Alzito

2011 F-150 V8 5.0 XLT crew cab. 173.000 Miles.

Afater a couple of minutes driving, my truck "drag" the front brakes. The rotors are brand new from Brembo, the pads are brand new ceramic pads, new flex roses, new Motorcraft calipers (both sides), new Motorcraft Master cylinders.
I'm kind of desperate, at the very begin I thought the new MC was bad, so I replace it again, no changes. The rotors start to show the signs of the locked brakes, and they are not even 1K miles. Any clue? Please!!!

Daveleeander

Did you bleed them real good when the brakes were changed? My front drivers side also drug, and wore out two sets of inner pads. I bled them when I put on a set of power stop rotors and pads, and that one had some air in it. I don't think it is dragging now, although it is hard to tell. Before when it was dragging, that rotor was smokin hot, it is not now. Could be the power stop rotor, could be the brake now dragging any more.
Put a suction bleeder on it and pump out a bottle of fluid. See if there is air back up in the line a ways.

D

Alzito

Thanks a lot for your response.
Yes I did bleed. I actually expend almost 3 big bottles of synthetic fluid to make sure all the old fluid was well drained. It's interesting if I take the truck to neutral and let it goes until it stops by itself, I can feel like the brake is actuating some times without i press the pedal. I don't really know if it breaks or loose the brake, but you feel the sound and the "clunk".

Alzito

I will exchange the caliper bracket as well. It's cheap if I compare with I already expend on it. I let you know if it works.
I was expecting more people with some solution.

TJPlatinumEB

Are you sure you have the pads on properly? Inside pad with the ears on the inside and the ones without on the outside? If not, they put the caliper at an angle just enough that it can drag the brakes a bit.

73fxe

You said you are using synthetic brake fluid. If it is DOT 5 don't shake the bottle, that will introduce air bubbles into the DOT 5 . They work out of the fluid very slowly. It might take a day or two to clear them out.

Alzito

Thanks for the help
Yes i did install it right, the ears don't let to install the pads on the outside.
I'm using Lucas synthetic DOT3, and any way I do not shake the bottles.

TJPlatinumEB

The ears will let you install them on the outside, hence my question. There are countless threads here with people with similar issues to yours who install the pads wrong or paid to have the work done and had it done wrong. They can be installed wrong and the caliper will go back on.

Alzito

I'm pretty sure they are on the correct position, BUT, I'll check it right now.
Let you know. Thanks.

GTXKen

Did you ever figure this out? Mines dragging as well and I changed the rotor and pands and now I changed calipers and the hose.