1999 TOYOTA MR2

Typical onset: 80,000-140,000 mi

Symptoms: White smoke from exhaust, Coolant loss with no visible leak, Overheating under boost, Milky oil on dipstick or cap

Fix: Mid-engine layout makes this a 12-16 hour job minimum. Must pull engine or drop subframe for proper access. ARP studs and MLS gasket strongly recommended over OEM. Deck surface check mandatory. Often combined with timing belt, water pump, and oil pump while you're in there.

Estimated cost: $2,800-5,000

Typical onset: 100,000-180,000 mi

Symptoms: Metallic rattle at cold start, Loss of power and rough idle, Check engine light with multiple misfires, Catastrophic failure: scored cylinder walls from ceramic debris

Fix: Factory pre-cats (integrated into header) break apart internally, sending ceramic into cylinders. Prevention is header replacement with aftermarket or pre-cat delete. If damage occurred, expect full rebuild or engine swap. Many owners proactively remove pre-cats around 100k as insurance.

Estimated cost: $400-800 (preventive header) or $3,500-7,000 (engine rebuild after failure)

Typical onset: 70,000-120,000 mi

Symptoms: Excessive drivetrain clunk on throttle transition, Vibration at idle, Difficulty shifting into gear, Visible sagging or torn rubber on mounts

Fix: Rubber mounts deteriorate badly with age and heat in the engine bay. All three (front, rear, transmission) typically need replacement together. Access requires lifting engine slightly. Plan 4-6 hours for all mounts. OEM or polyurethane options available; poly reduces movement but increases NVH.

Estimated cost: $600-1,200

Symptoms: Sudden loss of all gears except 5th and reverse, Metallic crunching sound from transmission, Gear selector feels disconnected

Fix: 1991-1992 turbos primarily, but some '93s. Factory snap ring on counter gear shaft pops out, destroying internal components. Requires transmission removal (8-10 hours mid-engine), full teardown, and updated snap ring or replacement with later transmission. Check VIN range if buying early SW20 turbo.

Estimated cost: $1,800-3,200

Symptoms: Knocking or ticking from bottom end under load, Low oil pressure at idle when hot, Metal shavings in oil, Sudden catastrophic failure on track

Fix: 3S-GTE oil pickup design marginal under high-G cornering or low oil level. Accusump or baffled pan recommended for track use. Once bearings spin, it's full bottom-end rebuild or replacement shortblock. Prevention: religious oil changes, never run below half-full, install baffle if tracking.

Estimated cost: $3,000-6,500 (rebuild) or $2,500-4,000 (used engine swap)

Typical onset: 120,000-180,000 mi

Symptoms: Coolant weeping from hose connections, Overheating in traffic or summer heat, Visible cracking on rubber hoses, Steam from engine bay

Fix: Factory hoses become brittle and crack, particularly the small heater hoses behind engine. Radiator tanks crack at mounting ears. Budget 3-4 hours for full cooling system refresh (all hoses, radiator, thermostat). Mid-engine makes access tedious but not impossible from top and underneath.

Estimated cost: $800-1,400

Typical onset: 80,000-150,000 mi

Symptoms: Clunking over bumps, Wandering steering and poor turn-in, Uneven tire wear, Visible play in control arm bushings

Fix: MacPherson strut front and strut rear means lots of bushings and ball joints. Control arm bushings, lateral links, and toe links all wear. Full front and rear refresh runs 8-12 hours. Alignment mandatory afterward. OEM rubber or aftermarket poly available; many track cars go full poly.

Estimated cost: $1,200-2,200