Two problems related to engine have been reported for the 1997 Subaru Legacy. The most recently reported issues are listed below.
I am sure you have received other complaints regarding the 2. 5l engine in 1997 Subaru Legacy gt's. The head gaskets are very weak, which when they blow, can cause a loss of power due to a rush of coolant flowing into the system, which kills the engine. This problem is very widespread, and Subaru does not admit anything. However, in canada, Subaru was sued for this same issue. There are thousands of people out there that are experiencing erratic failure with these head gaskets, and there isn't even a TSB on them. Please, help us!.
Bolt on the idler arm snapped, causing the timing chain to drop, and resulting in a bent engine valve. Dealer and manufacturer have been notified.