The Apex Hunter’s Guide: A DIY Diagnostic Guide to the Scion FR-S (2013–2016)

The Scion FR-S is a pure enthusiast’s car. While the Scion brand was eventually absorbed back into Toyota (relabeling the car as the 86), the FR-S remains the quintessential "86" experience in North America. Born from a partnership between Toyota and Subaru, it features the FA20 Boxer engine.

Because the FR-S only existed for a few years (2013–2016), it represents the early phase of the "ZN6" platform. If you’re wrenching on one in 2026, you need to know the difference between a "first-year" design flaw and standard mechanical aging.

1. Generation Context

• 2013–2014: The early adopters. These models faced the most "teething" issues from the factory.
• 2015–2016: Refined suspension tuning and the introduction of improved interior materials and updated bolt-on components.

2. Common Failures: Design Flaws vs. Aging

Design Flaws (The "Factory Quirks")

• Valve Spring Recall (2013 Models): The most famous FR-S issue. Early 2013 engines had valve springs prone to fracturing, which could lead to total engine failure.
• Cam Plate Oil Leak: The rear of the passenger-side cylinder head has a block-off plate for a vacuum pump (used in other markets). The factory seal is notorious for leaking oil onto the hot exhaust.
• The "Cricket" Noise: High-pressure fuel pumps (HPFP) on these cars are famous for a high-pitched chirping sound. It is generally harmless but annoying.
• Condensation in Taillights: The factory gaskets were poorly designed, allowing water to pool inside the light housings.

Aging Issues (Wear & Tear)

• Front Timing Cover Seepage: The RTV sealant used by the factory begins to "weep" oil after 80,000 miles.
• Throw-out Bearing (TOB) Failure: In manual models, the TOB often begins to squeak or grind after 60,000 miles, eventually leading to clutch failure.
• Torn Shifter Boot/Seal: The rubber insulator at the base of the shifter cracks, letting transmission heat and noise into the cabin.

3. The DIY Diagnostic Checklist

👂 LISTEN (The Ears)

• A High-Pitched "Cricket" Chirp at Idle:
  • Diagnosis: Normal High-Pressure Fuel Pump operation. It usually gets louder with low-quality or ethanol-heavy fuel.
• A "Whirring" or Squealing when the Clutch is Pressed:
  • Diagnosis: Failing Throw-out Bearing. If the noise stops when you release the pedal, the bearing is dry and needs replacement.
• A "Clicking" or Metallic Pop when Turning the Wheel:
  • Diagnosis: Likely a failing Electric Power Steering (EPS) coupler inside the steering column.

👀 SEE (The Eyes)

• Oil on the Passenger-Side Exhaust/Overpipe:
  • Diagnosis: Leaking Cam Plate. Look behind the engine on the passenger side for black, crusty oil residue.
• Foggy or Water-Filled Taillights:
  • Diagnosis: Failed Taillight Gaskets. Check after a car wash or heavy rain.
• Check Engine Light + "Traction Control Off" Light:
  • Diagnosis: Often caused by a Dirty MAF Sensor or a failing VVT Solenoid (Variable Valve Timing).

👃 SMELL (The Nose)

• Burning Oil after a Spirited Drive:
  • Diagnosis: Again, check the Cam Plate or the Timing Cover. Oil is likely dripping onto the hot exhaust manifold.
• A "Sweet" Syrup Smell:
  • Diagnosis: Check the Coolant Expansion Tank. The plastic tanks are known to crack near the mounting points as they age.

✋ TOUCH (The Hands)

• Vibration in the Gear Shifter at High RPM:
  • Diagnosis: Normal for this car's direct-linkage shifter, but if it's excessive, check the Transmission Mount.
• "Notchy" Shifting when Cold:
  • Diagnosis: The Aisin 6-speed manual is picky about fluid. If it feels like it’s "crunching" into 2nd gear, it’s time for a Fluid Flush with high-quality synthetic gear oil.

💻 TOOLS (The Tech)

• OBD-II Scanner: Look for code P0016, P0017, P0018, or P0019.
  • Diagnosis: These are the "Cam/Crank Correlation" codes. In early FR-S models, this often points to a failing VVTi Actuator or Solenoid.
• Multimeter: Test the battery. The FR-S has a relatively small battery; low voltage will cause "phantom" power steering errors.
• Torque Wrench: Check your Lug Nuts and Strut Tower Bolts. The FR-S is a stiff car, and vibrations can loosen suspension hardware over years of track/canyon use.

Summary: The FR-S Owner’s Cheat Sheet

The Golden Rule for FR-S Owners

Check Your Oil Weekly: The FA20 engine has a relatively small oil capacity (approx. 5.4L). Because these cars are often driven "enthusiastically," they can consume oil at high RPMs. Running just 1 quart low during a high-G corner can cause oil starvation and a spun rod bearing.

Keep it topped up, fix that cam plate leak, and your FR-S will remain one of the best-handling machines on the road!

