2002 HONDA NSX NA1

Typical onset: 60,000-90,000 mi or 7-10 years regardless of miles

Symptoms: No symptoms until catastrophic failure, Service history unknown on most used examples, Belt inspection shows cracking or glazing

Fix: Timing belt, tensioner, water pump, coolant hoses, valve cover gaskets while you're in there. Engine-out service by specialists is 12-16 hours; some techs do it in-chassis in 18-22 hours but risk incomplete access. This is THE critical service interval.

Estimated cost: $3,500-6,000

Symptoms: Complete loss of gears, usually 2nd or 3rd locks out first, Grinding or popping during shifts under load, VIN range-specific (check MT #J4A4-1003542 to J4A4-1005978)

Fix: If affected VIN range and not already fixed, the snap ring can pop out of its groove. Transmission removal, case split, snap ring replacement, reassembly. 14-18 hours labor. Most '02s are beyond this range but verify history on early chassis built with leftover '91-'92 transmissions.

Estimated cost: $4,000-7,000

Typical onset: All ages—time-based deterioration

Symptoms: Climate control display completely dead or flickering, A/C and heater controls unresponsive, Blower works but no mode selection

Fix: Climate control unit has surface-mount capacitors that leak electrolyte over time. Remove unit (1 hour), send out for capacitor replacement service ($200-400), or DIY resolder if skilled. Common enough that specialists stock rebuilt units.

Estimated cost: $400-800

Typical onset: 80,000-150,000 mi

Symptoms: Window drops slowly or won't go up fully, Grinding or clicking noise when operating window, Window falls into door panel

Fix: Plastic regulator gears strip or motors wear out. Door panel removal, regulator replacement. 2-3 hours per side. OEM parts NLA for some components; aftermarket quality is hit-or-miss. Budget for both sides eventually.

Estimated cost: $600-1,200 per side

Typical onset: 70,000-120,000 mi on track-driven cars

Symptoms: Rising oil consumption (more than 1 qt per 3,000 mi), Blue smoke on deceleration, Loss of compression in one or more cylinders

Fix: C30A has piston oil squirters that clog if oil changes are stretched or wrong oil used. Starved pistons crack ring lands. Requires engine-out rebuild: pistons, rings, bore inspection, head resurface. 40-60 hours all-in. Preventable with 3,000-mile oil changes using 10W-30.

Estimated cost: $12,000-18,000

Typical onset: 100,000+ mi or 20+ years

Symptoms: ABS warning light stays on, Pedal feels normal but no ABS activation during testing, Brake system otherwise functional

Fix: ABS modulator pump motor seizes or accumulator loses pressure. Unit under passenger floor area, 4-6 hours to remove, bleed system. Rebuild services exist (~$500-800) or used units from Japan. Not a safety issue if you're comfortable without ABS.

Estimated cost: $1,500-2,500

Typical onset: 60,000+ mi or 15+ years

Symptoms: Coolant seepage around firewall and rear bulkhead, Sweet smell in cabin or engine bay, Slow coolant loss without visible external leaks

Fix: NSX has ~23 coolant hoses, many in difficult locations. Rubber bellows on coolant pipes crack. Do them all during timing belt service or plan on chasing leaks forever. 6-8 hours if done standalone, 2-3 hours added to timing belt job.

Estimated cost: $1,200-2,000 standalone; $400-600 added to timing belt job

Typical onset: 80,000+ mi

Symptoms: Power steering fluid spots under car, Whining noise from pump at low fluid, Heavy steering effort when cold

Fix: High-pressure hose and return hose age out. Lines run through tight spaces; 3-5 hours labor. Pump can be damaged if run low, so catch early. OEM hoses still available but expensive.

Estimated cost: $800-1,400