Brush Spring
WARNING: This page is about a different car, the 2004 Mazda MPV, 2003 Mazda MPV, and 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
Measure the force of the brush spring using a spring pressure gauge. Read the spring pressure gauge at the brush tip projection of 0.079" (2 mm). See Fig 1. Replace as necessary. See GENERATOR SPECIFICATIONS .