Braking problems.

[Dodgecrawler2011]

I too am having brake problems. I havemt dug into in much but my pedal is extremely hard to push. And hardly slows the trucl down at all luckily its a 5 speed or id never got it stopped on the way home last night where should I start

[Mark Nixon]

Check the vacuum pressure first.
Hard pedal is usually vacuum related.

Mark.

[Dodgecrawler2011]

There is a vac line hanging not sure where it goes. The bosster is hooked up so is the line fro. The ps pump up and the other goes to some lil doo hickey on the inner fender.

[dunes450r]

if a vac line in not hooked up at all, that could be the problem. not allowing the system to actually receive vaccuum

[Dodgecrawler2011]

Where woukd this other one go. To the motor itslef I asume but where at

[Mark Nixon]

How big is it? There is a small one, about 3/16", for the heater controls.
Any bigger and it could have been for an accessory that's no longer there.
Just plug it off and see if you have better brakes.

Mark.

[Dodgecrawler2011]

Its a 3/8 hose. And heater doesnt work. Blowerotor wont turn on I assumed it was something eletical with that

[Mark Nixon]

Plug the hose and see if your brakes work better?

Mark.

[Dodgecrawler2011]

Yes I will try that in the morning. And I also posted in the electrical section

[BLACKOUT93]

There is a vac line hanging not sure where it goes. The bosster is hooked up so is the line fro. The ps pump up and the other goes to some lil doo hickey on the inner fender.

Yea I had that same problem on mine when someone broke the sombitch off lol

That line goes to what is called a vacuum switch on the inner fender like you were saying.
It took me forever to find the info on that damn switch but basically it sends a signal to either the ABS module or the computer (don't remember which) to allow vacuum to the booster and allow your pedal to work like it should...(again im not sure that's accurate because it had been awhile since I read it).
The switch mechanism was made by EATON and NOBODY makes a replacement for them as I had found out and I had to figure a way out to fix the switch myself. Hope this helps!

To the rest of you gurus out there...my truck is having similar issues with the break pedal being spongey and when I pump it, it would work better but not be cured. I have let my truck sit for awhile since trying to find a dang battery for it ....after I FINALLY found something that will power it I went for a drive last night and the brakes worked MUCH better. Went for a longer drive later and it started having the problem again little by little until it was very obvious.

I had my rear brakes adjusted a little less than a year ago the week I had gotten a new master cylinder and don't think they would need adjusting again so soon. Also no ABS light. everything was working just fine on my truck until I came up here in the dang snow and cold weather FML. Who can help?

[BLACKOUT93]

oh whoops disreguard my last post...apparently I didn't read that well