1997 SUBARU OUTBACK

Typical onset: 80,000-150,000 mi

Symptoms: Coolant seeping from engine block seam below exhaust manifolds, Sweet smell from engine bay, coolant level drops without visible leaks elsewhere, White crusty residue on lower engine block, Eventually overheating if ignored, but often caught early due to visible external leaks

Fix: Replace both head gaskets, resurface heads if warped, replace timing components and water pump while apart. 12-16 labor hours depending on additional valve work needed. 2.2L engines rarely have this issue—if shopping, seek the 2.2L.

Estimated cost: $1,800-2,800

Typical onset: 120,000-180,000 mi

Symptoms: Delayed engagement into gear, especially when cold, Slipping between 2nd and 3rd gear under load, Torque converter shudder at highway speeds, Transmission overheating, burnt fluid smell, Duty solenoid C failure causing limp mode

Fix: External valve body replacement for duty solenoid issues (6-8 hours), but internal clutch pack wear requires full rebuild or replacement. These 4EAT units are less robust than later versions. Used transmissions run $500-800, rebuild 18-22 hours.

Estimated cost: $1,500-3,200

Symptoms: Clunking over bumps from front end, Visible rust perforation around strut towers (salt-belt cars), Steering wheel off-center, alignment won't hold, Upper strut bearing noise on turns

Fix: Replace front struts and mounts (3-4 hours), but inspect strut towers for rust-through. Rust repair requires welding in new metal (8+ hours body work). Cars from rust states often have compromised towers by now. Rear struts less problematic but check mounts.

Estimated cost: $600-1,200 (suspension only); $1,500+ if tower repair needed

Typical onset: 100,000-180,000 mi

Symptoms: Pink or milky transmission fluid (coolant contamination), Transmission overheating even after fluid change, Coolant in transmission pan during service, Sudden transmission failure after radiator leak

Fix: Radiator has integral transmission cooler that can fail internally, mixing coolant and ATF—this kills the transmission. Replace radiator immediately if coolant contamination found (2-3 hours), flush transmission thoroughly (2 hours), pray transmission survives. Add external cooler as insurance ($200 parts, 2 hours).

Estimated cost: $400-800 (radiator/flush); $2,000-3,500 if transmission damaged

Typical onset: 80,000-140,000 mi

Symptoms: Loud exhaust roar on acceleration, Exhaust smell in cabin with heater on, Visible rust holes in front exhaust pipe behind catalytic converters, Rattling from flex joint at front of Y-pipe

Fix: Replace entire Y-pipe assembly from cats back to center muffler. Aftermarket units available but OE fits better. Studs often break on removal. 2-3 hours on a rust-free car, 4-5 hours with seized hardware.

Estimated cost: $400-700

Typical onset: 120,000-200,000 mi

Symptoms: Whining or howling from rear on deceleration, Noise changes with speed, not engine RPM, Metal flakes in rear differential fluid, Gets louder when cold, quieter when warmed up

Fix: Rear diff carrier bearing replacement requires complete disassembly and setup (6-8 hours). Often cheaper to install used differential assembly (3-4 hours). Regular 30k fluid changes prevent this, but most weren't maintained properly.

Estimated cost: $800-1,400