1955 CADILLAC SERIES 62

Symptoms: slipping between gears especially 2nd to 3rd, delayed engagement when shifting to drive, whining or grinding noises, transmission overheating, fluid leaking from front pump or pan

Fix: The 4-speed Hydra-Matic is complex and parts availability is limited. Full rebuild requires disassembly, new clutch packs, bands, seals, and often the oil cooler lines. Expect 16-20 labor hours for a complete rebuild by someone experienced with these units.

Estimated cost: $2,800-4,500

Symptoms: oil pooling under rear of engine, oil soaked bellhousing, blue smoke on startup if severe, steady oil consumption above 1 quart per 500 miles

Fix: Rope-style rear main seals harden and leak with age. Requires transmission removal to access. While you're in there, replace oil pan gasket, timing cover seal, and valve cover gaskets. 10-14 hours labor depending on transmission type and accessibility.

Estimated cost: $1,200-2,200

Symptoms: hard starting when cold, rough idle and stalling, black smoke from exhaust indicating rich condition, hesitation on acceleration, fuel leaking from gaskets or accelerator pump

Fix: Original carbs need complete rebuild kits with new gaskets, needle/seat, accelerator pump, and float adjustments. Ethanol fuel deteriorates old components. Professional rebuild and tuning takes 4-6 hours; DIY kits available but tuning requires experience.

Estimated cost: $450-900

Symptoms: temp gauge climbing above 200°F in traffic, coolant leaks from water pump or core plugs, heater not producing adequate heat, steam from overflow tube

Fix: Original radiators often clogged or corroded internally; water pumps fail and core plugs rust through. Full cooling system overhaul includes radiator recore or replacement, water pump, thermostat, all hoses, core plugs, and flush. 8-12 hours labor.

Estimated cost: $1,500-2,800

Symptoms: ticking or tapping from valve covers especially when cold, loss of power and poor acceleration, excessive oil consumption, rough idle

Fix: Hydraulic lifters collapse or get clogged with sludge from old oil. Rocker arms and pushrods wear at contact points. Lifter replacement alone is 6-8 hours; if valve guides or seats are worn, head removal and machine work adds significantly to cost.

Estimated cost: $800-1,800

Symptoms: dim headlights at idle, ammeter showing discharge, battery repeatedly going dead, generator not charging

Fix: 6-volt generators wear out; voltage regulators fail. Many owners convert to 12-volt alternator system for reliability, which requires new battery, bulbs, and voltage regulator. Generator rebuild is 3-4 hours; 12-volt conversion is 6-8 hours with wiring modifications.

Estimated cost: $600-1,500

Symptoms: soft or spongy brake pedal, brake fluid leaks at wheel cylinders, pulling to one side when braking, increased stopping distance, brake warning light (if equipped)

Fix: Single-circuit drum brake system with old rubber components. Master cylinder, wheel cylinders, and flex hoses deteriorate. Complete brake system overhaul with all cylinders, shoes, hardware, drums turned, and lines flushed is essential. 8-10 hours labor.

Estimated cost: $1,200-2,000