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2020 GMC Sierra 2500 HD

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By Research the Car 3 min read

2020 GMC Sierra 2500 HD

The 2020 GMC Sierra 2500 HD is a heavy-duty pickup truck with an impressive towing and payload capacity. It offers two engine options: a 6.6-liter V8 gas engine and a 6.6-liter Duramax V8 diesel engine. The gas engine produces 401 horsepower and 464 lb-ft of torque, while the diesel engine generates 445 horsepower and 910 lb-ft of torque. Both engines can be paired with either a 6-speed automatic transmission or a 10-speed automatic transmission.

People who like the Sierra 2500 HD praise its powerful engines, comfortable interior, and advanced technology features. However, some owners have reported issues with the vehicle’s engine, transmission, electrical system, and other components.

Engine

  • 6.6-liter V8 Gas Engine
    • Excessive Oil Consumption
      • Description/Symptoms: The engine consumes excessive amounts of oil, leading to a low oil level warning light and potentially causing engine damage.
      • Solution: Replace the piston rings and valve seals.
      • Estimated Cost to Fix: $2,000 - $3,000+
      • Recalls: None Found
  • 6.6-liter Duramax V8 Diesel Engine
    • Fuel Injector Failure
      • Description/Symptoms: The fuel injectors fail, causing rough idling, reduced power, and increased emissions.
      • Solution: Replace the fuel injectors.
      • Estimated Cost to Fix: $1,500 - $2,500+
      • Recalls: NHTSA Campaign Number 19V550000: Fuel Injectors May Leak
    • Turbocharger Failure
      • Description/Symptoms: The turbocharger fails, resulting in loss of power, excessive smoke, and whistling noises.
      • Solution: Replace the turbocharger.
      • Estimated Cost to Fix: $2,500 - $3,500+
      • Recalls: None Found
    • Exhaust Gas Recirculation (EGR) Valve Failure
      • Description/Symptoms: The EGR valve fails, causing decreased fuel efficiency, poor engine performance, and increased emissions.
      • Solution: Replace the EGR valve.
      • Estimated Cost to Fix: $500 - $1,000+
      • Recalls: NHTSA Campaign Number 20V042000: Exhaust Gas Recirculation (EGR) Valve May Fail

Transmission

  • 6-Speed Automatic Transmission
    • Shifting Problems
      • Description/Symptoms: The transmission shifts roughly or fails to shift properly.
      • Solution: Replace the transmission fluid and filter, or rebuild or replace the transmission.
      • Estimated Cost to Fix: $500 - $3,000+
      • Recalls: None Found
  • 10-Speed Automatic Transmission
    • Shuddering
      • Description/Symptoms: The transmission shudders or vibrates when shifting gears.
      • Solution: Update the transmission software.
      • Estimated Cost to Fix: $100 - $500+
      • Recalls: NHTSA Campaign Number 20V314000: Transmission Software May Cause Shuddering

Suspension

  • Front Suspension
    • Ball Joint Failure
      • Description/Symptoms: The ball joints wear out prematurely, causing clunking noises, steering problems, and uneven tire wear.
      • Solution: Replace the ball joints.
      • Estimated Cost to Fix: $500 - $1,000+
      • Recalls: None Found
  • Rear Suspension
    • Leaf Spring Failure
      • Description/Symptoms: The leaf springs break or sag, causing reduced load capacity, poor handling, and uneven tire wear.
      • Solution: Replace the leaf springs.
      • Estimated Cost to Fix: $500 - $1,000+
      • Recalls: None Found

Electrical

  • Electrical System
    • Battery Drain
      • Description/Symptoms: The battery drains prematurely, leading to difficulty starting the vehicle.
      • Solution: Identify and fix the source of the drain, such as a faulty module or electrical component.
      • Estimated Cost to Fix: $100 - $500+
      • Recalls: None Found
    • Alternator Failure
      • Description/Symptoms: The alternator fails, preventing the battery from recharging.
      • Solution: Replace the alternator.
      • Estimated Cost to Fix: $500 - $800+
      • Recalls: None Found

Exterior

  • Headlights
    • Headlight Failure
      • Description/Symptoms: The headlights fail to illuminate properly or flicker excessively.
      • Solution: Replace the headlight bulbs or assembly.
      • Estimated Cost to Fix: $100 - $500+
      • Recalls: None Found
  • Tailgate
    • Tailgate Latch Failure
      • Description/Symptoms: The tailgate latch fails to engage or release properly.
      • Solution: Replace the tailgate latch.
      • Estimated Cost to Fix: $200 - $500+
      • Recalls: None Found

Interior

  • Dashboard
    • Instrument Cluster Failure
      • Description/Symptoms: The instrument cluster fails to display information or malfunctions.
      • Solution: Replace the instrument cluster.
      • Estimated Cost to Fix: $500 - $1,000+
      • Recalls: None Found
  • Climate Control
    • Climate Control Failure
      • Description/Symptoms: The climate control system fails to regulate temperature or airflow.
      • Solution: Replace the climate control module or associated components.
      • Estimated Cost to Fix: $200 - $700+
      • Recalls: None Found

Summary

The 2020 GMC Sierra 2500 HD has received positive reviews for its performance and capabilities. However, some owners have reported issues with the vehicle’s engine, transmission, electrical system, and other components. The severity and cost of these issues can vary depending on the specific problem. Some issues, such as fuel injector failure or tailgate latch failure, can be relatively minor and inexpensive to fix. However, more serious issues, such as excessive oil consumption or transmission problems, can be more costly and time-consuming to resolve.

GMC, Sierra 2500 HD
GMC Sierra 2500 HD 2020
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