One problem related to gas recirculation valve (egr valve) has been reported for the 2004 Subaru Impreza Wrx. The most recently reported issues are listed below.
When I start my car when it is cold out 20 degrees or below my gas line near the fuel rail leaks on the passenger side of the engine until the car warms up. It leaks a little up to enough to pool on the engine. . It worries me because it is on the turbo side of the engine with the exhaust which temperatures can reach up to 1500 degrees. The car could easily catch fire. It is a known problem in Subaru Impreza Wrx models 02-05 and has been brought to Subarus attention multiple times.
| Engine And Engine Cooling problems | |
| Gas Recirculation Valve (egr Valve) problems |