The head gasket has a high failure rate due to cooling system problems. Subaru is aware of the problem and has extended the warranty to 8 years/100k miles on many vehicles.
Resources for the Repair and Maintenance of your 1999 Subaru Impreza Outback
1999 Subaru Impreza Outback
1999 Subaru Impreza Outback Problems
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.
A noise in the clutch called "clutch chatter" is common if the car is driven without allowing it to warm up.
Subaru issued a recall (WWG-90) because the mass air flow sensor has a manufacturing defect.
1999 Subaru Impreza Outback Questions and Answers
99 Impreza with replaced axle and ball joint makes clicking noise by passenger front wheel during right cornering or with steering wheel turned completely to the right.
My son was recently in an auto accident with his Subaru Impreza outback sport. He was getting onto the freeway when his accellerator pedal stuck to the floor and the car going 80 mph was out of co...
Some dealers say water pump does't need change, if good. Ditto with other belts.
vin#jf1-gf4853 wg806053 I'm thanking it is the roll connector/clockspring. hope you can help me, the part from the subaru dealer is 450.00 +tax please help TOM