Subaru 1998 Impreza Owner's Manual page 246

Maintenance and service
perature.
If the radiator cooling fan does not operate even when the engine cool-
ant temperature gauge exceeds the normal operating range, the circuit
of the cooling fan may be defective. Check the fuse and replace it if nec-
essary. If the fuse is not blown, have the cooling system checked by your
SUBARU dealer.
If frequent addition of coolant is necessary, there may be a leak in the
engine cooling system. It is recommended that the cooling system and
connections be checked for leaks, damage, or looseness.
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