead of 5V

Model: E-250 Fault Code: P2177 Posted: 2017-03-17 15:34

The wire connected to the coolant temperature sensor on my E-250 with a 4.2L engine is reading 12 volts instead of the expected 5 volts. This could indicate a faulty sensor or wiring issue affecting engine performance and fault detection.

Related fault codes

P2177

Comments (2)

Anonymous 2017-03-17 16:17

Could you please specify the model year of your E-250? Are any diagnostic trouble codes (DTCs) being displayed in the vehicle's OBD-II system?

Anonymous 2017-03-18 09:18

Which specific fault code are you currently troubleshooting? Where exactly is the coolant temperature sensor located, and which type of sensor are you testing — ECT (Engine Coolant Temperature) or CHT (Cylinder Head Temperature)? The 4.2L engine has multiple sensor configurations, so this detail is critical for accurate diagnosis.