The 1964 Catalina is a solid full-size Pontiac built on GM's B-body platform, but 60-year-old engineering means you're dealing with worn powertrain mounts, tired automatics, fuel system degradation, and engine rebuilds if original internals haven't been refreshed.
Two-Speed Automatic (Powerglide/Super Hydramatic) Failure
Common · high severityTypical onset: 80,000-120,000 mi on original build
Symptoms: Slipping between gears or delayed engagement, Burnt transmission fluid smell or dark/metallic fluid, Won't shift out of low gear or freewheels in drive, Harsh or clunky shifts with jerking
Fix: Full rebuild required—internal clutches, bands, seals, and valve body work. Expect 12-16 hours labor for R&R and rebuild. Many units are on borrowed time if never rebuilt.
Estimated cost: $2,200-3,800
Worn Engine Mounts and Transmission Mount
Common · medium severitySymptoms: Excessive engine movement or clunking on acceleration/deceleration, Vibration through floorboards at idle, Shifter feels loose or transmission linkage binds, Driveline shudder during takeoff
Fix: Rubber deteriorates after decades regardless of mileage. Replace all three motor mounts plus transmission mount. 3-4 hours labor, straightforward bolt-on job.
Estimated cost: $400-700
Piston Ring Wear and Cylinder Bore Glazing
Occasional · high severityTypical onset: 100,000+ mi or unknown history
Symptoms: Blue smoke on startup or under load, High oil consumption (quart every 500-800 miles), Loss of compression and power, Blowby visible from oil filler or PCV
Fix: Requires full teardown, bore/hone cylinders, new pistons/rings, main and rod bearings, gaskets. 25-35 hours labor for complete job. Many survive original but are marginal by now.
Estimated cost: $3,500-6,000
Valve Train Wear (Lifters, Pushrods, Rocker Arms)
Common · medium severityTypical onset: 70,000-110,000 mi
Symptoms: Ticking or tapping noise from valve covers, especially cold, Loss of power and rough idle, Valves out of adjustment or stuck lifters, Oil pressure fluctuation
Fix: Remove heads for inspection; replace hydraulic lifters, adjust valves, lap or replace valves if pitting/carbon present. Full valve job runs 14-18 hours labor.
Estimated cost: $1,800-3,200
Fuel System Degradation (Tank, Lines, Filter, Pump)
Common · medium severitySymptoms: Hard starting or stalling after sitting, Fuel smell in cabin or trunk area, Weak fuel delivery or surging under load, Rust flakes in fuel filter or carb bowls
Fix: Steel tanks rust from inside out; rubber fuel lines crack and leak. Replace tank, sender unit, all rubber lines, mechanical pump, and inline filter. 6-9 hours labor depending on rust severity.
Estimated cost: $800-1,500
Rear Main Seal Leakage
Occasional · low severitySymptoms: Oil drips from bell housing area onto ground, Oil accumulation on back of oil pan or transmission case, Clutch contamination (if manual, rare on Catalina)
Fix: Rope-style rear main seal hardens over time. Requires transmission removal to access. 8-10 hours labor, often done during transmission or clutch work.
Estimated cost: $900-1,400
Cooling System Component Failure (Radiator, Water Pump, Hoses)
Common · medium severitySymptoms: Overheating in traffic or on hills, Coolant leaks from hose connections or radiator seams, Squealing or grinding from water pump bearing, Heater performance poor or coolant smell in cabin
Fix: Original brass radiators corrode internally; water pumps seize or leak. Replace radiator core or re-core, new water pump, all hoses, thermostat. 5-7 hours labor.
Estimated cost: $700-1,300
Buy one if you're handy and patient—solid bones, but expect to rebuild or refresh major components on any untouched example.
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.