1960 CADILLAC SERIES 62

Typical onset: 80,000-120,000 mi or after long storage

Symptoms: Slipping between gears, especially 2nd to 3rd, Delayed engagement when shifting into Drive or Reverse, Harsh shifts or complete loss of forward gears, Transmission overheating due to clogged oil cooler

Fix: Full rebuild of the 4-speed Hydra-Matic, including clutch packs, seals, bands, and servicing the separate oil cooler and lines. Expect 12-16 hours labor for removal, rebuild, and reinstall. Core transmission rebuilds often require specialist shops familiar with pre-'61 Hydra-Matics.

Estimated cost: $2,800-4,500

Symptoms: Hard starting, especially when cold, Rough idle and hesitation on acceleration, Stalling after short drives, Fuel odor from deteriorated rubber lines

Fix: Complete carburetor rebuild (Carter or Rochester 4-barrel), replacement of fuel filter, fuel pump, and all rubber fuel lines. Tank may need cleaning or lining if car sat for years. Figure 6-8 hours for thorough fuel system overhaul.

Estimated cost: $800-1,400

Typical onset: 100,000-150,000 mi

Symptoms: Lifter tick that doesn't quiet down after warm-up, Blue smoke on startup or deceleration, Low oil pressure at idle (under 10 psi), Excessive oil consumption (1 qt per 500-800 miles)

Fix: Valve job with new guides, seals, and lifters, often combined with head gasket replacement. If main or rod bearings show wear, you're looking at a full rebuild. Valve job alone: 14-18 hours. Full rebuild with crank work: 30-40 hours.

Estimated cost: $2,200-3,800 for valve job; $5,500-8,500 for complete rebuild

Typical onset: 120,000+ mi or neglected oil changes

Symptoms: Deep knocking sound from lower engine, worse under load, Metal shavings in oil or on magnetic drain plug, Oil pressure drops significantly at operating temperature, Vibration at idle that worsens with RPM

Fix: Engine must come out for crank removal, inspection, and possible machining. New main and rod bearings, thrust washers, and often a line bore. If crank is scored beyond .030" under, you need a new or reground crank. 25-35 hours labor for R&R and machine work coordination.

Estimated cost: $4,500-7,000

Typical onset: 70,000+ mi or 50+ years of age

Symptoms: Clunking when shifting into gear, Excessive vibration at idle in Drive, Visible engine movement when revving in Park, Transmission crossmember showing cracks or sag

Fix: Replace all engine and transmission mounts (typically 3-4 mounts total). Straightforward job but access can be tight. 3-4 hours labor. Mounts are often NLA from Cadillac, requiring aftermarket or custom fabrication.

Estimated cost: $450-750

Typical onset: 90,000-130,000 mi or after overheating

Symptoms: Coolant weeping from head/block surface, usually rear corners, White residue or crusty deposits along head seam, Overheating under load or in traffic, Occasional coolant smell but no visible leak from hoses

Fix: Remove both heads, resurface if warped, and install new gaskets with updated torque specs. Often done alongside valve job if you're in there. 12-16 hours labor for gaskets alone, more if heads need machining.

Estimated cost: $1,800-2,800