2000 HONDA NSX NA1

Typical onset: 90,000+ mi or 7+ years regardless of miles

Symptoms: No symptoms until catastrophic failure, Coolant seepage from water pump weep hole, Squealing on cold start if tensioner bearing deteriorates

Fix: Timing belt, tensioner, water pump, and all accessory belts are non-negotiable every 90k or 6 years per Honda. Requires engine-out or extensive disassembly from rear. 12-16 hours labor for full service with cooling system refresh.

Estimated cost: $3,500-5,500

Typical onset: 100,000-150,000 mi

Symptoms: Metallic ticking from valve covers at idle, worse when cold, Noise persists after warm-up, Oil pressure normal but noise continues

Fix: C30A uses shim-under-bucket lifters that wear over time, especially if oil changes were stretched. Requires cam cover removal, cam removal, shim replacement for all 24 valves. Extremely labor-intensive: 14-18 hours. Often combined with head gasket refresh if heads come off.

Estimated cost: $2,800-4,200

Typical onset: 80,000-120,000 mi

Symptoms: ATF puddles under engine bay near radiator, Low transmission fluid warnings or slipping, Visible corrosion on hard lines running to front-mounted cooler

Fix: Factory steel lines corrode at bends and fittings. Requires replacement of cooler lines and often the cooler itself. 4-6 hours labor including fluid refill and bleeding.

Estimated cost: $800-1,400

Typical onset: 70,000+ mi or 15+ years

Symptoms: Clunk when engaging drive or reverse, Vibration through shifter at idle, Visible cracks or oil saturation in rubber mount

Fix: Rubber mounts harden and crack with age. Transmission mount is accessible but requires subframe support. 3-4 hours labor.

Estimated cost: $600-900

Typical onset: 120,000+ mi

Symptoms: Oil weeping from head/block mating surface, Slight coolant smell under hood after hard driving, No overheating or mixing of fluids initially

Fix: External seepage is common before internal failure. If caught early, head gasket replacement without machining is possible. Requires valve adjustment and timing belt service at same time to avoid duplicate labor. 16-20 hours for both banks.

Estimated cost: $4,500-6,500

Symptoms: Window drops into door, Slow or jerky operation, Motor runs but glass doesn't move

Fix: Plastic regulator gears strip or cables fray. NLA from Honda for some components; aftermarket or used are only options. 2-3 hours per side for door disassembly and regulator replacement.

Estimated cost: $600-1,200

Typical onset: 100,000+ mi

Symptoms: Fuel gauge bounces or reads empty when tank has fuel, Check engine light for fuel level sensor circuit

Fix: Sending unit floats corrode or internal resistors fail. Requires fuel tank drop. 4-5 hours labor plus sending unit replacement.

Estimated cost: $800-1,300