1995 TOYOTA PREVIA

Typical onset: 100,000-150,000 mi

Symptoms: Whining or grinding noise from supercharger, Blue smoke from exhaust (oil burning), Loss of boost pressure and power, Oil consumption increases dramatically

Fix: Supercharger rebuild or replacement requires removing the entire assembly from underneath. Most shops replace rather than rebuild due to parts availability. Figure 6-8 hours labor due to mid-engine location and tight access. Aftermarket rebuilt units are scarce; many owners delete the supercharger entirely and accept naturally-aspirated performance.

Estimated cost: $1,800-3,200

Typical onset: 80,000-140,000 mi

Symptoms: Transmission fluid leaking from front of vehicle, Fluid mixing with coolant (strawberry milkshake in radiator), Transmission slipping or delayed engagement, Overheating transmission

Fix: The internal transmission cooler in the radiator fails, allowing coolant and ATF to mix—this kills the transmission if not caught early. Requires radiator replacement, complete transmission fluid flush with lines cleaned, and often a transmission rebuild if contamination occurred. This is a 4-6 hour job if caught before transmission damage; 15-20+ hours if the transmission needs rebuilding.

Estimated cost: $800-1,200 (cooler only), $3,500-5,500 (with transmission rebuild)

Typical onset: 120,000-180,000 mi

Symptoms: White smoke from exhaust, Coolant loss with no visible leaks, Overheating, Rough idle and misfires, Milky oil on dipstick

Fix: The mid-engine layout turns a routine head gasket job into a 16-20 hour ordeal. Requires lifting the vehicle, removing the entire front subframe, and dropping the engine down for access. Most shops quote this at 18-22 hours labor. While you're in there, expect to replace timing belt, water pump, and inspect the supercharger. Many owners total the vehicle at this point.

Estimated cost: $3,500-5,500

Typical onset: 90,000-130,000 mi

Symptoms: Clunking when shifting from Park to Drive, Excessive vibration at idle, Transmission movement visible under acceleration, Harsh engagement into gear

Fix: The rear transmission mount deteriorates and collapses, allowing excessive drivetrain movement. Requires working underneath in very tight quarters—about 3-4 hours labor for both upper and lower mounts. Access is poor but not as bad as engine work. Replace both mounts together as preventive maintenance.

Estimated cost: $450-750

Typical onset: 100,000-160,000 mi

Symptoms: Hard starting when hot, Stumbling under acceleration, Loss of power at highway speeds, Engine dies and won't restart until cool

Fix: The in-tank fuel pump fails or the external fuel filter clogs (often neglected because access is terrible). Filter is mounted high on the firewall requiring significant disassembly—2-3 hours. Fuel pump requires dropping the tank, another 4-5 hours due to mid-engine packaging. Many techs access through the rear cargo area by cutting an access panel.

Estimated cost: $300-500 (filter), $800-1,200 (pump)

Typical onset: 150,000-200,000 mi

Symptoms: Knocking noise from engine, especially on cold starts, Low oil pressure warning, Metallic rattling that increases with RPM, Sudden catastrophic failure with seized engine

Fix: Oil starvation issues from neglected maintenance or failed supercharger oil return lead to bearing wear. Requires complete engine teardown which means dropping the entire powertrain—20-30 hours labor minimum. Most shops recommend used engine replacement or short block rather than full rebuild due to access difficulties. This typically totals the vehicle economically.

Estimated cost: $4,500-7,500 (rebuild), $2,500-4,000 (used engine swap)

Typical onset: 80,000-150,000 mi

Symptoms: Oil pooling on top of engine, Oil smell in cabin, Oil dripping onto exhaust manifold with smoke, Visible leak around distributor base

Fix: The distributor O-ring hardens and leaks oil, creating a mess and potential fire hazard. Access is difficult but doable without dropping the engine—requires removing intake components and working blind. About 2-3 hours labor. Replace with OEM seal only; aftermarket seals fail quickly.

Estimated cost: $250-450