gwm1471

I need help. I have a 2005 F150 4x4 that is basically perfect except for the brakes...which has been this way since I bought it last year. The brakes are low....and I mean low as almost to the floor. I have put in new pads on all four wheels; new master cylinder and actually bought a power bleeder and bled all four wheels twice. The only thing I haven't messed with is the power brake booster because I can't see it being the problem...my experience is that when they go bad, you have hard brakes not soft as a grape brakes.

Also, there is NO leaking anywhere. I have checked all four calipers...no leaks or wetness of any kind. And the reservoir has not moved a drop. This thing is driving me crazy...

Jim_W

Sounds like we have similar problems. I have a 2005 F-150 2x4 with 162,000 miles that I purchased brand new and its been like that since '05.
And I replaced all four calipers in May and now the petal is kind of soft and mushy as well. Dealer says its exactly as it should be.
I just hope it holds up until next spring when I want to trade it in on a new F150. I can't afford any more expensive brake repairs.

djfllmn

iTrader: (1)

how about the hoses?

gwm1471

Not sure how the hoses can be the problem. Fluid went through everything pretty good with the power bleeder so there aren't any kinks or leaking hoses anywhere.

Jim...thanks for the reply. To be honest, I am kind of use to double pumping every time I want to stop, but I let my buddy use my truck to move a few things and he told me he would never drive my truck again...he didn't think it would stop. That was embarrassing as heck...and he has been in my truck while I have been driving and was perfectly fine. :-)

There has to be something causing it. I mean brake systems are not rocket science...pressurized fluid pushes a piston which pushes a pad against a rotor...that's it. I can't believe the truck came from the factory like this...

djfllmn

iTrader: (1)

the hoses can have an internal issue

gwm1471

Can you explain? I am trying to figure out what exactly would cause the brakes to be low due to the hoses. I can tell you that I have been under this truck more times than a hooker at a navy base and I have never seen a drop of fluid or a kink in the lines.

Maybe if you could explain it to me, I can start to troubleshoot that angle. Thanks!

djfllmn

iTrader: (1)

sometimes the hose gets a internal issue where it starts to seperate/clog up...that can cause a mushy pedal, sticky brakes all that mess

gwm1471

How do I go about testing the lines? I guess I could take them off 1 at a time at the block and caliper and then blow air through them? Would that work? What would I notice that would indicate a problem line?

djfllmn

iTrader: (1)

brake hoses are one of those parts that you just replace if you even suspect an issue with them..they are cheap enough...im talking hoses here not lines

gwm1471

Oh...I see...the hoses attached to the caliper. I can do that...Thanks