1984 FSO POLONEZ

Typical onset: 40,000-80,000 mi

Symptoms: Severe clunking when shifting or accelerating, Excessive vibration at idle, Gear lever shaking or hard engagement, Transmission visibly sagging when inspected from below

Fix: Transmission mounts were marginal from factory and rubber compounds degrade badly. Replacement requires lifting transmission slightly and often reveals damaged crossmember rubber bushings needing concurrent replacement. 2-3 hours labor, parts sourcing can take weeks.

Estimated cost: $300-600

Typical onset: 60,000-100,000 mi

Symptoms: White smoke from exhaust, Coolant loss without visible leaks, Overheating under load, Milky oil on dipstick or oil cap, Rough idle and misfiring

Fix: The Fiat 1600 engine overheats easily due to marginal cooling system design. Head gasket fails, head warps, requires removal, resurfacing, and replacement. Often discover worn camshaft and lifters during teardown. Complete job 10-14 hours including resurface time at machine shop.

Estimated cost: $1,200-2,200

Typical onset: 70,000-120,000 mi

Symptoms: Loud ticking or clattering from valve train, Noise worse on cold starts, may diminish when warm, Loss of power and rough running, Check one or more cylinders running lean or rich

Fix: Poor oil quality over vehicle life destroys hydraulic lifters and cam lobes. Requires cylinder head removal to access camshaft and lifters. If cam lobes worn, camshaft replacement mandatory. Plan 8-12 hours labor, often done alongside head gasket work.

Estimated cost: $900-1,800

Typical onset: 80,000-150,000 mi

Symptoms: Visible wobble on crankshaft pulley at idle, Rubber ring separating from hub, Severe vibration throughout RPM range, Serpentine belt tracking poorly or shredding

Fix: Rubber bonding fails on balancer, allowing outer ring to shift or separate. If it flies apart at speed, can destroy timing cover, radiator, and other components. Replacement requires removing accessories and pulleys. 3-4 hours labor, balancer often on backorder.

Estimated cost: $400-700

Symptoms: Transmission fluid pooling under vehicle, Slipping gears or delayed engagement, Burnt transmission fluid smell, Low fluid level on dipstick

Fix: Steel cooler lines rust through at bends and fittings, especially in salt-belt cars. Replacement lines often NLA, requires fabrication or universal line adaptation. 2-3 hours labor plus transmission fluid flush. If driven low on fluid, internal damage likely.

Estimated cost: $350-650

Symptoms: Hard starting or no-start condition, Engine stumbling or stalling under acceleration, Rough idle and poor throttle response, Fuel smell around tank or engine bay

Fix: Fuel tanks rust internally on these cars, sending debris through system. Requires fuel filter replacement every 10,000 miles if tank not replaced. Often need carburetor cleaning or rebuild, fuel pump replacement, and tank sealing or replacement. Filter change 0.5 hours, full system service 6-10 hours.

Estimated cost: $150-1,500