Riviera V6-231 3.8L VIN L SFI (1991)
Brake Fluid Pump: Description and Operation
The pump motor located in the modulator circulates brake fluid back to the master cylinder circuit during anti-locking braking.
Buick Workshop Service and Repair Manuals
Brake Fluid Pump Relay >
< ABS Main Relay|Description and Operation|Page 3986
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