2018 GMC Sierra 2500 HD

Introduction

The 2018 GMC Sierra 2500 HD is a heavy-duty pickup truck offered with several engine and transmission options. The 6.6L Duramax diesel V8 engine produces 445 horsepower and 910 lb-ft of torque, while the 6.0L gasoline V8 engine generates 360 horsepower and 380 lb-ft of torque. Transmission options include a 6-speed automatic and a 10-speed automatic. The Sierra 2500 HD is known for its powerful engines, spacious interior, and towing capabilities. However, it has also been plagued by several issues.

Engine

6.6L Duramax Diesel V8

• Fuel Injector Failure
  • Description/Symptoms: Rough idling, poor acceleration, black smoke from exhaust.
  • Solution: Replacing the fuel injectors.
  • Estimated Cost to Fix: $1000 - $2000
  • Recalls: None Found
• Turbocharger Failure
  • Description/Symptoms: Loss of power, increased exhaust smoke.
  • Solution: Replacing the turbocharger.
  • Estimated Cost to Fix: $2500 - $3500
  • Recalls: None Found
• Emission Control System Issues
  • Description/Symptoms: Check engine light, reduced engine performance.
  • Solution: Repairing or replacing emission control components.
  • Estimated Cost to Fix: $500 - $1500+
  • Recalls: NHTSA Campaign Number: 21V286000, 21V287000

6.0L Gasoline V8

• Cylinder Deactivation System Failure
  • Description/Symptoms: Rough idling, misfires.
  • Solution: Disabling the cylinder deactivation system.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found
• Spark Plug Failure
  • Description/Symptoms: Misfires, rough running.
  • Solution: Replacing the spark plugs.
  • Estimated Cost to Fix: $150 - $300
  • Recalls: None Found

Transmission

6-Speed Automatic Transmission

• Shifting Problems
  • Description/Symptoms: Delayed or hard shifting, slipping gears.
  • Solution: Repairing or replacing the transmission.
  • Estimated Cost to Fix: $3000 - $5000+
  • Recalls: None Found
• Fluid Leaks
  • Description/Symptoms: Visible fluid leaks from the transmission.
  • Solution: Replacing the leaking components.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found

10-Speed Automatic Transmission

• No Issues Found

Suspension

• Leaf Spring Failure
  • Description/Symptoms: Broken or saggy leaf springs.
  • Solution: Replacing the leaf springs.
  • Estimated Cost to Fix: $500 - $1000
  • Recalls: None Found
• Shock Absorber Failure
  • Description/Symptoms: Rough ride, increased body roll.
  • Solution: Replacing the shock absorbers.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Electrical

• Battery Problems
  • Description/Symptoms: Dead battery, slow cranking.
  • Solution: Replacing the battery.
  • Estimated Cost to Fix: $150 - $300
  • Recalls: None Found
• Alternator Failure
  • Description/Symptoms: Dim headlights, insufficient charging.
  • Solution: Replacing the alternator.
  • Estimated Cost to Fix: $500 - $800
  • Recalls: None Found

Exterior

• Tailgate Issues
  • Description/Symptoms: Inoperative or misaligned tailgate.
  • Solution: Repairing or replacing the tailgate hardware.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found
• Rust on Frame
  • Description/Symptoms: Visible rust on the frame.
  • Solution: Rustproofing the frame.
  • Estimated Cost to Fix: $300 - $1000+
  • Recalls: None Found

Interior

• Dashboard Cracks
  • Description/Symptoms: Cracks or breaks in the dashboard.
  • Solution: Replacing the dashboard.
  • Estimated Cost to Fix: $500 - $1200+
  • Recalls: None Found
• Climate Control Problems
  • Description/Symptoms: Inoperative air conditioning or heater.
  • Solution: Repairing or replacing climate control components.
  • Estimated Cost to Fix: $200 - $800
  • Recalls: None Found

Summary

The 2018 GMC Sierra 2500 HD is a capable heavy-duty pickup truck, but it is not without its issues. Engine problems, particularly with the Duramax diesel engine, are a common occurrence. Transmission issues, suspension failures, and electrical problems are also reported. While the severity and cost of these issues can vary, some can be significant and require costly repairs. It is important for potential buyers to be aware of these potential issues before purchasing a Sierra 2500 HD and to factor in the potential cost of repairs.