1999 HONDA S2000

Typical onset: 80,000-150,000 mi

Symptoms: Ticking/tapping noise at idle that quiets at higher RPM, Metal flakes in oil or on magnetic drain plug, CEL for misfire if retainer fails completely, Loss of compression in affected cylinder

Fix: Valve retainers wear due to high RPM stress; can drop into cylinder causing catastrophic damage. Proper fix requires cylinder head removal, all retainers replaced, valve stem seals, and lifter inspection. 12-16 labor hours for head R&R plus machine work.

Estimated cost: $2,500-4,000

Symptoms: Metallic knock under hard cornering or track use, Low oil pressure warning at high RPM, Rod bearing wear found during oil analysis, Spun bearing in severe cases

Fix: F20C has marginal oiling under sustained high-G cornering or very low oil levels. Oil starvation kills rod bearings. Prevention is frequent oil changes (every 3-5k mi) and keeping level topped off. If bearings are damaged, requires full engine rebuild with crank and rod work. 25-35 hours labor.

Estimated cost: $4,500-8,000

Typical onset: 100,000-180,000 mi

Symptoms: Grinding or crunching when shifting into 2nd gear, Difficult engagement into 3rd, especially when cold, Gear pop-out under deceleration, Notchy shifter feel

Fix: Hard shifting and clutch dumps wear synchros, especially 2nd gear. Requires transmission removal, disassembly, synchro ring and hub replacement. Many owners do full rebuild with all synchros and bearings at this point. 10-14 hours labor for trans R&R plus rebuild.

Estimated cost: $2,000-3,500

Typical onset: 120,000-200,000 mi

Symptoms: Rattling noise on cold start that disappears after 5-10 seconds, Chain slap noise at idle, CEL for cam/crank correlation, Rough idle or no-start if chain jumps timing

Fix: Timing chain tensioner wears, allows chain slack. Can jump timing and bend valves. Replace tensioner, chain, guides, and timing chain cover gasket as preventive maintenance. 8-10 hours labor. Do NOT ignore rattle.

Estimated cost: $1,200-2,000

Typical onset: 60,000-100,000 mi

Symptoms: Clunking on shifts or throttle transitions, Excessive drivetrain movement visible from engine bay, Vibration through shifter, Difficult gear engagement

Fix: Rubber transmission mount deteriorates from age and hard launches. Replace mount and inspect other engine/trans mounts while under car. 1.5-2 hours labor. Common wear item.

Estimated cost: $200-400

Symptoms: Top won't latch or unlatch properly, Motor runs but top doesn't move, Cable slippage or broken plastic linkage pieces, Top sits crooked when closed

Fix: Plastic linkage components and cables wear out from UV and cycles. Motor can fail or cables stretch. Requires disassembly of entire top mechanism. 3-5 hours labor depending on what's broken. Many owners switch to manual operation.

Estimated cost: $400-1,200

Typical onset: 80,000-140,000 mi

Symptoms: Soft or spongy clutch pedal, Pedal stays to floor, Difficulty shifting, gear grind, Fluid leak visible at firewall or bellhousing

Fix: Internal seals wear in master or slave cylinder. Replace both as a set with fresh fluid bleed. Slave requires transmission removal on some S2000s (AP1 has internal slave). 4-6 hours if trans must come out.

Estimated cost: $600-1,200