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2007 LEXUS IS 350

3.5L V6•RWD•AUTOMATIC•gas
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5-Year Cost of Ownership
$27,404 maintenance + known platform issues
~$5,481/yr · 460¢/mile equivalent · $6,345 maintenance + $3,859 expected platform issues

Common Problems & Known Issues

The 2007 IS 350 with the 2GR-FSE direct-injection V6 is a solid performer, but the early direct-injection tech brings carbon buildup issues and a subset developed catastrophic engine failures due to piston ring defects—a known weak point that can cost you an engine.

Carbon Buildup on Intake Valves (Direct Injection)

Common · medium severity
Typical onset: 60,000-100,000 mi
Symptoms: rough idle, hesitation on acceleration, misfires, reduced fuel economy, check engine light for misfire codes
Fix: Walnut blasting the intake valves is the proper fix—requires intake manifold removal, 4-6 hours labor. Fuel system cleaners do nothing for direct-injection carbon.
Estimated cost: $500-800

Piston Ring / Engine Failure (2GR-FSE Defect)

Occasional · high severity
Typical onset: 80,000-150,000 mi
Symptoms: excessive oil consumption (1 quart per 1,000 mi or worse), blue smoke on startup, loss of compression, knock/rattle from bottom end, complete engine seizure in worst cases
Fix: Failed piston rings score the cylinder walls. Some owners catch it early and re-ring, but most need a complete engine rebuild or replacement. Figure 20-30 hours labor for a rebuild, or 12-18 hours for a used engine swap.
Estimated cost: $4,500-8,000

Transmission Oil Cooler Line Leaks

Common · medium severity
Typical onset: 100,000-140,000 mi
Symptoms: transmission fluid spots under car, burnt smell, low fluid level on dipstick, harsh shifts if fluid gets too low
Fix: The steel lines rust at the fittings or the cooler itself cracks. Replace the lines and cooler if compromised—2-3 hours labor. Flush the transmission if contamination occurred.
Estimated cost: $600-1,200

Transmission Mount Failure

Common · low severity
Typical onset: 80,000-120,000 mi
Symptoms: clunk on acceleration or deceleration, vibration at idle in Drive, excessive drivetrain movement felt through shifter
Fix: Rubber separates from the mount bracket. Replacement is straightforward—1.5-2 hours labor to support the transmission and swap the mount.
Estimated cost: $300-500

Starter Motor Failure

Occasional · high severity
Typical onset: 100,000-150,000 mi
Symptoms: click but no crank, intermittent no-start, grinding noise on startup, eventually total no-start condition
Fix: The starter solenoid contacts wear out or the motor itself fails. Access is tight—starter sits low behind the engine. 2-3 hours labor due to working around exhaust and subframe.
Estimated cost: $500-900

Evaporative Emissions Leaks (Fuel System)

Occasional · low severity
Symptoms: check engine light P0441 or P0456, fuel smell near filler or under rear seat, failed emissions test
Fix: Charcoal canister, vent valves, or hoses crack over time. Smoke test required to pinpoint. Labor varies widely—1-4 hours depending on component location.
Estimated cost: $200-700
Owner tips
  • Check oil consumption religiously—if it's burning more than 1 quart every 3,000 miles, budget for an engine. Compression test before purchase is smart.
  • Walnut blast the intake valves every 60,000-80,000 miles to prevent drivability issues from carbon.
  • Inspect transmission cooler lines and undercarriage for rust annually—these cars see salt and age poorly underneath.
  • Use Top Tier gasoline and quality synthetic oil (0W-20) to minimize carbon formation and ring sticking.
Great chassis and transmission, but the 2GR-FSE engine is a gamble—get a pre-purchase compression test and oil consumption check or you could inherit a $6,000 rebuild.
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.

Labor Times — 2007 Lexus IS 350

468 jobs across 17 categories

body (31)

brakes (39)

cooling (21)

drivetrain (20)

electrical (75)

engine (67)

hvac (23)

interior (24)

maintenance (31)

suspension (42)

transmission (30)

🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years.
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