2008 Volvo XC90

2008 Volvo XC90

Overview

The 2008 Volvo XC90, a luxury mid-size SUV, is generally known for its robust build and safety features. However, like any vehicle of its age, it has specific areas that have shown a propensity for issues. This analysis focuses on documented technical reliability concerns beyond routine maintenance. Owners often praise its comfortable ride and spacious interior, but potential buyers should be aware of common problems that may arise, particularly concerning the powertrain and certain electronic components. Addressing these potential issues proactively can help maintain the XC90’s overall reliability and driving experience.

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Engine

3.2L Inline-6

PCV System Failure

• Symptoms: Rough idle, check engine light, oil leaks, whistling noise from engine bay.
• Solution: Replacement of the Positive Crankcase Ventilation (PCV) valve and associated hoses.
• Cost: $300 - $600

Camshaft Seal Leak

• Symptoms: Oil leaks around the front of the engine, potential for oil on spark plugs.
• Solution: Replacement of the camshaft seals.
• Cost: $400 - $800

4.4L V8 (Yamaha-sourced)

Timing Chain Tensioner Wear

• Symptoms: Rattling noise from the front of the engine, especially on startup; check engine light.
• Solution: Replacement of timing chain tensioners and guides.
• Cost: $1500 - $3000

Variable Valve Timing (VVT) Solenoid Failure

• Symptoms: Rough idle, poor performance, check engine light with VVT codes.
• Solution: Replacement of VVT solenoids.
• Cost: $300 - $600

Transmission

Geartronic Automatic (AW-55-50SN / AW-55-51SN)

Solenoid Pack Failure

• Symptoms: Harsh shifting, delayed engagement, transmission warning light, slipping gears.
• Solution: Replacement of the transmission solenoid pack.
• Cost: $500 - $1000

Torque Converter Issues

• Symptoms: Shuddering at low speeds, slipping, difficulty engaging gears.
• Solution: Rebuild or replacement of the torque converter.
• Cost: $800 - $1500

Geartronic Automatic (TF-80SC)

No widespread issues reported.

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

Suspension

Standard Chassis

Control Arm Bushing Wear

• Symptoms: Clunking noises over bumps, vague steering feel, uneven tire wear.
• Solution: Replacement of worn control arm bushings or the entire control arm assembly.
• Cost: $300 - $700

Strut Mount Bearing Failure

• Symptoms: Popping or creaking noise when turning the steering wheel, especially at low speeds.
• Solution: Replacement of the strut mount bearings.
• Cost: $200 - $400

Electrical

General Electrical System

CEM Module Issues

• Symptoms: Intermittent electrical problems, warning lights, non-functional accessories, immobilizer issues.
• Solution: Diagnosis and potential reprogramming or replacement of the Central Electronic Module (CEM).
• Cost: $500 - $1200

Window Regulator Failure

• Symptoms: Power windows not operating, slow window movement, grinding noise from door panel.
• Solution: Replacement of the window regulator mechanism.
• Cost: $200 - $400

Exterior

Body and Trim

No widespread issues reported.

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

Interior

Cabin Components

Sunroof Drain Clogs

• Symptoms: Water leaks into the cabin, musty smell, potential damage to headliner or electronics.
• Solution: Clearing of sunroof drainage channels.
• Cost: $100 - $250

HVAC Blower Motor Resistor Failure

• Symptoms: Fan only works on highest setting or not at all.
• Solution: Replacement of the blower motor resistor.
• Cost: $100 - $200

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Summary Verdict

The 2008 Volvo XC90 offers a blend of safety and utility, but potential buyers should be aware of common reliability concerns. The inline-6 and V8 engines can experience issues like PCV system failures and timing chain wear, respectively. Automatic transmissions, particularly the earlier AW-55 series, are prone to solenoid pack and torque converter problems. Suspension components such as control arm bushings can wear out, leading to noise and handling issues. Electrical gremlins, often stemming from the CEM module, and interior issues like clogged sunroof drains are also noted. While many of these issues are repairable, they represent potential costs to consider when purchasing or maintaining this vehicle.