The 1996 Silver Spur uses Rolls-Royce's venerable 6.75L V8 with hydraulic tappets and a GM 4-speed automatic. These are hand-built luxury tanks that can go 200k+ miles with fastidious maintenance, but deferred service and age-related deterioration of seals, hoses, and hydraulics will bankrupt the unprepared.
Hydraulic System Deterioration (Ride Height, Brakes, Suspension)
Common · high severityTypical onset: 80,000-150,000 mi
Symptoms: Car sinks on one corner or all four after sitting overnight, Harsh ride or bottoming out over bumps, Brake pedal feels spongy or requires excessive effort, Green hydraulic fluid pooling under car (Castrol LHM)
Fix: These cars use a central hydraulic system (mineral oil, NOT DOT fluid) for self-leveling suspension, brake assist, and ride control. Aged accumulators (spheres), perished hoses, and leaking rams are typical. Plan on replacing all four suspension spheres, multiple hydraulic lines, and often the brake master cylinder or height corrector valves. 12-18 hours labor for comprehensive overhaul.
Estimated cost: $3,500-6,500
Engine Oil Leaks and Hydraulic Tappet Noise
Common · medium severityTypical onset: 60,000-120,000 mi
Symptoms: Loud ticking or clattering on cold start that may persist, Oil weeping from valve covers, front cover, or oil pan, Blue smoke on startup if valve guide seals are involved
Fix: The 6.75L uses hydraulic tappets that bleed down and clatter if oil changes are extended or wrong-spec oil is used. Valve cover gaskets, front/rear main seals, and oil pan gaskets all weep with age. Tappet replacement requires head removal (20+ hours per bank if doing both). Expect gasket refresh and RTV everywhere; valve cover gaskets alone are 4-6 hours due to tight engine bay.
Estimated cost: $2,000-8,000
Transmission Cooler and Mount Failure
Common · medium severityTypical onset: 70,000-130,000 mi
Symptoms: Transmission fluid leaking from cooler lines at radiator, Clunking when shifting into Drive or Reverse, Excessive transmission movement felt through shifter
Fix: The GM 4L80E transmission cooler lines corrode at the crimps and leak. Transmission mounts crack from the engine's weight and torque. Cooler line replacement is 2-3 hours; both mounts are 3-4 hours due to subframe access. If ignored, low fluid will destroy the transmission (rebuild $4k-6k). NHTSA recall addressed some cooler concerns but not all.
Estimated cost: $800-1,500
ABS Modulator and Accumulator Failure
Occasional · high severityTypical onset: 90,000-140,000 mi
Symptoms: ABS warning light illuminated, Brake pedal pulses or vibrates at low speeds without ABS activation, Loss of power brake assist, Hard pedal and extended stopping distances
Fix: The Teves ABS modulator and hydraulic brake accumulator (different from suspension accumulators) fail internally. Modulator rebuild or replacement is dealer/specialist work; used units are gamble. Accumulator alone is 3-4 hours, modulator adds another 4-6 hours due to bleeding and calibration. Parts are NLA from Rolls; aftermarket or used only.
Estimated cost: $2,500-5,000
Fuel System Varnish and Injector Clogging
Occasional · medium severitySymptoms: Rough idle, misfires, or hesitation under acceleration, Hard starting after sitting for days, Check engine light with lean/rich codes
Fix: Cars that sit or use stale fuel develop varnish in the Lucas mechanical fuel injection system (Bosch K-Jetronic style). Injectors clog, fuel filter clogs, and fuel lines corrode internally. Full injector cleaning or replacement plus fuel filter, fuel pressure regulator service, and system flush. 6-8 hours labor; injectors are expensive and hard to source new.
Estimated cost: $1,200-2,800
Cooling System Hoses and Water Pump
Occasional · medium severityTypical onset: 80,000-120,000 mi
Symptoms: Coolant weeping from hose connections or pump weep hole, Temperature gauge creeping toward hot in traffic, Coolant smell in cabin or visible steam
Fix: Dozens of coolant hoses, many OEM molded shapes that crack at bends. Water pump bearings fail. Do all hoses and pump as a package; labor is 8-12 hours due to tight engine bay and need to remove ancillaries. Thermostat and expansion tank often replaced at same time. This is preventive maintenance on a 28+ year old car.
Estimated cost: $2,000-3,500
Electrical Gremlins: Window Regulators, Door Locks, HVAC Modules
Common · low severitySymptoms: Power windows slow or intermittent, Central locking fails to lock/unlock all doors, Climate control stuck on one setting or blower inoperative, Instrument cluster gauges or lights dead
Fix: Age and moisture kill switches, relays, and motors. Window regulators seize (2-3 hours per door). HVAC modules have failing solder joints (specialist repair or used replacement, 4-6 hours). Door lock actuators are obsolete; used or aftermarket retrofits required. Budget time and parts-hunting patience, not just money.
Estimated cost: $500-2,000
Buy only if you have a $10k reserve fund, access to a marque specialist, and enjoy the journey of owning automotive art—these are not daily drivers for the budget-conscious.
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.