2004 Mazda MPV

2004 Mazda MPV

Overview

The 2004 Mazda MPV, a versatile minivan, offered a blend of practicality and comfort for families. While generally considered a reliable vehicle for its era, like any automobile, it has specific areas that have seen more attention from owners regarding potential issues. This analysis focuses on documented technical reliability concerns beyond routine maintenance, examining common problems reported across its powertrain, chassis, and electrical systems. Understanding these potential weak points can help owners anticipate and address issues, ensuring the longevity and optimal performance of their MPV.

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Engine

2.3L MZR L3-VE (Naturally Aspirated)

Oil Leaks

• Symptoms: Visible oil spots under the vehicle, low oil level warnings, burning oil smell.
• Solution: Replacement of seals and gaskets (e.g., valve cover gasket, oil pan gasket).
• Cost: $300 - $700

Variable Valve Timing (VVT) Actuator Issues

• Symptoms: Rattling noise from the engine on startup, check engine light, rough idle.
• Solution: Replacement of the VVT actuator and potentially related components.
• Cost: $500 - $1000

Transmission

5-Speed Automatic (FS5A-EL)

Harsh Shifting / Slipping

• Symptoms: Jerky gear changes, delayed engagement, slipping between gears, transmission warning light.
• Solution: Transmission fluid and filter change, solenoid replacement, or full transmission rebuild/replacement.
• Cost: $400 - $2500+

Suspension

Standard Chassis

Worn Control Arm Bushings

• Symptoms: Clunking noises over bumps, vague steering feel, uneven tire wear.
• Solution: Replacement of control arm bushings or the entire control arm assembly.
• Cost: $300 - $600

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

Body Control Module (BCM) Issues

Intermittent Power Failures

• Symptoms: Various electrical components (lights, power windows, radio) acting erratically or failing completely.
• Solution: Diagnosis and potential reprogramming or replacement of the BCM.
• Cost: $500 - $1200

Alternator Failure

Battery Warning Light / Dead Battery

• Symptoms: Battery warning light illuminated on the dashboard, dimming headlights, eventual battery drain.
• Solution: Replacement of the alternator.
• Cost: $400 - $700

Exterior

Standard Body

Rear Hatch Latch Mechanism

• Symptoms: Difficulty opening or closing the rear hatch, latch not engaging properly.
• Solution: Lubrication or replacement of the rear hatch latch mechanism.
• Cost: $150 - $300

Interior

HVAC System

Blower Motor Resistor Failure

• Symptoms: HVAC fan only works on the highest setting, or not at all.
• Solution: Replacement of the blower motor resistor.
• Cost: $100 - $250

Power Window Regulators

Sticking or Failed Power Windows

• Symptoms: Power windows move slowly, get stuck, or stop working altogether.
• Solution: Replacement of the power window regulator and motor assembly.
• Cost: $200 - $400

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Summary Verdict

The 2004 Mazda MPV generally presents a reasonable reliability record, with most reported issues being manageable and not indicative of systemic failure. Common concerns tend to revolve around the aging of specific components like suspension bushings, electrical parts such as the alternator and BCM, and the transmission’s tendency for harsh shifting over time. Engine oil leaks and VVT actuator noise are also noted. While these issues can incur repair costs, they are often addressable with proper maintenance and timely repairs. Overall, the MPV is a practical choice, but potential buyers should be aware of these specific areas that may require attention.