Hello, I have a 2005 Legacy GT. It started having power loss issues which the dealership was unable to diagnose through several visits (diagnosing as the alternator etc. when those tests were fine). Finally the turbo failed with a whistling noise and loss of power when it would normally boost. Having had issues with vacuum lines I thought this may have been the case and drove it the short distance to the Subaru shop. The technicians have told me now that the turbo failed, and that the entire engine needs to be replaced. I have a few questions:
The technician didn't say that he had inspected the engine, just that it needed to be replaced. How can I be sure that such catastrophic damage had been caused to warrant replacement of the engine. What further work needs to be done to determine the root cause of the turbo failure? I plan on checking banjo filter when I get the opportunity. Could this problem have cascaded to any other systems due to the distance I drove it to the shop after failure (~7 miles)?
The quote for the engine replacement was $7k so I had it dropped off at my house and am contemplating just selling as scrap. If a replacement turbo would solve this though, I would rather just do that.
Thanks
Kyler