The 1994 Del Sol is a fun targa-top coupe built on the Civic platform, but its removable roof design creates unique water leak and chassis flex issues beyond typical Honda reliability. The VTEC models are more desirable but share the same structural and sealing problems.
Targa Top Seal Leaks and Water Intrusion
Common · medium severitySymptoms: Water pooling in footwells after rain or car wash, Musty smell in cabin, Wet carpeting under seats, Corrosion on floor pan and seat rails, Condensation inside headliner or dome light
Fix: Replace all four targa top seals (two on roof panel, two on body rails) plus check and reseal rear window gasket. Labor is 2-3 hours including disassembly and adjustment. Often requires multiple attempts to get seals seated correctly. Check drain tubes in both A-pillars — they clog with debris and cause overflow into cabin.
Estimated cost: $300-600
Automatic Transmission Failure (Non-VTEC Models)
Common · high severityTypical onset: 100,000-150,000 mi
Symptoms: Slipping between gears especially 2nd to 3rd, Delayed engagement when shifting to Drive, Shuddering during acceleration, Burnt transmission fluid smell, Check Engine Light with transmission codes
Fix: The automatic transmission in these cars is notoriously weak, especially behind the 1.5L. Rebuild requires 8-12 hours and includes all clutch packs, bands, and seals. Many shops recommend replacement with a used unit (5-7 hours labor) instead due to rebuild cost. Add 1 hour for transmission oil cooler replacement which commonly fails simultaneously.
Estimated cost: $1,800-3,200
Structural Chassis Flex and Cracking
Occasional · high severityTypical onset: 120,000+ mi
Symptoms: Squeaks and creaks over bumps from B-pillar area, Doors difficult to close or pop open slightly when driving, Visible cracks in floor pan near seat mounts, Separation visible at rear bulkhead seams, Windshield cracking without impact
Fix: The targa design removes critical roof structure, causing flex that cracks welds at stress points. Proper repair requires welding in reinforcement plates at rear bulkhead and floor pan, plus potential subframe connectors. Labor intensive at 12-16 hours for comprehensive fix. Many owners live with it or use chassis braces as band-aid.
Estimated cost: $1,200-2,500
VTEC Solenoid and Oil Pressure Issues (1.6L Only)
Occasional · medium severityTypical onset: 80,000-140,000 mi
Symptoms: Check Engine Light with P1259 VTEC code, Loss of power above 5,000 RPM, No VTEC engagement (feels like driving 1.5L), Rattling from valve cover at high RPM, Low oil pressure warning
Fix: VTEC solenoid screens clog with sludge if oil changes were neglected. Replace solenoid, gasket, and clean oil passages (2 hours). If oil pressure switch failed, another hour. If internal VTEC rocker assembly is damaged from running low on oil, requires valve cover removal and rocker shaft work (5-6 hours total).
Estimated cost: $250-900
Exterior Lighting Circuit Failures
Common · low severitySymptoms: Headlights pop up but don't illuminate, One headlight works intermittently, Tail lights or brake lights fail on one side, Dashboard lighting flickers, Turn signals flash rapidly without bulb failure
Fix: Ground connections behind bumpers corrode badly. Five NHTSA recalls addressed various lighting issues. Common fixes: clean all ground points (1 hour), replace headlight retractor motor relays (0.5 hours), or trace wiring for shorts in bumper harness. Retractor motors themselves rarely fail but pivots seize requiring lubrication.
Estimated cost: $80-350
Engine Freeze Plug Corrosion and Coolant Leaks
Occasional · medium severityTypical onset: 130,000+ mi
Symptoms: Coolant dripping from back of engine block, Overheating despite no visible leaks up front, Sweet smell in cabin or under hood, Low coolant level with no obvious source, White residue on rear of block
Fix: Rear freeze plugs corrode through on high-mileage engines. Requires pulling engine or transmission for full access. Most shops pull transmission (7-9 hours labor) to replace all freeze plugs preventively. If only doing rears, some techs access through wheel well but it's miserable work. Always replace all plugs once you're in there.
Estimated cost: $600-1,200
Distributor O-Ring Oil Leaks
Common · low severityTypical onset: 60,000-100,000 mi
Symptoms: Oil pooling on top of transmission bell housing, Oil dripping near distributor base, Slight oil burning smell, Low oil level without external drips on ground
Fix: The distributor O-ring hardens and leaks oil down the back of the engine. Simple fix: remove distributor, replace O-ring and seal, reinstall and retime (1-1.5 hours). Critical to mark distributor position before removal or you'll spend extra time setting timing. Use genuine Honda O-ring as aftermarket versions fail quickly.
Estimated cost: $120-250
Buy a manual VTEC model with documented maintenance and dry floors; avoid automatics and any car showing water damage or chassis cracks — the novelty factor doesn't justify major structural repairs.
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.