1996 TOYOTA SUPRA

Typical onset: 80,000-150,000 mi

Symptoms: White smoke from exhaust especially on cold start, Coolant loss with no visible leaks, Milky oil on dipstick or oil cap, Overheating under boost, Bubbles in radiator with cap off

Fix: Factory multi-layer steel head gasket fails between cylinders 5-6 typically. Proper fix requires head removal, resurface (usually warped 0.003-0.008 inches), ARP head studs, and upgraded MHG gasket. 18-24 labor hours depending on turbo configuration and whether you're doing both heads. Always replace timing belt, water pump, and coolant hoses while in there.

Estimated cost: $3,500-6,000

Typical onset: 120,000-180,000 mi

Symptoms: Blue smoke on acceleration, Excessive oil consumption (1qt per 500-1000 mi), Whining or grinding noise from engine bay, Loss of boost pressure, Oil in intercooler piping

Fix: Factory sequential twins have weak seals and shaft play develops with age. Most owners upgrade to single turbo at this point ($4k-8k), but OEM replacement twins run 8-12 labor hours with downpipe work, coolant lines, and oil feed/return lines. If one turbo is gone, replace both—the other is living on borrowed time.

Estimated cost: $2,800-4,200

Typical onset: 60,000-100,000 mi

Symptoms: Shuddering between 40-50 mph during light acceleration, Delayed engagement into Drive or Reverse, Transmission slipping under load, Metal shavings in transmission pan, Check engine light with torque converter clutch codes

Fix: The A340E auto behind the turbo motor has a notoriously weak lockup clutch that fails early, especially if fluid wasn't changed every 30k. Requires transmission removal and rebuild or replacement. 10-14 labor hours. Many owners swap to the 6-speed manual (Getrag V160) at this point if budget allows, adding $3k-5k in parts alone.

Estimated cost: $2,500-4,000

Symptoms: No-start condition with cranks but won't fire, Intermittent stalling while driving, especially when hot, Car dies and restarts after cooling 20-30 minutes, No tach reading during crank, No spark, no fuel pump prime

Fix: The distributor-mounted CPS on 2JZ engines fails without warning, stranding you instantly. It's heat-sensitive and degrades over time. Replacement is 1-2 hours but the OEM part is $300-500. Everyone carries a spare in the glovebox after the first roadside failure. Test by swapping a known-good unit—there's no reliable way to test in place.

Estimated cost: $400-700

Typical onset: 100,000-150,000 mi

Symptoms: Clunking from rear on throttle lift or application, Vibration at highway speeds, Wheel hop under hard acceleration, Visible gap or movement in diff mounts, Handling feels loose or imprecise

Fix: The rear differential mounts and subframe bushings wear out, allowing the diff to shift under load. OEM rubber bushings are soft and fail faster on high-power cars. Solid or polyurethane bushings are the upgrade path. Requires dropping exhaust and diff, 4-6 hours. While you're in there, inspect the carrier bearing and driveshaft—often due at the same time.

Estimated cost: $800-1,400

Typical onset: 120,000+ mi

Symptoms: Hesitation or stumble under wide-open throttle, Won't rev past 4000-5000 rpm under load, Hard starting when fuel tank below 1/4, Whining noise from rear of car, Fuel pressure drops below 38-40 psi at idle

Fix: Factory in-tank pump weakens with age and absolutely cannot support anything beyond stock boost levels. Replacement requires dropping the fuel tank, 3-4 hours. Most modified cars upgrade to a Walbro 255 lph or dual pump setup. If the car has been modded and still has the stock pump, it's a time bomb.

Estimated cost: $500-900

Typical onset: 80,000-120,000 mi

Symptoms: Excessive shifter vibration at idle, Clunking when engaging first gear or reverse, Driveline vibration under hard acceleration, Visible sagging or cracking of rubber mount

Fix: Both manual and automatic use a large rubber transmission mount that degrades and causes annoying NVH issues. It's a 1-2 hour job from underneath with basic hand tools. Inexpensive part ($80-150 OEM), but makes a huge difference in drivetrain feel. Often overlooked during pre-purchase inspections.

Estimated cost: $200-400