2016 Volvo VNL 670

Introduction:
The 2016 Volvo VNL 670 is a heavy-duty truck with a powerful yet fuel-efficient engine. It is available with several engine options, including the D11 and D13, and transmission options such as the I-Shift automated manual transmission. The VNL 670 is known for its reliability, comfort, and safety features, but it has some common issues that owners should be aware of.

Engine:
D11 350

• Fuel Injector Failure: Description/Symptoms: Leaking fuel injectors can cause poor fuel economy, rough idling, and reduced engine power. Solution: Replace the fuel injectors. Estimated Cost to Fix: $1000 - $2000. Recalls: None Found
• Turbocharger Failure: Description/Symptoms: The turbocharger can fail prematurely due to excessive heat, resulting in reduced engine power and black smoke from the exhaust. Solution: Replace the turbocharger. Estimated Cost to Fix: $2500 - $4000. Recalls: None Found
  D13 350
• Diesel Particulate Filter (DPF) Plugging: Description/Symptoms: The DPF can become clogged with soot over time, leading to a loss of engine power and an increase in fuel consumption. Solution: Clean or replace the DPF. Estimated Cost to Fix: $500 - $2000. Recalls: None Found
• Exhaust Gas Recirculation (EGR) Valve Failure: Description/Symptoms: A faulty EGR valve can cause decreased engine performance, increased emissions, and poor fuel economy. Solution: Replace the EGR valve. Estimated Cost to Fix: $500 - $1000. Recalls: 19V-169
  Transmission:
  I-Shift
• Shifting Problems: Description/Symptoms: The transmission may hesitate or jerk when shifting gears. This can be caused by a faulty TCM (Transmission Control Module) or a problem with the transmission’s mechanical components. Solution: Repair or replace the TCM or the transmission. Estimated Cost to Fix: $1500 - $5000. Recalls: None Found
• Transmission Fluid Leak: Description/Symptoms: A leak in the transmission fluid lines or seals can cause the transmission to slip or overheat. Solution: Repair the leak and replace the lost fluid. Estimated Cost to Fix: $200 - $1000. Recalls: None Found

Suspension:

• Leaf Spring Breakage: Description/Symptoms: The leaf springs can break under heavy loads, causing the truck to sag or lean to one side. Solution: Replace the broken leaf springs. Estimated Cost to Fix: $500 - $1500. Recalls: None Found
• Air Suspension Failure: Description/Symptoms: The air suspension system can fail due to a leak in the air lines or a malfunctioning compressor. This can cause the truck to ride low or bounce excessively. Solution: Repair the leak or replace the compressor. Estimated Cost to Fix: $500 - $2000. Recalls: None Found
  Electrical:
• Battery Drain: Description/Symptoms: The battery can drain quickly even when the truck is parked. This can be caused by a faulty alternator, a parasitic draw, or a problem with the battery itself. Solution: Test the electrical system to identify the cause of the drain and repair or replace the faulty component. Estimated Cost to Fix: $100 - $500. Recalls: None Found
• Wiring Harness Problems: Description/Symptoms: Wiring harnesses can become damaged due to chafing or exposure to the elements, leading to electrical problems such as lights not working or gauges not reading correctly. Solution: Repair or replace the damaged wiring harness. Estimated Cost to Fix: $200 - $1000. Recalls: None Found
  Exterior:
• Headlight Condensation: Description/Symptoms: Moisture can accumulate inside the headlight assemblies, causing condensation or fogging. Solution: Replace the headlight assemblies with updated versions that prevent condensation. Estimated Cost to Fix: $500 - $1000. Recalls: None Found
• Windshield Wiper Motor Failure: Description/Symptoms: The windshield wiper motor can fail prematurely, causing the wipers to stop working. Solution: Replace the wiper motor. Estimated Cost to Fix: $200 - $500. Recalls: None Found
  Interior:
• HVAC System Malfunctions: Description/Symptoms: The heating, ventilation, and air conditioning (HVAC) system can malfunction due to a faulty blower motor, a leak in the refrigerant lines, or a problem with the control module. Solution: Repair the HVAC system by replacing the faulty component or fixing the leak. Estimated Cost to Fix: $200 - $1200. Recalls: None Found
• Seat Adjustment Problems: Description/Symptoms: The driver’s seat may not adjust properly, making it difficult to find a comfortable driving position. Solution: Repair or replace the seat adjustment mechanism. Estimated Cost to Fix: $200 - $500. Recalls: None Found

Summary:
While the 2016 Volvo VNL 670 is a generally reliable truck, it is not without its issues. The severity of the issues varies, and some are more common and expensive to fix than others. It is important for owners to be aware of these potential problems and to take steps to prevent them or address them as they arise. Regular maintenance and inspections can help to identify and fix minor issues before they become major problems.