← View Generic P0118 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

P0118: Engine Coolant Temperature Sensor Circuit High Input

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost

$20 - $150

Parts & Labor

Difficulty

2/5

1-2 hours

DIY Possible?

✅ Yes

Save money

Your Vehicle

2020 Chevrolet

SILVERADO 1500 PICKUP

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Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners

Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P0118 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The engine coolant temperature sensor is reading extremely low temperature (high resistance = low temp).

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Symptoms

• Temperature gauge reading cold
• poor heater performance
• lean fuel mixture
• hard starting when warm.

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Common Causes

• Faulty coolant temperature sensor
• open circuit in wiring
• poor connections
• thermostat stuck open.

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How to Fix P0118 on 2020 Chevrolet SILVERADO 1500 PICKUP

Replace coolant temperature sensor, repair open circuits, clean connections, check thermostat operation.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

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Related Diagnostic Codes

Other codes that may appear with P0118

P0116 Sequential Code

💡 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