2004 Toyota 4Runner
2004 Toyota 4Runner
Overview
The 2004 Toyota 4Runner is a robust mid-size SUV known for its off-road capability and overall durability. Built on a truck chassis, it offers a strong foundation for reliability. While generally well-regarded, like any vehicle, it has specific areas that have seen more attention from owners over time. This analysis focuses on common mechanical and electrical points of concern, excluding routine maintenance and standard wear and tear, to provide a clear picture of potential reliability trends for this model year.
Engine
4.0L V6 (1GR-FE)
Intake Manifold Gasket Leaks
- Symptoms: Coolant leaks, engine misfires, rough idle, potential overheating.
- Solution: Replacement of intake manifold gaskets.
- Cost: $300 - $600
Oil Leaks (Valve Covers/Timing Cover)
- Symptoms: Visible oil on engine components, burning oil smell, low oil level.
- Solution: Replacement of valve cover gaskets or timing cover seals.
- Cost: $400 - $800
4.7L V8 (2UZ-FE)
Head Gasket Failure
- Symptoms: Coolant loss, white smoke from exhaust, milky oil, engine overheating.
- Solution: Replacement of head gaskets and related components.
- Cost: $1500 - $3000
Timing Belt Replacement Interval
- Symptoms: Not an issue if maintained, but failure to replace can lead to catastrophic engine damage.
- Solution: Scheduled replacement of timing belt, water pump, and tensioners.
- Cost: $600 - $1000
Transmission
5-Speed Automatic (A750E/F)
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Suspension
Standard Chassis
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Electrical
General Electrical System
Alternator Failure
- Symptoms: Dimming lights, battery warning light, starting issues, dead battery.
- Solution: Replacement of the alternator.
- Cost: $400 - $700
Window Regulator Failure
- Symptoms: Power windows not operating, slow window movement, grinding noises.
- Solution: Replacement of window regulator and motor assembly.
- Cost: $200 - $400
Exterior
Body and Paint
Clear Coat Peeling
- Symptoms: Fading paint, peeling clear coat, especially on the roof and hood.
- Solution: Repainting affected areas.
- Cost: $500 - $2000+
Interior
Cabin Components
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Summary Verdict
The 2004 Toyota 4Runner is a highly reliable vehicle, particularly for its era. The powertrain, especially the 4.0L V6, is generally robust, though some owners have reported intake manifold gasket leaks and oil leaks. The 4.7L V8, while powerful, can be susceptible to head gasket issues if not properly maintained, and timely timing belt replacement is crucial. Transmission and suspension components are typically very durable. Electrical issues like alternator failure and window regulators are not uncommon as the vehicle ages, but are generally manageable. Exterior paint can show wear, such as clear coat peeling. Overall, the 4Runner remains a solid choice for those seeking a dependable SUV, with most potential issues being addressable with proper maintenance and timely repairs.