Two problems related to engine head gasket failure have been reported for the 1998 Subaru Forester. The most recently reported issues are listed below.
(1) noticed periodic overheating on 1998 Forester with 2. 5l dohc engine. (2) head gasket failed temperature spiked and coolant boiled over, large amount of white steam from hood. (3) dealer said problem was head gasket and the engine was repaired for $1800, Subaru of America was notified and denied any problems with this year engine in spite of a large number of similiar head gasket.
Engine head gaskets failed. Heads were saved, but engine had to have top-half rebuilt.