What are the most common Subaru WRX problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2008 Subaru WRX has 9 documented issues. The most frequently reported are: EJ255 Turbocharger Oil Starvation from Clogged Banjo-Bolt Filter Screen Causing Turbo Failure and AVCS Timing Codes, EJ255 Oil Pickup Tube Brazed-Joint Cracking Leading to Oil Starvation and Spun Rod Bearings, Brake Line Corrosion at Four-Way Joint from Salt-Water Intrusion Causing Fluid Leak and Long Pedal (Recall 14V-311). Of these, 4 are rated critical and should be addressed promptly.
Is the Subaru WRX reliable?
The 2008 Subaru WRX has 9 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 4 issues are rated critical: EJ255 Turbocharger Oil Starvation from Clogged Banjo-Bolt Filter Screen Causing Turbo Failure and AVCS Timing Codes and EJ255 Oil Pickup Tube Brazed-Joint Cracking Leading to Oil Starvation and Spun Rod Bearings and Brake Line Corrosion at Four-Way Joint from Salt-Water Intrusion Causing Fluid Leak and Long Pedal (Recall 14V-311) and Takata Airbag Inflator Rupture Risk on 2003-2014 Impreza WRX (Multiple Recall Campaigns). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Subaru WRX problems?
Repair costs for known Subaru WRX issues range from $0 to $8,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, EJ255 Turbocharger Oil Starvation from Clogged Banjo-Bolt Filter Screen Causing Turbo Failure and AVCS Timing Codes, typically costs $150-$2,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2006-2014 Subaru WRX EJ255 Turbocharger Oil Starvation from Clogged Banjo-Bolt Filter Screen Causing Turbo Failure and AVCS Timing Codes?
On the EJ255-powered WRX (2006-2014), the turbocharger oil-supply banjo (union) bolt and the AVCS oil-supply banjo bolts contain small mesh filter screens. Over time the screens load up with sludge and debris, restricting oil flow to the turbo center section (and to the AVCS cam-… Repairs typically run $150-$2,500. Severity: high.
What is the 2008-2014 Subaru WRX EJ255 Oil Pickup Tube Brazed-Joint Cracking Leading to Oil Starvation and Spun Rod Bearings?
The factory oil pump pickup tube on 2008-2014 EJ255 WRX engines is a thin steel tube with a brazed joint that can crack with heat cycling and vibration. A cracked pickup sucks air instead of oil, dropping oil pressure under load and cornering, which starves the rod bearings. Owne… Repairs typically run $300-$8,000. Severity: high.
What is the 2008-2014 Subaru WRX Brake Line Corrosion at Four-Way Joint from Salt-Water Intrusion Causing Fluid Leak and Long Pedal (Recall 14V-311)?
On 2008-2014 Impreza WRX (and 2008-2011 Impreza, 2009-2013 Forester) operated in salt-belt states, salty water can splash through a gap in the fuel tank protector onto the brake-line four-way joint connector, corroding the lines until brake fluid leaks. Owners notice a sinking pe… Repairs typically run $0-$600. Severity: high.
What is the 2003-2014 Subaru WRX Takata Airbag Inflator Rupture Risk on 2003-2014 Impreza WRX (Multiple Recall Campaigns)?
Impreza WRX models from roughly 2003 through 2014 were built with Takata phase-stabilized ammonium nitrate airbag inflators (driver and/or passenger side, depending on year and expansion phase). After years of humidity and temperature cycling the propellant degrades and the infla… Repairs typically run $0-$0. Severity: high.
What is the 2002-2014 Subaru WRX Power Steering Pump and Suction Hose Air Leak Causing Whine, Foamy Fluid, and Heavy Steering?
A common WRX complaint is a groaning or whining power steering system, especially when cold, often traced to the pump inlet O-ring or suction hose allowing air into the system. Aerated fluid becomes foamy in the reservoir and steering assist can feel inconsistent or heavy at low… Repairs typically run $50-$700. Severity: medium.
What is the 2008-2021 Subaru WRX Manual Transmission 2nd/3rd Gear Synchro Grind and Notchy Cold Shifting?
Owners of the WRX 5-speed (2008-2014 GR/GV) and 6-speed manual (2015+ VA WRX and the STI 6MT) gearboxes widely report grinding or 'crunching' when shifting into 2nd or 3rd gear, worst on higher-RPM/aggressive shifts and when the transmission is cold. The root cause is premature w… Repairs typically run $200-$3,500. Severity: medium.
What is the 2006-2014 Subaru WRX Secondary Air Injection Pump and Switching Valve Failure Triggering CEL and Limp Mode?
Turbo EJ255/EJ257 WRX models equipped with the secondary air injection system commonly develop failures of the air pump, pressure sensor, or the air switching valves. Moisture intrusion and corrosion can cause the valves to stick or the pump to seize, which sets emissions faults… Repairs typically run $700-$2,200. Severity: medium.
What is the 2002-2014 Subaru WRX Radiator End Tank Cracking and Coolant Leaks on Plastic-Aluminum OEM Radiators?
Many 2002-2014 WRX owners report coolant leaks from the crimped plastic end tanks of the factory radiator, especially as the car ages and sees repeated heat cycles. Cracks often form near the upper tank seam or hose neck, leading to a sweet coolant smell, low coolant level, and e… Repairs typically run $250-$900. Severity: medium.
What is the 2008-2021 Subaru WRX Tumble Generator Valve (TGV) Shaft Seizure or Actuator Failure Setting P2004-P2007 and Forcing Limp Mode?
Turbo WRX intake manifolds carry tumble generator valves — butterfly plates in each runner driven by a small electric actuator with a position sensor. The original valve shaft material corrodes from EGR/condensation and binds, or the actuator motor/sensor fails, and the ECU logs… Repairs typically run $350-$1,200. Severity: medium.
