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Not sure what's causing these brake issues I'm having...

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Arik5405

Arik5405

Platinum Member
I have a 2000 Explorer 5.0 AWD.

When I press down on the brake pedal, it keeps going down a little bit further and vibrates kind of like the anti lock brakes are kicking in. It does this only when coming to a stop (not just pressing on the brake to slow down from say 70 to 50 or something), and it does it whether or not the roads are dry, wet, muddy, icy, etc... I've been told by a couple of people that it could be the master cylinder, do you guys have any other idea of what it could be?
 
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I wish i could help, but i'm sure somebody else will be able to.

For future reference, they're brakes. You dont want things to break
 
MotF Bane said:
ABS could be engaging, I've had a similar problem, though very dissimilar vehicle. Did you get an ABS active light?
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No ABS light...

The vibration doesn't really feel as "intense" as the vibrations when the ABS actually does kick in. I do have to push down the pedal a little harder to get the vehicle to stop though.
 
LTC8K6 said:
Warped rotor(s)?
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I drove a work van for a while with warped rotors and I don't think that's the issue. It's really hard to describe how the pedal feels over the internet obviously, but it doesn't feel like that. The vibration kind of feels like the "pulsing" of the ABS but definitely not as strong as when the ABS is engaged.
 
Get the rotors turned and replace the pads. If that doesn't get it it could be the brake booster or master cylinder.
 
its called low speed ABS activation..usually caused by a mis-reporting sensor due to rust building up under the sensor mounting face. It can also be caused by a cracked tone ring. remove the sensor, clean the mounting face of the spindle and sensor on both front wheels and inspect the tone rings on the axles. The fronts are most likely the cause, we replace alot of these front sensors at the shop.
 
allanon1965 said:
its called low speed ABS activation..usually caused by a mis-reporting sensor due to rust building up under the sensor mounting face. It can also be caused by a cracked tone ring. remove the sensor, clean the mounting face of the spindle and sensor on both front wheels and inspect the tone rings on the axles. The fronts are most likely the cause, we replace alot of these front sensors at the shop.
Click to expand...

Good call...:thumbsup:
Some of those Fords had a sheet metal ring and if its distorted in any way this can happen as well... Recently had a 2000 F150 that the driver said it was doing the exact same thing as you described... Pulled both front wheels and hubs and found the right front had a bent ring... The truck was on job sites all the time so figure something got in there and bent it just enough to cause the problem...? A pair of channel lock pliers and a bit of careful work and it was fixed no more problem... But as allanon1965 said could be a cracked or broken tone ring if its the solid type or a sensor...
 
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