2019 Volvo VAH 640
2019 Volvo VAH 640
Overview
The 2019 Volvo VAH 640 is a heavy-duty vocational truck designed for demanding applications. As such, its reliability is paramount. Volvo Trucks generally have a strong reputation for durability and robust engineering, particularly in their powertrain components. The VAH 640, being a specialized model, benefits from this heritage. Owners and fleet managers typically expect high uptime and long service life from these vehicles. While specific component failures can occur in any complex machinery, the VAH 640 is engineered to withstand rigorous use, with a focus on minimizing unscheduled downtime through quality manufacturing and readily available support. This analysis focuses on documented common issues beyond standard maintenance.
Engine
Volvo D11 (10.8L Diesel)
DEF (Diesel Exhaust Fluid) System Issues
- Symptoms: Check Engine light, reduced engine power, emissions system faults.
- Solution: Diagnosis and repair of DEF pump, heater, lines, or injector. Software updates may be required.
- Cost: $500 - $2500
EGR Cooler Leaks
- Symptoms: Coolant loss, white smoke from exhaust, overheating.
- Solution: Replacement of the EGR cooler assembly.
- Cost: $800 - $2000
Volvo D13 (12.8L Diesel)
DEF (Diesel Exhaust Fluid) System Issues
- Symptoms: Check Engine light, reduced engine power, emissions system faults.
- Solution: Diagnosis and repair of DEF pump, heater, lines, or injector. Software updates may be required.
- Cost: $500 - $2500
Turbocharger Failures
- Symptoms: Loss of power, excessive smoke, whistling noises, boost leaks.
- Solution: Replacement of the turbocharger unit.
- Cost: $1500 - $4000
Volvo D16 (16.1L Diesel)
DEF (Diesel Exhaust Fluid) System Issues
- Symptoms: Check Engine light, reduced engine power, emissions system faults.
- Solution: Diagnosis and repair of DEF pump, heater, lines, or injector. Software updates may be required.
- Cost: $500 - $2500
No widespread issues reported.
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Transmission
Volvo I-Shift (Automated Manual Transmission)
Clutch Actuator Malfunctions
- Symptoms: Difficulty shifting gears, transmission warning lights, jerky engagement.
- Solution: Replacement of the clutch actuator or related sensors.
- Cost: $1000 - $3000
Transmission Control Module (TCM) Errors
- Symptoms: Erratic shifting, failure to engage gears, ‘Transmission Fault’ messages.
- Solution: Diagnosis and potential reprogramming or replacement of the TCM.
- Cost: $800 - $2500
Eaton Fuller Manual Transmissions (Various Models)
No widespread issues reported.
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Suspension
Volvo Air Suspension (Rear)
Air Spring Leaks
- Symptoms: Vehicle sagging on one side, uneven ride height, compressor running excessively.
- Solution: Replacement of leaking air springs or air lines.
- Cost: $400 - $1200 per corner
Height Control Valve Malfunctions
- Symptoms: Inability to adjust ride height, suspension too high or too low.
- Solution: Repair or replacement of the height control valve.
- Cost: $300 - $800
Standard Leaf Spring Suspension (Front/Rear)
No widespread issues reported.
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Electrical
Wiring Harnesses
Corrosion and Abrasion
- Symptoms: Intermittent electrical faults, warning lights, non-functional accessories.
- Solution: Inspection, repair, or replacement of damaged wiring sections.
- Cost: $500 - $2000+
Alternator and Starter
No widespread issues reported.
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Infotainment/Telematics System
Software Glitches
- Symptoms: Screen freezing, unresponsiveness, connectivity issues.
- Solution: Software updates or system resets. In rare cases, unit replacement.
- Cost: $200 - $1500
Exterior
Body Panels and Frame
Corrosion (in harsh climates)
- Symptoms: Rust formation on frame rails, cab corners, and undercarriage.
- Solution: Preventative rustproofing, repair of affected areas.
- Cost: $300 - $1500+
Lighting Systems
No widespread issues reported.
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Interior
Cab Trim and Upholstery
No widespread issues reported.
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
HVAC System
Blower Motor Failures
- Symptoms: No airflow or intermittent airflow from vents.
- Solution: Replacement of the blower motor or resistor.
- Cost: $300 - $700
Summary Verdict
The 2019 Volvo VAH 640 demonstrates solid reliability, characteristic of Volvo’s heavy-duty offerings. The primary areas requiring attention tend to be related to the complex emissions control systems (DEF), particularly with the D11 and D13 engines, and potential issues with automated transmission components like the I-Shift. While less common, electrical harness integrity and HVAC blower motors can also present issues. However, for a vocational truck operating under demanding conditions, these are generally manageable and within expected parameters for the class. Regular preventative maintenance and prompt attention to warning lights are crucial for maximizing uptime and longevity.