My brakes release when applied hard

Asked by May 27, 2014 at 01:20 AM about the 1995 Toyota 4Runner 4 Dr Limited 4WD SUV

Question type: Maintenance & Repair

If I hit a little bumpy area or apply them hard they release and makes kind of a grinding
noise, acts like brakes are all metal and not grabbing, and the brakes are all new all
around

2 Answers

299,355

Have them looked at by the mechanic who installed the new brakes.. Might be time to bleed the air out of the system since the calipers seems to be not operating properly.

3,545

When this happens, does the brake pedal go down farther or feel like it pushes up, or do you feel the brake pedal "vibrate" or"pulsate"? .................................................................................................................................................... If so, you are describing the ABS anti-lock braking system perfectly which means you are stopping so hard that the car is skidding!!!!!!! The grinding noise is the abs pump and valves working incredible fast. Also, make sure all your tires are a matching set and all worn the same and are all properly inflated. If one tire is worn more than another, or a different brand or size, the abs may activate early.

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