The 2019 IS 350 with the 2GR-FSE V6 is generally reliable, but this generation suffers from carbon buildup issues on direct-injection engines and a known fuel pump defect covered by recall. Watch for transmission cooler leaks and mount wear on higher-mileage examples.
Carbon Buildup on Intake Valves (Direct Injection)
Common · medium severityTypical onset: 60,000-100,000 mi
Symptoms: Rough idle, especially when cold, Hesitation or stumbling on acceleration, Misfires under load (P0300-P0306 codes), Reduced fuel economy
Fix: Walnut blasting intake valves through removed intake manifold. 4-6 hours labor depending on tech experience. Some shops use chemical cleaning but walnut media is more effective long-term.
Estimated cost: $600-1,200
Fuel Pump Failure (NHTSA Recall 20V-134)
Occasional · high severitySymptoms: No-start condition, cranks but won't fire, Stalling while driving, especially under load, Engine cuts out then restarts intermittently, Check engine light with low fuel pressure codes
Fix: Covered under recall—dealer replaces low-pressure fuel pump assembly. If recall not performed and pump fails out of warranty, 2-3 hours labor to drop tank and replace pump module.
Estimated cost: $0 (recall) or $800-1,400 if self-pay
Transmission Oil Cooler Line Leaks
Occasional · medium severityTypical onset: 80,000-120,000 mi
Symptoms: ATF drips or puddles under front of vehicle, Pink or red fluid visible near radiator area, Low transmission fluid warnings on gauge cluster, Harsh or delayed shifts if fluid level drops significantly
Fix: Replace cooler lines and fittings where they connect to radiator or external cooler. 2-3 hours labor including fluid refill and system purge. Check for cooler contamination if leak was severe.
Estimated cost: $500-900
Transmission Mount Deterioration
Common · low severityTypical onset: 70,000-110,000 mi
Symptoms: Clunk or thud when shifting from Park to Drive or Reverse, Vibration through chassis during acceleration, Excessive drivetrain movement visible during throttle blip, Increased NVH on rough roads
Fix: Replace rear transmission mount (most common failure point on this platform). 1.5-2 hours labor, straightforward job. Consider replacing both if one has failed.
Estimated cost: $300-550
Water Pump Weep (Early Signs of Failure)
Occasional · medium severityTypical onset: 90,000-130,000 mi
Symptoms: Coolant seepage or dried residue around pump housing, Squealing or grinding noise from front of engine, Slight coolant smell after driving, Coolant level dropping slowly over time
Fix: Replace water pump, thermostat, and serpentine belt while in there. 3-4 hours labor on the 2GR-FSE due to tight engine bay. Flush and refill coolant system.
Estimated cost: $700-1,100
VVT-i Actuator Rattle (Cold Start)
Occasional · low severityTypical onset: 80,000+ mi
Symptoms: Rattling or ticking noise from engine on cold start, lasts 2-5 seconds, Noise disappears once oil pressure builds, Check engine light with P0010, P0011, P0020, or P0021 codes if severe, No performance issues typically
Fix: Replace VVT-i oil control valve(s) and/or cam gear actuators. Some cases resolve with oil change to correct viscosity (0W-20). If actuator gears are worn, 4-5 hours labor per bank to replace cam gears.
Estimated cost: $150-300 (solenoid only) or $1,200-2,000 (actuator replacement)
Solid buy if the fuel pump recall is completed and carbon buildup addressed—very few catastrophic failures, mostly age and mileage wear items on an otherwise bulletproof platform.
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.