[valiant67]

Have they checked the ABS? A faulty sensor or tone ring teeth that are missing on that wheel can cause the ABS to apply brakes on that wheel.

Moving from this forum to the proper forum.

 

[valiant67]

You are thinking of the Bendix 10 system which replaced the Bosch system in mid-year 1990. The common failure is a lack of pressure, not wheel lockup. This could be a simple repair that may be worth making on the Bosch system.