P1117 2007 Ford Fusion Code - Engine Coolant Temperature Sensor Intermittent
Quick Answer
The Engine Coolant Temperature (ECT) Sensor is a thermistor device in which resistance changes with temperature. Common causes include Low Engine Coolant Level, Faulty Engine Coolant Temperature (ECT) sensor, Engine Coolant Temperature (ECT) sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1117 2007 Ford Fusion indicates Engine Coolant Temperature Sensor Intermittent.
- Common causes
- Common causes include Low Engine Coolant Level, Faulty Engine Coolant Temperature (ECT) sensor, Engine Coolant Temperature (ECT) sensor harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1117 2007 Ford Fusion Description
Thermistor-type sensors are considered passive sensors. A passive sensor is connected to a voltage divider network so varying the resistance of the passive sensor causes a variation in total current flow. Voltage that is dropped across a fixed resistor (pull-up resister) in series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.
The ECT measures the temperature of the engine coolant. The PCM uses the ECT input for fuel control and for cooling fan control. There are 3 types of ECT sensors; threaded, push-in, and twist-lock. The ECT sensor is located in an engine coolant passage.
What are the Possible Causes of the DTC P1117 2007 Ford Fusion?
- Low Engine Coolant Level
- Faulty Engine Coolant Temperature (ECT) sensor
- Engine Coolant Temperature (ECT) sensor harness is open or shorted
- Engine Coolant Temperature (ECT) sensor electrical circuit poor connection
- Faulty Engine Coolant Thermostat
- Damaged Powertrain Control Module (PCM)
How to Fix the DTC P1117 2007 Ford Fusion?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1117 2007 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1117 2007 Ford Fusion Code
1. What does OBDII code P1117 on a 2007 Ford Fusion mean?
The code P1117 indicates an intermittent issue with the Engine Coolant Temperature (ECT) Sensor.
2. What are the common symptoms of an Engine Coolant Temperature Sensor Intermittent problem?
Common symptoms include erratic temperature readings on the dashboard, engine overheating, poor fuel efficiency, and potential stalling or rough idling.
3. What are the possible causes of the P1117 trouble code on a 2007 Ford Fusion?
Potential causes include a faulty ECT sensor, loose or corroded electrical connections, wiring issues, or a problem with the engine's cooling system.
4. How can I diagnose the Engine Coolant Temperature Sensor Intermittent issue on my 2007 Ford Fusion?
You can diagnose the problem by checking the ECT sensor's electrical connections, inspecting the sensor for physical damage, and using a multimeter to test its resistance when the engine is cold and hot.
5. Can I continue to drive my Ford Fusion with the P1117 trouble code?
It is not recommended to drive your vehicle with an intermittent ECT sensor issue, as it can lead to engine overheating and potential damage. It's best to address the problem promptly.
6. How can I repair the Engine Coolant Temperature Sensor Intermittent problem on my 2007 Ford Fusion?
Repair options may include replacing the ECT sensor, repairing or replacing damaged wiring, cleaning electrical connections, and ensuring proper coolant levels and system functionality.
7. Will resetting the trouble code make the issue go away permanently?
Resetting the trouble code may temporarily clear the check engine light, but if the underlying problem with the ECT sensor persists, the code is likely to return. It's important to address the root cause of the issue.
8. Can a DIY enthusiast fix the P1117 trouble code on a 2007 Ford Fusion?
Depending on your skill level and access to tools, DIY enthusiasts may be able to diagnose and repair the ECT sensor issue. However, if you're unsure or unfamiliar with automotive repairs, it's best to consult a professional mechanic.
9. How much does it typically cost to fix the Engine Coolant Temperature Sensor Intermittent problem on a 2007 Ford Fusion?
The cost of repairing the issue can vary depending on the root cause, parts needed, and labor costs. In general, replacing an ECT sensor can range from $50 to $200, while professional labor costs may add to the total repair bill.
10. Will a faulty Engine Coolant Temperature Sensor affect my Ford Fusion's performance?
Yes, a faulty ECT sensor can impact your vehicle's performance by causing engine overheating, reduced fuel efficiency, and potential drivability issues. It's essential to address the problem to maintain optimal performance and prevent further damage.
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