BRAKE PEDAL LOCKED UP ON ME ONE TIME ABOUT 2 WKS...

2004 GMC Yukon

Tiny

ginamg36

November, 26, 2012 AT 12:54 AM

Brake pedal locked up on me one time about 2 wks ago. Sometimes I will sit at light, brake pedal goes all way down while sitting at light. All ready bleed brakes. Foul smeel also

FOUND 625 RELATED QUESTIONS

Brake Fluid Bleeding

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Brake Bleed Issues

3 ANSWERS
4 IMAGES

1 Answer

Tiny

CJ MEDEVAC

November, 26, 2012 AT 1:07 AM

CHECK YOUR MASTER CYLINDER FLUID LEVEL---IF IT'S LOW LOOK FOR A LEAK

THE PEDAL COULD BE DROPPING FOR A COUPLE OR MORE OF REASONS

ONE BEING FLUID IS SQUIRTING OUT FROM SOMEWHERE IN THE SYSTEM

YET ANOTHER IS NOT BLEEDING THE SYSTEM CORRECTLY---LET ME KNOW IF YOU WANT MORE INFO

ANOTHER IS THE MASTER CYLINDER'S (BASICALLY A PISTON, PUSHING FLUID) SEALS ON THE PISTON INSIDE ARE ALLOWING FLUID TO BYPASS THEM----(SOMETIMES CALLED AN "INTERNAL LEAK.W/ NO FLUID LOSS). REPLACEMENT IS THE BETTER OPTION THAN ATTEMPTING TO REBUILD IT

SHOULD IT COME DOWN TO A DIY FIX AND YOU NEED TO PURCHASE ONE---LET ME KNOW--I CAN EXPLAIN HOW TO SAVE A BUNDLE

THE MEDIC

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