ECT Sensor Out of Self-Test Range
2003-2005 Ford Excursion 6.0L V8 Power Stroke Diesel
Description
The Engine Coolant Temperature sensor reading is outside the expected range during the KOEO or KOER self-test. The engine may not be at the required operating temperature when the test was run.
Symptoms
- Check Engine Light
- Poor fuel economy
- Running rich when warm
- Fan may run continuously
Common Causes
- Engine not fully warmed up during test
- Faulty ECT sensor
- Thermostat stuck open
- Cooling system issue
- Wiring problem
Diagnostic Steps
- Ensure engine reaches full operating temperature before running self-test
- Compare ECT reading to actual coolant temperature with infrared thermometer
- Test ECT sensor resistance vs temperature specifications
- Check thermostat operation
- Inspect wiring and connector
Repair Notes
Warm engine fully before self-test. Replace ECT sensor or thermostat if faulty.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1116 on Other Vehicles
Common Questions
What does code P1116 mean on a 2003-2005 Ford Excursion?
P1116 stands for "ECT Sensor Out of Self-Test Range". The Engine Coolant Temperature sensor reading is outside the expected range during the KOEO or KOER self-test. The engine may not be at the required operating temperature when the test was run.
What are the symptoms of P1116 on a Ford Excursion?
Common symptoms of P1116 include: Check Engine Light, Poor fuel economy, Running rich when warm, Fan may run continuously.
What causes P1116 on a 2003-2005 Ford Excursion?
Common causes of P1116 include: Engine not fully warmed up during test, Faulty ECT sensor, Thermostat stuck open, Cooling system issue, Wiring problem.