P1117 2000 Ford F150 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 2000 Ford F150 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 2000 Ford F150 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 2000 Ford F150?
- 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 2000 Ford F150?
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 2000 Ford F150 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 2000 Ford F150 Code
1. What does the OBDII code P1117 mean on a 2000 Ford F150?
P1117 indicates an intermittent issue with the Engine Coolant Temperature (ECT) sensor, which monitors the engine's coolant temperature.
2. What are the common symptoms of code P1117 on a 2000 Ford F150?
Symptoms may include engine overheating, poor fuel economy, irregular temperature gauge readings, difficulty starting, or the Check Engine Light turning on.
3. What causes the P1117 code to appear on a 2000 Ford F150?
Common causes include a faulty ECT sensor, damaged wiring or connectors, poor electrical connections, or issues with the vehicle's Powertrain Control Module (PCM).
4. Can a faulty Engine Coolant Temperature sensor affect engine performance?
Yes, an intermittent or faulty ECT sensor can cause incorrect fuel-air mixture adjustments, leading to poor performance, rough idling, and reduced fuel efficiency.
5. How can I diagnose the P1117 code on my Ford F150?
Inspect the ECT sensor and its wiring for damage or loose connections, use a multimeter to test the sensor, and check for any other related trouble codes using an OBDII scanner.
6. Is it safe to drive with the P1117 code on a 2000 Ford F150?
Driving with this code may be unsafe, as it can lead to overheating or engine performance issues. It's best to address the issue promptly.
7. How do I fix the P1117 code on my 2000 Ford F150?
Repairs may include replacing the ECT sensor, repairing or replacing damaged wiring, ensuring proper connections, or updating/replacing the PCM if necessary.
8. Where is the Engine Coolant Temperature sensor located on a 2000 Ford F150?
The ECT sensor is typically located near the thermostat housing or in the engine block, where it can measure coolant temperature effectively.
9. How much does it cost to fix the P1117 code on a Ford F150?
Repair costs vary, but replacing the ECT sensor typically costs $50–$150, including parts and labor. Additional wiring or PCM repairs may increase costs.
10. Can a P1117 code cause my 2000 Ford F150 to overheat?
Yes, if the ECT sensor fails to provide accurate readings, the engine may overheat due to improper cooling system management.
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