1992 SUBARU LEGACY TURBO

Typical onset: 80,000-150,000 mi

Symptoms: Oil weeping from cylinder head mating surfaces, Coolant seepage visible on block exterior, Slight coolant smell after driving, No overheating in early stages

Fix: Both head gaskets replacement requires 8-10 labor hours. Resurface heads if warped (add 2 hours machine shop time). Replace timing components, water pump, and all coolant hoses while open. Critical to use OEM or Fel-Pro gaskets—aftermarket failures are common.

Estimated cost: $1,200-1,800

Typical onset: Any mileage—age-related

Symptoms: ATF puddles under vehicle, Transmission overheating, Burnt ATF smell, Sudden loss of all gears if catastrophic

Fix: The steel hard lines rust through where they run along the subframe. Requires custom fabrication or NOS parts (discontinued). 3-4 hours labor to reroute with braided stainless lines to external cooler. Many shops add auxiliary cooler while doing this job. Flush transmission after repair.

Estimated cost: $600-1,000

Typical onset: 100,000+ mi or after boost modifications

Symptoms: Sudden loss of compression in one cylinder, Heavy blue smoke on startup, Misfires under boost, Metallic rattling from cylinder head

Fix: The #4 cylinder is most susceptible due to EJ22T's cooling bias. Requires full engine rebuild or short block replacement. 16-20 hours labor for removal, teardown, inspection, reassembly, and reinstall. Must replace pistons, rings, bearings, and resurface heads. Budget adds up fast if crankshaft needs grinding.

Estimated cost: $3,500-5,500

Typical onset: 120,000-180,000 mi

Symptoms: Deep knock at idle when warm, Oil pressure drops below 10 psi hot idle, Metallic rattling that increases with RPM, Metal flakes in oil filter

Fix: Common in engines that saw extended oil change intervals or were run hard. Full bottom-end rebuild required: crank removal, measurement, possible grinding (0.010" or 0.020" undersize bearings), new main and rod bearings, torque plate honing if cylinders are worn. 18-22 hours total labor. Often combined with piston ring job if engine is already out.

Estimated cost: $4,000-6,000

Typical onset: 60,000-100,000 mi

Symptoms: Clunking when shifting from Park to Drive, Excessive driveline vibration under load, Visible transmission sag when inspected on lift

Fix: The rear transmission mount (pitch stopper) fails from age and turbo torque. 1.5-2 hours labor to replace. Access is tight but straightforward. Aftermarket polyurethane mounts last longer but increase NVH. Replace all four engine/trans mounts if original—they're all 30+ years old.

Estimated cost: $250-450

Typical onset: Any mileage—age and fuel quality dependent

Symptoms: Hard starting when hot, Hesitation or stumble under boost, Lean condition codes, Fuel pump whine audible in cabin

Fix: 30-year-old fuel systems accumulate varnish and sediment. Replace fuel filter (0.5 hours), clean or replace fuel pump sock screen, inspect fuel pressure regulator diaphragm for holes. If pump is original, plan for replacement soon—these Denso units last but 30 years is pushing it. Drop tank for thorough cleaning if car sat for years.

Estimated cost: $150-600

Typical onset: 100,000-140,000 mi

Symptoms: Blue smoke on deceleration, Oil in intercooler piping, Whistling or grinding from turbo, Loss of boost pressure above 3000 RPM

Fix: The TD04 turbo is reliable but not immortal. Shaft play beyond 0.030" or damaged compressor wheels require replacement or rebuild. 4-5 hours labor for R&R. Rebuilds cost $400-600; used OEM turbos are scarce. Verify oil feed and return lines are clear—blocked return lines cook bearings. Replace turbo oil feed banjo bolt filter screens.

Estimated cost: $800-1,400