The second-gen Camaro is a solid platform with typical GM drivetrain durability, but the TH350/TH400 automatics and carbureted engines show their age. Body rust and front subframe fatigue are the real killers if you're buying from the rust belt.
TH350/TH400 Transmission Failures
Common · high severityTypical onset: 90,000-150,000 mi
Symptoms: Slipping between 1st-2nd or 2nd-3rd shifts under load, Delayed engagement when shifting into drive or reverse, Burnt transmission fluid smell, dark red or brown fluid, Hard or erratic shifting, especially when cold
Fix: Full rebuild with clutch packs, bands, seals, and torque converter. 8-12 hours labor depending on shop familiarity. Often find worn governor gears and valve body issues. If cooler lines contaminated the trans, expect complete flush and new cooler.
Estimated cost: $1,800-3,200
Carburetor Issues - Rochester 2-bbl and Quadrajet 4-bbl
Common · medium severitySymptoms: Hard starting when cold or hot, requiring multiple cranks, Hesitation or stumbling on acceleration, Black smoke from exhaust, fouled plugs from running rich, Rough idle, hunting or surging at steady cruise, Fuel leaks at base gasket or accelerator pump
Fix: Complete rebuild kit with jets, gaskets, float, needle/seat, and accelerator pump. 3-5 hours labor including removal, rebuild, and tuning. Quadrajets need expert attention or they'll never run right. Many shops just swap for Edelbrock aftermarket at this age due to worn throttle shafts.
Estimated cost: $400-900
Engine Oil Consumption - Worn Piston Rings
Common · medium severityTypical onset: 120,000-180,000 mi
Symptoms: Blue smoke on startup or deceleration, Burning through 1+ quart of oil every 500-1,000 miles, Low compression readings on cylinder test, especially lower cylinders, Fouled spark plugs with oil deposits
Fix: Requires engine removal and full teardown for ring replacement. 20-30 hours labor. At this mileage, you're also doing bearings, timing set, oil pump, and valve work. Most owners opt for complete rebuild or replacement long block rather than just rings.
Estimated cost: $3,500-6,500
Front Subframe and Control Arm Bushing Deterioration
Occasional · high severityTypical onset: 80,000-120,000 mi
Symptoms: Clunking over bumps or during hard braking, Wandering steering, excessive play in wheel, Uneven tire wear on inside or outside edges, Visible cracks or rust in subframe at control arm mounts, Car darts left or right under braking
Fix: Control arm bushings alone are 4-6 hours, but if subframe is rusted or cracked (common in northern cars), you're looking at full subframe replacement or welding reinforcement. Polyurethane bushing upgrades recommended. Alignment required after any suspension work.
Estimated cost: $800-2,000
Body Rust - Floors, Quarters, and Rear Window Shelf
Common · high severitySymptoms: Soft or perforated floor pans under carpet, especially driver side, Bubbling paint at quarter panel lower edges behind rear wheels, Rust through at rear window package tray causing water leaks, Rocker panels disintegrating, jack points unsafe, Trunk floor rust, particularly at wheel wells and seams
Fix: Cosmetic repair requires cutting out rust and welding in patch panels or full replacement panels. Floor pans: 12-20 hours. Quarter panels: 20-30 hours per side. Structural rust at subframe or torque boxes is frame-off territory, 80+ hours. Many cars are too far gone for economical repair.
Estimated cost: $2,500-12,000
Fuel System Varnish and Vapor Lock
Occasional · medium severitySymptoms: Stalling in hot weather or after hard running, Difficulty restarting when engine is heat-soaked, Fuel starvation at highway speeds, surging or cutting out, Gas smell in cabin or engine bay from permeated rubber lines
Fix: Replace all rubber fuel lines, install heat shield on fuel line near exhaust, clean or replace fuel pump and sock filter in tank. Tank often needs dropping and cleaning or replacement due to decades of varnish buildup. 6-10 hours labor depending on line routing and tank condition.
Estimated cost: $600-1,400
Steering Box Play and Leakage
Occasional · medium severityTypical onset: 100,000-150,000 mi
Symptoms: Excessive steering wheel play, 2-3 inches before wheels turn, Power steering fluid leaking from sector shaft seal, Groaning or whining from steering box during turns, Wandering on highway requiring constant correction
Fix: Rebuild with seal kit and sector shaft adjustment: 4-6 hours. Many boxes are worn beyond adjustment and need replacement or professional rebuild. Aftermarket upgraded boxes (Borgeson, AGR) are common swaps at this age.
Estimated cost: $500-1,200
Buy one if the body and subframe are solid—mechanical issues are manageable, but rust repair costs more than the car is worth.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.