2021 Chevrolet Silverado 4500 HD

Introduction: The 2021 Chevrolet Silverado 4500 HD is a heavy-duty pickup truck with a powerful engine and robust build. It comes with a choice of a 6.6L V8 gas engine or a 6.6L Duramax V8 turbo-diesel engine. The V8 gas engine produces 401 horsepower and 464 lb-ft of torque, while the Duramax diesel engine boasts 445 horsepower and 910 lb-ft of torque. Both engines are mated to a 10-speed Allison automatic transmission. The Silverado 4500 HD is praised for its impressive towing and payload capabilities, as well as its comfortable interior and advanced technologies. However, it has also been subject to a handful of issues.

Engine 6.6L V8 Gas Engine

• Intake Manifold Leak:
  • Description/Symptoms: Coolant or oil leaking from the intake manifold, causing engine overheating, decreased performance, and a strong odor.
  • Solution: Replace the intake manifold.
  • Estimated Cost to Fix: $1,000 - $1,500+
  • Recalls: None Found

6.6L Duramax V8 Turbo-Diesel Engine

• Fuel Injector Failure:
  • Description/Symptoms: Difficulty starting the engine, rough idling, reduced power, and black smoke from the exhaust.
  • Solution: Replace the faulty fuel injectors.
  • Estimated Cost to Fix: $500 - $1,000 per injector
  • Recalls: None Found

Transmission 10-Speed Allison Automatic Transmission

• Shifting Issues:
  • Description/Symptoms: Transmission slipping, delayed shifts, or refusing to shift gears.
  • Solution: Replace the transmission control module or reprogram the transmission software.
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: None Found

Suspension Front Suspension:

• Strut Failure:
  • Description/Symptoms: Thumping or clunking noises from the front suspension, reduced handling and stability.
  • Solution: Replace the faulty struts.
  • Estimated Cost to Fix: $500 - $800 per strut
  • Recalls: None Found

Electrical

• Battery Drain:
  • Description/Symptoms: Battery discharging quickly, especially when parked.
  • Solution: Inspect the electrical system for parasitic drains and replace faulty components as needed.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Exterior

• Tailgate Latch Failure:
  • Description/Symptoms: Tailgate not staying closed properly or opening unexpectedly.
  • Solution: Replace the tailgate latch or tailgate latch cable.
  • Estimated Cost to Fix: $200 - $300
  • Recalls: None Found

Interior

• Infotainment System Glitches:
  • Description/Symptoms: Touchscreen not responding, system freezing, or connectivity issues.
  • Solution: Update the infotainment software or replace the infotainment unit if necessary.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Summary: The 2021 Chevrolet Silverado 4500 HD is a capable pickup truck, but it has experienced some issues that can be costly to fix. Engine problems, such as intake manifold leaks and fuel injector failure, have been reported. Transmission shifting issues may also occur. Suspension issues include strut failure, while electrical problems have been limited to battery drain. Exterior issues, such as tailgate latch failure, can be inconvenient. Infotainment system glitches may also occur occasionally.