← View Generic P0373 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

P0373: P0373: 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 P0373 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

A misfire detected in one or more cylinders, affecting combustion efficiency, 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
  • • decreased power
  • • and decreased acceleration.
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Common Causes

  • • Faulty spark plugs
  • • ignition coils
  • • fuel injectors
  • • vacuum leaks
  • • faulty crankshaft or camshaft position sensors
  • • and faulty ignition module.
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How to Fix P0373 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and replace spark plugs if necessary. 2. Check and replace ignition coils if necessary. 3. Check and clean fuel injectors if necessary. 4. Check for vacuum leaks and repair if necessary. 5. Check and replace crankshaft or camshaft position sensors if necessary. 6. Check and replace ignition module if necessary.

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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 ↗ fuel injectors Shop ↗ vacuum leak repair kit Shop ↗ crankshaft or camshaft position sensors Shop ↗ ignition module Shop ↗

Essential Tool

Must Have

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 P0373

P0371 Sequential Code

P0371: Ignition System Misfire

Medium
P0372 Sequential Code

P0372: Ignition System Misfire

Medium
P0374 Sequential Code

P0374: Ignition System Misfire

Medium
P0375 Sequential Code

P0375: Ignition System Misfire

Medium

💡 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