2021 Volvo VNX

2021 Volvo VNX

The 2021 Volvo VNX is a heavy-duty truck available in various configurations, including day cab, sleeper cab, and vocational models. Three engine options are available: a 13-liter D13 engine with Volvo’s GHS2 or D13TC engine with VGT, and a 16-liter D16 engine with Volvo’s GHS2. Transmission options include the Volvo I-Shift Automated Manual Transmission (AMT) with 12 speeds or 14 speeds, and the Eaton Fuller Advantage Automated Manual Transmission (AMT) with 10 speeds or 13 speeds. The VNX is praised for its powerful engines, comfortable cab, and advanced safety features. However, it has also been reported to have some issues.

Engine

• D13TC Engine with VGT
  • Turbocharger Failure
    • Description/Symptoms: Whistling or whining noise from the engine, reduced power, smoke from the exhaust
    • Solution: Replace the turbocharger
    • Estimated Cost to Fix: $2,000 - $3,000+
    • Recalls: None Found
• D16 Engine with GHS2
  • Fuel Injector Problems
    • Description/Symptoms: Engine misfiring, rough idling, reduced power, increased fuel consumption
    • Solution: Replace the faulty fuel injector(s)
    • Estimated Cost to Fix: $500 - $1,000+ per injector
    • Recalls: None Found
  • EGR Valve Issues
    • Description/Symptoms: Increased exhaust emissions, reduced fuel efficiency, engine overheating
    • Solution: Clean or replace the EGR valve
    • Estimated Cost to Fix: $200 - $500+
    • Recalls: None Found

Transmission

• I-Shift AMT
  • Shifting Problems
    • Description/Symptoms: Difficulty shifting gears, delayed shifts, grinding noises
    • Solution: Reprogram the transmission control module (TCM) or replace the TCM
    • Estimated Cost to Fix: $500 - $1,500+
    • Recalls: None Found
• Eaton Fuller Advantage AMT
  • Clutch Probleme
    • Description/Symptoms: Slipping clutch, difficulty engaging gears, shuddering
    • Solution: Replace the clutch disc and pressure plate
    • Estimated Cost to Fix: $1,500 - $2,500+
    • Recalls: None Found

Suspension

• Front Suspension
  • Leaf Spring Breakage
    • Description/Symptoms: Sagging front end, uneven tire wear, clunking noises
    • Solution: Replace the broken leaf spring(s)
    • Estimated Cost to Fix: $500 - $1,000+ per leaf spring
    • Recalls: None Found
• Rear Suspension
  • Airbag Leaks
    • Description/Symptoms: Truck leaning to one side, excessive ride height, audible air leak
    • Solution: Repair or replace the leaking airbag(s)
    • Estimated Cost to Fix: $200 - $500+ per airbag
    • Recalls: None Found

Electrical

• Battery Drainage
  • Description/Symptoms: Battery fails to start the truck after a period of inactivity
  • Solution: Test the electrical system for parasitic draw and repair or replace the faulty component(s)
  • Estimated Cost to Fix: $100 - $500+
    • Recalls: None Found
• Alternator Failure
  • Description/Symptoms: Battery warning light comes on, dimming headlights, voltage gauge reading low
  • Solution: Replace the alternator
  • Estimated Cost to Fix: $500 - $1,000+
    • Recalls: None Found

Exterior

• Windshield Cracking
  • Description/Symptoms: Cracks or chips on the windshield
  • Solution: Replace the windshield
  • Estimated Cost to Fix: $200 - $500+
    • Recalls: None Found
• Rearview Mirror Vibration
  • Description/Symptoms: Rearview mirror vibrates excessively, making it difficult to see behind the truck
  • Solution: Tighten or replace the rearview mirror mount
  • Estimated Cost to Fix: $50 - $100+
    • Recalls: None Found

Interior

• Dashboard Squeaks and Rattles
  • Description/Symptoms: Noises from the dashboard, especially when driving on rough roads
  • Solution: Tighten loose panels or apply damping material
  • Estimated Cost to Fix: $100 - $200+
    • Recalls: None Found
• Seat Cover Tearing
  • Description/Symptoms: Tears or rips in the seat covering
  • Solution: Repair or replace the seat cover
  • Estimated Cost to Fix: $200 - $500+
    • Recalls: None Found

Summary

The 2021 Volvo VNX is a capable heavy-duty truck with some reliability issues that can be costly to repair. Engine problems, particularly with the D13TC engine and D16 engine, include turbocharger failure, fuel injector issues, and EGR valve problems. Transmission issues, including shifting problems with the I-Shift AMT and clutch problems with the Eaton Fuller Advantage AMT, can also be encountered. Suspension issues include leaf spring breakage and airbag leaks. Electrical issues such as battery drainage and alternator failure can occur. While interior issues like dashboard squeaks and seat cover tearing are less severe, they can still be frustrating for drivers. It’s important to note that not all VNX models will experience these issues, and the severity and cost of repairs can vary depending on the specific issue and the extent of the damage.