2017 Volvo VNL 300

2017 Volvo VNL 300

Overview

The 2017 Volvo VNL 300 is a Class 8 truck designed for regional haul and vocational applications, known for its robust construction and driver comfort. Volvo’s commitment to reliability is evident in the VNL series, which generally offers strong performance in demanding environments. This analysis focuses on common technical issues reported by owners and fleet managers, excluding routine maintenance. The VNL 300, while built to last, can experience specific component failures under heavy use, particularly concerning its powertrain and exhaust aftertreatment systems. Understanding these potential issues can aid in proactive maintenance and cost management for fleet operators.

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Engine

Volvo D11 (9.4L Diesel)

DPF Regeneration Issues

• Symptoms: Check engine light, reduced engine power, increased fuel consumption, exhaust smell.
• Solution: Forced regeneration, DPF cleaning, or replacement.
• Cost: $500 - $2,500

EGR Cooler Leaks

• Symptoms: White smoke from exhaust, coolant loss, overheating, rough engine idle.
• Solution: Replacement of the EGR cooler.
• Cost: $800 - $1,800

Volvo D13 (12.8L Diesel)

DPF Regeneration Issues

• Symptoms: Check engine light, reduced engine power, increased fuel consumption, exhaust smell.
• Solution: Forced regeneration, DPF cleaning, or replacement.
• Cost: $500 - $2,500

Fuel Injector Problems

• Symptoms: Rough idling, misfires, poor fuel economy, engine knocking, black smoke.
• Solution: Diagnosis and replacement of faulty injectors.
• Cost: $600 - $1,500 per injector

Transmission

Volvo I-Shift (Automated Manual)

Clutch Actuator Failure

• Symptoms: Difficulty shifting gears, transmission warning lights, inability to engage gears.
• Solution: Replacement of the clutch actuator assembly.
• Cost: $1,500 - $3,000

Transmission Control Module (TCM) Errors

• Symptoms: Erratic shifting, loss of power, transmission fault codes.
• Solution: Software update or replacement of the TCM.
• Cost: $700 - $1,800

Eaton Fuller (Manual)

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Suspension

Air Suspension (Rear)

Air Spring Leaks

• Symptoms: Uneven ride height, sagging suspension, air leaks audible.
• Solution: Replacement of leaking air springs.
• Cost: $400 - $800 per spring

Ride Height Control Valve Malfunction

• Symptoms: Inability to maintain correct ride height, suspension too high or too low.
• Solution: Replacement of the ride height control valve.
• Cost: $300 - $600

Spring Suspension (Rear)

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Electrical

Wiring Harness Issues

Corrosion and Shorts

• Symptoms: Intermittent electrical failures, warning lights, non-functional accessories.
• Solution: Inspection, repair, or replacement of damaged wiring sections.
• Cost: $300 - $1,200

Alternator/Starter

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Exterior

Body Panels and Doors

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Lighting Systems

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Interior

HVAC System

Blower Motor Failure

• Symptoms: No air flow from vents, intermittent fan speed.
• Solution: Replacement of the blower motor.
• Cost: $300 - $700

Driver Controls and Displays

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

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Summary Verdict

The 2017 Volvo VNL 300 demonstrates good overall reliability, particularly for its intended vocational and regional haul applications. The most frequently reported technical concerns revolve around the exhaust aftertreatment system (DPF) and EGR coolers, common in modern diesel engines. Transmission issues, especially with the automated I-Shift, can occur but are generally manageable with timely repairs. Electrical and exterior components are typically robust. Proactive maintenance, especially concerning DPF regeneration cycles and regular inspections of air suspension components, can significantly mitigate potential downtime and repair costs, ensuring the VNL 300 remains a dependable workhorse.