2004 Acura NSX
2004 Acura NSX
Overview
The 2004 Acura NSX, a legendary mid-engine sports car, is renowned for its exceptional engineering and performance. While generally a highly reliable vehicle, like any performance machine, it can experience specific issues as it ages. This analysis focuses on documented technical reliability concerns beyond routine maintenance, providing insights into potential areas of attention for owners and enthusiasts. The NSX’s robust construction and meticulous design contribute significantly to its enduring appeal and relatively low incidence of widespread problems, especially considering its age and performance capabilities. This data aims to offer a clear picture of its technical strengths and any notable weaknesses.
Engine
3.2L V6 (C32B)
Timing Belt Failure
- Symptoms: Sudden engine power loss, unusual noises, engine stalling.
- Solution: Replacement of timing belt, tensioners, and idler pulleys. Inspection of water pump and related seals.
- Cost: $800 - $1,500
Oil Leaks (Rear Main Seal)
- Symptoms: Visible oil drips from the rear of the engine, low oil level.
- Solution: Replacement of the rear main crankshaft seal. This is labor-intensive due to transmission removal.
- Cost: $1,200 - $2,500
Transmission
6-Speed Manual
Clutch Wear
- Symptoms: Slipping clutch, difficulty shifting gears, burning smell.
- Solution: Replacement of clutch disc, pressure plate, and release bearing. Flywheel resurfacing or replacement may be needed.
- Cost: $1,000 - $2,000
Synchronizer Issues
- Symptoms: Grinding noise when shifting, difficulty engaging gears.
- Solution: Rebuilding or replacement of transmission synchronizers. May require transmission disassembly.
- Cost: $1,500 - $3,000
Suspension
Double Wishbone
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Electrical
General Electrical System
Window Regulator Failure
- Symptoms: Power windows not operating, slow window movement, unusual noises from door panel.
- Solution: Replacement of the window regulator mechanism.
- Cost: $300 - $600
HVAC Blower Motor Resistor
- Symptoms: HVAC fan only works on highest setting or not at all.
- Solution: Replacement of the blower motor resistor.
- Cost: $150 - $300
Exterior
Body Panels and Lighting
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Interior
Cabin Components
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Summary Verdict
The 2004 Acura NSX stands as a testament to Japanese engineering excellence, exhibiting remarkable reliability for a high-performance sports car. While most systems are robust, potential owners should be aware of age-related concerns such as timing belt replacement, potential oil leaks from the rear main seal, and wear on clutch components in manual transmissions. Electrical gremlins like window regulators and HVAC resistors are also noted but are generally manageable. Overall, the NSX’s mechanical integrity is high, making it a desirable classic with a solid reputation for durability, provided it has been maintained diligently.