1998 ROLLS-ROYCE SILVER SPIRIT

Typical onset: 70,000-120,000 mi

Symptoms: pink milkshake in coolant reservoir, transmission slipping or delayed engagement, overheating transmission, coolant loss with no external leaks

Fix: The factory cooler integrated into the radiator end tank corrodes internally, mixing coolant and ATF. Requires radiator replacement or external cooler retrofit, complete fluid flush of both systems, and often transmission filter/pan service. Caught early: 6-8 hours. If trans internals are damaged from coolant ingestion, add full rebuild. Labor: 8-12 hours for cooler/radiator job alone.

Estimated cost: $1,800-3,500

Typical onset: 80,000-140,000 mi

Symptoms: brake pedal going to floor, brake warning light, hissing from under hood, hard pedal with poor braking, green fluid leaks under vehicle

Fix: The Rolls hydraulic system uses mineral oil (LHM) and all rubber components age poorly. High-pressure hoses crack, accumulators lose pressure, and the entire system may need re-sealing. NHTSA recall covered some hoses but didn't solve systemic aging. Full system overhaul with all hoses, seals, accumulator: 12-16 hours. Parts are Rolls-specific and expensive.

Estimated cost: $3,500-6,500

Typical onset: 90,000-150,000 mi

Symptoms: heavy knocking on cold start, low oil pressure at idle, excessive oil consumption (more than 1qt per 500 miles), metallic rattling from crankcase, oil contamination in coolant

Fix: The 6.75L has soft pistons and marginal oiling to the mains under neglect. Extended oil change intervals destroy bearings. Rebuild includes pistons, rings, bearings, often crank machining. In-car head gasket jobs run 18-22 hours; full rebuild with short-block work: 35-50 hours depending on machine shop turnaround. Parts availability is decent but not cheap.

Estimated cost: $8,000-15,000

Typical onset: 60,000-100,000 mi

Symptoms: harsh or delayed 1-2 shift, transmission won't upshift past 2nd, clunking during acceleration or deceleration, check engine light with shift solenoid codes

Fix: The GM 4L80E transmission uses solenoids that fail from heat and fluid contamination. Mounts also collapse, causing driveline vibration and harsh engagement. Solenoid replacement in-car: 4-6 hours (pan drop, valve body access). Mount replacement adds 2-3 hours. Always change fluid and filter during solenoid work.

Estimated cost: $1,200-2,200

Symptoms: no cold air, refrigerant leak that won't hold charge, musty smell from vents, water on passenger floor, climate control display issues

Fix: Evaporator cores corrode and leak inside the dash assembly. Full dash removal required on this car—nightmare job. 20-28 hours labor. Climate control modules also fail (capacitors), but evap core leaks are the expensive killer. Blend door actuators add another layer of potential failure.

Estimated cost: $3,500-5,500

Typical onset: 70,000-110,000 mi

Symptoms: car sits low in rear, compressor running constantly, suspension warning light, one corner sagging, rough ride quality

Fix: Height sensors, air springs, and hydraulic rams all age out. Compressor overworks when leaks develop. Rear springs: 3-4 hours each side. Compressor: 4-5 hours. Full four-corner refresh with sensors: 16-20 hours. Aftermarket coil conversion kits exist but purists hate them.

Estimated cost: $2,500-5,000