Technician A says installation of aftermarket air shocks may cause height-sensitive proportioning valves to function improperly. Technician B says vehicles equipped with ABS systems using electronic brake proportioning (EBP) do not need proportioning valves. Which technician is correct?

Question

Quizplus · Accepted Answer

Technician A is correct because installing aftermarket air shocks can indeed alter the vehicle's ride height, potentially causing height-sensitive proportioning valves, which are designed to adjust braking pressure between the front and rear wheels based on vehicle load and height, to function improperly. Technician B is correct because vehicles equipped with ABS systems that use electronic brake proportioning (EBP) do not require mechanical proportioning valves, as the EBP system electronically controls the brake force distribution.

Technician a Says Installation of Aftermarket Air Shocks May Cause