1986 FSO POLONEZ

Typical onset: 70,000-120,000 mi

Symptoms: Severe vibration during acceleration, Clunking when shifting gears, Transmission appears to sag visibly, Difficulty engaging first gear from stop

Fix: Original rubber mounts deteriorate badly with age even on low-mileage examples. Requires lifting transmission partially (2-3 hours labor) and replacing all mounts as a set since they age uniformly. Access is tight and often requires removing heat shields.

Estimated cost: $350-600

Typical onset: 60,000-100,000 mi

Symptoms: Loud ticking or tapping from valve cover at idle, Noise worsens when cold, Loss of power at higher RPM, Check engine hesitation on acceleration

Fix: The Fiat 1600 engine uses hydraulic lifters that fail from old oil and lack of maintenance. Single lifter replacement is 3-4 hours but most techs recommend doing all eight while the valve cover is off. Often find camshaft wear if ignored too long, adding major expense.

Estimated cost: $450-800 for all lifters, $1,800-2,800 if camshaft damaged

Typical onset: 80,000-140,000 mi

Symptoms: White smoke from exhaust, Coolant loss with no visible leaks, Bubbling in coolant reservoir, Rough idle and loss of compression, Milky oil on dipstick

Fix: Common on neglected cooling systems where original gasket materials have aged. Requires 8-10 hours for head removal, resurfacing ($150-250 at machine shop), and reinstallation. Often discover cracked head on high-mileage examples requiring full replacement ($400-700 used).

Estimated cost: $1,200-2,200 with resurface, $2,000-3,500 if head replacement needed

Symptoms: Hard starting when warm, Black smoke at idle, Fuel smell in cabin, Stalling at stop lights, Erratic idle speed hunting between 500-1200 RPM

Fix: The Weber carburetor uses float needles and gaskets that deteriorate after 30+ years. Rebuild kits are hard to source but available through European suppliers. Complete rebuild takes 4-5 hours including tuning. Some owners convert to aftermarket carbs but originality suffers.

Estimated cost: $400-700 for proper rebuild and tune

Typical onset: 90,000-150,000 mi

Symptoms: Severe vibration at all RPM ranges, Squealing or grinding from front of engine, Visible wobble on crankshaft pulley, Alternator belt repeatedly throwing or shredding

Fix: Rubber damper ring separates from hub due to age and heat cycles. If it fails completely, can damage crankshaft and timing components. Replacement requires removing accessory belts and pulleys, 2-3 hours labor. Original parts nearly impossible to find; aftermarket fits vary.

Estimated cost: $350-650

Symptoms: Transmission fluid puddles under car, Burned transmission smell, Slipping gears after highway driving, Low fluid level on dipstick

Fix: Steel cooler lines rust through at frame contact points and fittings. Requires fabricating or sourcing custom lines (2-3 hours). Some techs bypass cooler entirely in mild climates but risks overheating on highway use. Flush transmission after repair to clear contaminants.

Estimated cost: $300-550

Symptoms: Engine stalling under load, Difficulty starting, Sputtering at highway speeds, Fuel pump cycling loudly

Fix: Decades-old fuel tanks rust internally even on garage-kept examples. Sediment clogs inline filters quickly (30 minutes labor each). Long-term fix requires tank removal, cleaning or coating (6-8 hours), and replacing all rubber fuel lines which become brittle. Replace fuel pump while tank is out.

Estimated cost: $150-250 for filters and lines, $800-1,400 for complete fuel system rehab