NHTSA Complaint #10706271 — 2012 FORD F-150 SERVICE BRAKES

Complaint Details

ODI Number	10706271
Vehicle	2012 FORD F-150
Component	SERVICE BRAKES
Date of Incident	April 1, 2015
Date Filed	April 17, 2015
Mileage	69,650 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MD

Consumer Description

DURING FIRST STARTUP OF THE DAY, THE ELECTRIC VACUUM PUMP MAKES A TERRIBLE NOISE FOR APPROX. 10 SECONDS AS IT BUILDS UP ASSIST VACUUM PRESSURE. THE BRAKE PEDAL BECOMES HARD AS A STONE WITH NO VACUUM ASSIST. THIS IS DUE TO A FAULTY DESIGN WITH THE PUMP ASSY. IT BECOMES CORRODED INTERNALLY AND EXTERNALLY, AND THE PISTON INSIDE THE CHEAP HOUSING BECOMES CORRODED AND THE PUMP WILL EVENTUALLY SEIZE. THIS IS DEFINITELY A DANGEROUS ISSUE. IF THE PUMP SEIZES, THERE IS NOT ENOUGH VACUUM ASSIST COMING FROM THE ENGINE TO PROVIDE ENOUGH VACUUM PRESSURE TO THE BRAKE BOOST SYSTEM AND THE PEDAL BECOMES HARD AS A ROCK TO PRESS. THIS HAPPENS EVERY DAY DURING FIRST STARTUP IN THE MORNING, AND START UP IN THE AFTERNOON WHEN THE VEHICLE SITS FOR A LONG PERIOD OF TIME AND VACUUM PRESSURE DEPLETES. *TR

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