← View Generic P0338 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

P0338: P0338: Ignition System Misfire

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
Your Vehicle
2020 Chevrolet
SILVERADO 1500 PICKUP
⚠️

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 P0338 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

A misfire detected in one or more cylinders, which can cause decreased engine performance, rough idling, and decreased fuel efficiency.
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Symptoms

  • • Rough idling
  • • decreased engine performance
  • • decreased fuel efficiency
  • • engine misfires
  • • and decreased power
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Common Causes

  • • Faulty spark plugs
  • • ignition coils
  • • spark plug wires
  • • fuel injectors
  • • or vacuum leaks
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How to Fix P0338 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and replace spark plugs, ignition coils, and spark plug wires. 2. Check and clean fuel injectors. 3. Check for vacuum leaks and repair if necessary.

🔧

Need Maintenance Info for Your SILVERADO 1500 PICKUP?

Get oil capacity, filter specs, and torque settings for your specific 2020 Chevrolet SILVERADO 1500 PICKUP.

View 2020 Chevrolet SILVERADO 1500 PICKUP Specs

Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

spark plugs Shop ↗ ignition coils Shop ↗ spark plug wires Shop ↗ fuel injectors Shop ↗

Essential Tool

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OBD2 Scanner

Read & clear codes on your 2020 Chevrolet SILVERADO 1500 PICKUP

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Related Diagnostic Codes

Other codes that may appear with P0338

P0336 Sequential Code

P0336: Ignition System Misfire

Medium
P0337 Sequential Code

P0337: Ignition System Misfire

Medium
P0339 Sequential Code

P0339: Ignition System Misfire

Medium
P0340 Sequential Code

Camshaft Position Sensor Circuit Malfunction

High

💡 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