Express 3/4 Ton Van V8-5.7L VIN R (1998)
Brake Proportioning/Combination Valve: Description and Operation
The combination valve is located at the Electronic Brake Control Module (EBCM). If it becomes apparent that there is a mechanical problem, refer to
Four Wheel Antilock Brake System. If it becomes apparent that there is an electrical failure, refer to Electrical Diagnosis.
