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2014 Mazda CX-9

2014 Mazda CX-9

Overview

The 2014 Mazda CX-9 is a mid-size SUV known for its comfortable ride and family-friendly features. Mechanically, it generally holds up well, benefiting from Mazda’s reputation for building durable vehicles. The CX-9 of this generation primarily came with a robust V6 engine paired with a reliable automatic transmission, designed to handle the demands of daily driving and occasional heavier loads. While most owners report a positive experience, like any vehicle, there are specific areas that have seen more attention from mechanics and owners over time. This analysis focuses on documented technical issues beyond routine maintenance, providing insights into potential areas of concern for prospective buyers or current owners.


Engine

3.7L V6

Intake Manifold Runner Control Actuator Failure

  • Symptoms: Check engine light illumination, rough idle, potential loss of engine power.
  • Solution: Replacement of the intake manifold runner control actuator or the entire intake manifold assembly.
  • Cost: $300 - $700

Variable Valve Timing (VVT) System Issues

  • Symptoms: Rattling noise from the engine, especially on startup; check engine light; rough idle.
  • Solution: Replacement of VVT solenoids, phasers, or timing chain components as needed.
  • Cost: $500 - $1500

Transmission

6-Speed Automatic (FWD/AWD)

No widespread issues reported.

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

Suspension

Standard Chassis

No widespread issues reported.

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

Electrical

General Electrical System

Infotainment System Glitches

  • Symptoms: Touchscreen unresponsiveness, freezing, Bluetooth connectivity issues.
  • Solution: Software updates or replacement of the infotainment unit.
  • Cost: $200 - $1000

Battery Drain

  • Symptoms: Vehicle failing to start after sitting for a period, dimming lights.
  • Solution: Diagnosis to find parasitic draw, replacement of faulty modules or battery.
  • Cost: $150 - $500

Exterior

Body Panels and Trim

No widespread issues reported.

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

Interior

Cabin Materials and Features

No widespread issues reported.

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

Summary Verdict

The 2014 Mazda CX-9 is generally considered a reliable vehicle, particularly its powertrain. The 3.7L V6 engine and 6-speed automatic transmission are robust and typically do not present major issues beyond expected maintenance. The most commonly reported technical concerns tend to be related to the intake manifold runner control actuator and the Variable Valve Timing (VVT) system, which can manifest as check engine lights and performance issues. Electrical gremlins, such as infotainment system glitches and occasional battery drain, are also noted but are not pervasive. Overall, the CX-9 offers good long-term reliability for a vehicle of its age and class, with most potential issues being repairable without excessive cost.

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