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2005 Mitsubishi Endeavor

2005 Mitsubishi Endeavor

Overview

The 2005 Mitsubishi Endeavor is a mid-size SUV that offered a comfortable ride and a spacious interior for its time. It was primarily equipped with a V6 engine and an automatic transmission, aiming to provide a balance of performance and utility for families. While generally considered a decent option in its segment, like any vehicle, it has specific areas where owners have reported recurring issues. Understanding these potential problems can help prospective buyers and current owners with maintenance and repair planning. This analysis focuses on documented technical reliability concerns beyond routine maintenance.


Engine

3.8L V6

Intake Manifold Gasket Leaks

  • Symptoms: Coolant leaks, engine overheating, rough idle, sweet smell from engine bay.
  • Solution: Replacement of the intake manifold gaskets.
  • Cost: $400 - $700

Timing Belt Replacement

  • Symptoms: While not a failure, this is a critical maintenance item. Failure to replace can lead to catastrophic engine damage.
  • Solution: Scheduled replacement of the timing belt, tensioner, and idler pulleys.
  • Cost: $500 - $800

Transmission

4-Speed Automatic

Transmission Slipping/Hesitation

  • Symptoms: Delayed engagement, slipping between gears, rough shifting, potential loss of drive.
  • Solution: Transmission fluid and filter change, solenoid replacement, or full transmission rebuild.
  • Cost: $500 - $2500+

Suspension

Standard Chassis

Worn Control Arm Bushings

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

Strut Mount Bearing Failure

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

Electrical

General Electrical System

Power Window Motor Failure

  • Symptoms: Power windows not operating, slow operation, grinding noises.
  • Solution: Replacement of the power window motor and regulator assembly.
  • Cost: $200 - $400

Alternator Failure

  • Symptoms: Dimming headlights, battery warning light illuminated, difficulty starting, electrical components malfunctioning.
  • Solution: Replacement of the alternator.
  • Cost: $400 - $700

Exterior

Body and Trim

Rust on Wheel Arches and Rocker Panels

  • Symptoms: Visible rust and corrosion, especially in areas with harsh winters or high humidity.
  • Solution: Rust repair and repainting, or replacement of affected panels.
  • Cost: $300 - $1000+

Interior

Cabin Components

HVAC 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

Summary Verdict

The 2005 Mitsubishi Endeavor, while offering a practical package, exhibits some common reliability concerns typical for vehicles of its age and class. The 3.8L V6 engine can be prone to intake manifold gasket leaks and requires diligent adherence to its timing belt replacement schedule. The automatic transmission may experience slipping or hesitation issues, potentially requiring significant repair. Suspension components like control arm bushings and strut mounts are also noted for wear. Electrical issues, particularly with power windows and alternators, can arise. Exterior rust, especially in vulnerable areas, and interior HVAC blower motor resistor failures are also reported. Despite these points, many Endeavors have provided reliable service when properly maintained, but potential buyers should be aware of these specific areas for inspection and potential future repairs.

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