The 1997 Acura CL was Honda's first attempt at a personal luxury coupe, sharing its platform with the Accord. While generally reliable, it suffers from automatic transmission failures and Honda's notorious V6 head gasket issues that can cascade into catastrophic engine damage if ignored.
Automatic Transmission Failure (4-Speed)
Common · high severityTypical onset: 80,000-140,000 mi
Symptoms: Harsh or delayed 2-3 shift, especially when cold, Slipping between gears under acceleration, Shuddering during light throttle at 35-45 mph, Transmission fluid darkened or smells burnt
Fix: The 4-speed automatic (especially behind the V6) develops internal clutch pack wear and pressure control issues. Rebuild requires 12-16 hours; many techs recommend replacement with low-mileage used unit (8-10 hours). Flush and new external oil cooler mandatory during any trans work.
Estimated cost: $2,200-3,800
V6 Head Gasket Failure (3.0L Only)
Common · high severityTypical onset: 90,000-150,000 mi
Symptoms: White smoke from exhaust on cold start, Coolant loss with no visible leaks, Milky oil on dipstick or oil cap, Overheating or erratic temperature gauge, Rough idle and misfire codes after engine warms up
Fix: Honda's C-series V6 head gasket design allows coolant into cylinders. Requires removing both heads, resurfacing, and new gaskets plus timing belt service while apart (18-24 hours total). If coolant contaminated oil and owner kept driving, expect bearing damage requiring full rebuild. Always pressure-test cooling system on pre-purchase inspection.
Estimated cost: $1,800-2,800 for gaskets only; $3,500-5,500 if bearings damaged
Lower Ball Joint Separation
Occasional · high severityTypical onset: 100,000-160,000 mi
Symptoms: Clunking over bumps from front end, Excessive play in wheel when jacked up and shaken, Wandering steering or pulling to one side, Tire wearing on inside or outside edge
Fix: Front lower ball joints wear and can separate catastrophically (subject of NHTSA recall but many went unrepaired). Ball joint is pressed into control arm; replacement requires control arm removal, press work, and alignment (3-4 hours per side). Check at every oil change after 80k miles.
Estimated cost: $350-600 per side
Ignition Switch Electrical Failure
Occasional · medium severitySymptoms: Dash lights flicker or go out when key turned, Intermittent no-start with no clicking, Accessories work but starter won't engage, Key feels loose or won't return from start position
Fix: Ignition switch internal contacts fail (NHTSA recall 98V176000). Switch assembly is steering column-mounted; replacement requires column cover removal and electrical connector transfer (1.5-2 hours). Some owners bypass recall by wiggling key. Don't—this strands you unpredictably.
Estimated cost: $180-320
Transmission Mount Deterioration
Common · low severityTypical onset: 70,000-120,000 mi
Symptoms: Clunk when shifting from Park to Drive or Reverse, Vibration at idle in gear with brake on, Excessive engine movement visible from engine bay during acceleration
Fix: Hydraulic transmission mount fails, allowing drivetrain to shift excessively. This accelerates CV axle and transmission wear. Replace all three motor mounts as a set (upper, lower, rear trans mount) for best results—around 3 hours labor. Upper mount requires engine support.
Estimated cost: $350-550 for all three mounts
Fuel Filter Clogging and Fuel Pump Strain
Occasional · medium severityTypical onset: 100,000+ mi
Symptoms: Hesitation or stumble during hard acceleration, Loss of power above 4,000 RPM, Difficulty starting when fuel tank below 1/4, Check engine light with lean codes (P0171/P0174)
Fix: In-tank fuel filter often neglected; clogged filter strains pump. Filter replacement requires tank drop (2.5-3 hours). If pump is whining or weak pressure (<45 PSI), replace pump assembly at same time since tank is already down. Many techs see pump failure by 150k if filter was never changed.
Estimated cost: $280-450 filter only; $550-750 with pump
Buy the 2.2L I4 with manual transmission if you can find one; avoid the V6 automatic unless full service records prove transmission fluid was changed religiously and head gaskets already replaced.
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.