The Apex Hunter’s Guide: A DIY Diagnostic Guide to the Scion FR-S (2013–2016)

The Scion FR-S is a pure enthusiast’s car. While the Scion brand was eventually absorbed back into Toyota (relabeling the car as the 86), the FR-S remains the quintessential "86" experience in North America. Born from a partnership between Toyota and Subaru, it features the FA20 Boxer engine.

Because the FR-S only existed for a few years (2013–2016), it represents the early phase of the "ZN6" platform. If you’re wrenching on one in 2026, you need to know the difference between a "first-year" design flaw and standard mechanical aging.

1. Generation Context

• 2013–2014: The early adopters. These models faced the most "teething" issues from the factory.
• 2015–2016: Refined suspension tuning and the introduction of improved interior materials and updated bolt-on components.

2. Common Failures: Design Flaws vs. Aging

Design Flaws (The "Factory Quirks")

• Valve Spring Recall (2013 Models): The most famous FR-S issue. Early 2013 engines had valve springs prone to fracturing, which could lead to total engine failure.
• Cam Plate Oil Leak: The rear of the passenger-side cylinder head has a block-off plate for a vacuum pump (used in other markets). The factory seal is notorious for leaking oil onto the hot exhaust.
• The "Cricket" Noise: High-pressure fuel pumps (HPFP) on these cars are famous for a high-pitched chirping sound. It is generally harmless but annoying.
• Condensation in Taillights: The factory gaskets were poorly designed, allowing water to pool inside the light housings.

Aging Issues (Wear & Tear)

• Front Timing Cover Seepage: The RTV sealant used by the factory begins to "weep" oil after 80,000 miles.
• Throw-out Bearing (TOB) Failure: In manual models, the TOB often begins to squeak or grind after 60,000 miles, eventually leading to clutch failure.
• Torn Shifter Boot/Seal: The rubber insulator at the base of the shifter cracks, letting transmission heat and noise into the cabin.

3. The DIY Diagnostic Checklist

👂 LISTEN (The Ears)

• A High-Pitched "Cricket" Chirp at Idle:
  • Diagnosis: Normal High-Pressure Fuel Pump operation. It usually gets louder with low-quality or ethanol-heavy fuel.
• A "Whirring" or Squealing when the Clutch is Pressed:
  • Diagnosis: Failing Throw-out Bearing. If the noise stops when you release the pedal, the bearing is dry and needs replacement.
• A "Clicking" or Metallic Pop when Turning the Wheel:
  • Diagnosis: Likely a failing Electric Power Steering (EPS) coupler inside the steering column.

👀 SEE (The Eyes)

• Oil on the Passenger-Side Exhaust/Overpipe:
  • Diagnosis: Leaking Cam Plate. Look behind the engine on the passenger side for black, crusty oil residue.
• Foggy or Water-Filled Taillights:
  • Diagnosis: Failed Taillight Gaskets. Check after a car wash or heavy rain.
• Check Engine Light + "Traction Control Off" Light:
  • Diagnosis: Often caused by a Dirty MAF Sensor or a failing VVT Solenoid (Variable Valve Timing).

👃 SMELL (The Nose)

• Burning Oil after a Spirited Drive:
  • Diagnosis: Again, check the Cam Plate or the Timing Cover. Oil is likely dripping onto the hot exhaust manifold.
• A "Sweet" Syrup Smell:
  • Diagnosis: Check the Coolant Expansion Tank. The plastic tanks are known to crack near the mounting points as they age.

✋ TOUCH (The Hands)

• Vibration in the Gear Shifter at High RPM:
  • Diagnosis: Normal for this car's direct-linkage shifter, but if it's excessive, check the Transmission Mount.
• "Notchy" Shifting when Cold:
  • Diagnosis: The Aisin 6-speed manual is picky about fluid. If it feels like it’s "crunching" into 2nd gear, it’s time for a Fluid Flush with high-quality synthetic gear oil.

💻 TOOLS (The Tech)

• OBD-II Scanner: Look for code P0016, P0017, P0018, or P0019.
  • Diagnosis: These are the "Cam/Crank Correlation" codes. In early FR-S models, this often points to a failing VVTi Actuator or Solenoid.
• Multimeter: Test the battery. The FR-S has a relatively small battery; low voltage will cause "phantom" power steering errors.
• Torque Wrench: Check your Lug Nuts and Strut Tower Bolts. The FR-S is a stiff car, and vibrations can loosen suspension hardware over years of track/canyon use.

Summary: The FR-S Owner’s Cheat Sheet

The Golden Rule for FR-S Owners

Check Your Oil Weekly: The FA20 engine has a relatively small oil capacity (approx. 5.4L). Because these cars are often driven "enthusiastically," they can consume oil at high RPMs. Running just 1 quart low during a high-G corner can cause oil starvation and a spun rod bearing.

Keep it topped up, fix that cam plate leak, and your FR-S will remain one of the best-handling machines on the road!