P0116Medium urgency
Engine Coolant Temperature Sensor Range/Performance
Engine · Cooling System
⚠️ Fix soon — incorrect coolant readings affect engine management.
What this means
The ECT sensor signal is within range but not behaving as expected. The temperature reading does not match expected warm-up rates. Causes poor fuel economy and incorrect shift points.
Likely causes
- Faulty coolant temperature sensorMost common
- Air pocket in cooling systemCommon
- Low coolant levelCommon
Estimated repair cost
Coolant temp sensor replacement$75 – $200
Cooling system bleed/refill$50 – $150
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Frequently asked questions
What does P0116 mean?
The ECT sensor signal is within range but not behaving as expected. The temperature reading does not match expected warm-up rates. Causes poor fuel economy and incorrect shift points.
Is P0116 serious?
Fix soon — incorrect coolant readings affect engine management.
How much does it cost to fix P0116?
Repair costs for P0116 range from $75 – $200 depending on the root cause and your vehicle.
Can I drive with P0116?
You can drive short distances but should have it repaired within 1-2 weeks to prevent further damage.