FALKOR3theLuckDragon6.0
New member
Alright, I’m at a loss here and could use some input.
I’ve got a 2006 F-250 6.0 Power Stroke, and after replacing just about everything in the brake system except the ABS module, I’m dealing with a weird issue. After a fresh bleed of the hydroboost and master cylinder, everything feels fine at first. But after driving a mile or two, the brakes start applying themselves—not all at once, but enough to be a problem.
Here’s what’s been replaced:
Hydroboost (OEM from Ford)
*Master cylinder (Aftermarket from O’Reilly’s, since OEM is discontinued)
*Brake lines, calipers, and pads
Now, here’s where it gets interesting: if I loosen the two nuts securing the master cylinder to the hydroboost, the issue goes away, and I can drive it back home with no problems. That makes me think the pushrod might be preloading the brakes and possibly needs a spacer.
Has anyone dealt with this before using an aftermarket master cylinder? If so, is there a universal spacer that fixes this, or is there something else I should be looking at? Appreciate any insight before I start throwing more parts at it.
Thanks!
Edit: the problem started with replacing just the mastercylinder. It wasn't until after that I noticed the hydro boost was leaking in the cab and believed that to be the issue. Sadly it wasn't.
I’ve got a 2006 F-250 6.0 Power Stroke, and after replacing just about everything in the brake system except the ABS module, I’m dealing with a weird issue. After a fresh bleed of the hydroboost and master cylinder, everything feels fine at first. But after driving a mile or two, the brakes start applying themselves—not all at once, but enough to be a problem.
Here’s what’s been replaced:
Hydroboost (OEM from Ford)
*Master cylinder (Aftermarket from O’Reilly’s, since OEM is discontinued)
*Brake lines, calipers, and pads
Now, here’s where it gets interesting: if I loosen the two nuts securing the master cylinder to the hydroboost, the issue goes away, and I can drive it back home with no problems. That makes me think the pushrod might be preloading the brakes and possibly needs a spacer.
Has anyone dealt with this before using an aftermarket master cylinder? If so, is there a universal spacer that fixes this, or is there something else I should be looking at? Appreciate any insight before I start throwing more parts at it.
Thanks!
Edit: the problem started with replacing just the mastercylinder. It wasn't until after that I noticed the hydro boost was leaking in the cab and believed that to be the issue. Sadly it wasn't.