📖 What Does P0118 Mean?
Symptoms
- • Temperature gauge reading cold
- • poor heater performance
- • lean fuel mixture
- • hard starting when warm.
Common Causes
- • Faulty coolant temperature sensor
- • open circuit in wiring
- • poor connections
- • thermostat stuck open.
Possible Solutions
Replace coolant temperature sensor, repair open circuits, clean connections, check thermostat operation.
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❓ Common Questions About P0118
Can I drive with code P0118?
You can drive for a short time, but should address code P0118 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix P0118?
The estimated repair cost for code P0118 is between $20 and $150. This includes parts and labor for most makes and models.
Is this code easy to fix myself?
Yes, this is often a DIY-friendly repair. With basic tools and the correct part, many owners can resolve this themselves in under an hour.
Required Parts
Recommended Tools
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View Best Sellers ↗Related Diagnostic Codes
Other codes that may appear with P0118
Engine Coolant Temperature Sensor Range/Performance Problem
Engine Coolant Temperature Sensor Circuit Low Input
P0119: Fuel Temperature Sensor Circuit Malfunction
Throttle Position Sensor Circuit Malfunction
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system