1998 Subaru Legacy Outback Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1998 Subaru Legacy Outback
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1998 Subaru Legacy Outback ProblemsMass air flow sensor recall
Subaru issued a recall (WWG-90) because the mass air flow sensor has a manufacturing defect.
Front engine oil leaks can develop from the camshaft seal and the crankshaft front seal. If one or more seals require replacement, it may be wise to consider replacing the timing belt as well. These seals are commonly inspected and replaced as needed as part of a timing belt service.
The leak may develop from the oil pump seal. Our technicians prefer to use thread locker when replacing the seal to prevent the bolts from becoming loose again.