Diagnostic Technique No. 3

Reservoir Sealing Points—Check

An empty brake master cylinder reservoir condition may be caused by two types of non-pressure external leaks.

Type 1: An external leak may occur at the master cylinder reservoir cap because of improper positioning of the gasket and cap. Reposition cap and gasket.

Type 2: An external leak may occur at the reservoir mounting seals. Service such a leak by installing new seals.