⚡ AUTO CODE FIX
🔍
EngineModerate✅ DIY Friendly

P0116

Engine Coolant Temperature Range/Performance

ECT sensor reading does not match expected values for current engine operating conditions.

SeverityModerate
CategoryEngine
Est. Repair Cost$50–$250
Code TypePowertrain
DIY RepairYes

⚡ Common Causes

⚠️ Symptoms

✅ How to Fix — Step by Step

  • Step 1:Replace thermostat
  • Step 2:Check coolant level
  • Step 3:Bleed cooling system of air pockets
  • Step 4:Replace ECT sensor if thermostat is good
💡 Pro Tip: A stuck-open thermostat is the most common cause — the engine never reaches full operating temperature.

Repair Cost Estimate

Full Repair Estimate
$50–$250
DIY Possible?
YES
Severity
Moderate

Frequently Asked Questions

What does OBD2 code P0116 mean?+
P0116 stands for Engine Coolant Temperature Range/Performance. ECT sensor reading does not match expected values for current engine operating conditions.
What causes code P0116?+
Stuck-open thermostat; Faulty ECT sensor; Low coolant level; Air pocket in cooling system
How do I fix code P0116?+
Replace thermostat; Check coolant level; Bleed cooling system of air pockets; Replace ECT sensor if thermostat is good
How much does it cost to fix P0116?+
Estimated repair cost for P0116 is $50–$250.
Is P0116 DIY-friendly?+
Yes — P0116 is generally DIY-friendly with basic tools.

AI Diagnosis

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