yes the 3 friends are on.

i swapped the brake pads in march and they had gone away.

then they popped back up a few weeks ago and have gone away and come back.

now they will go away. i will drive and pack. get back in the truck and when i turn the key to the on position they pop on before i ever turn the key.

when they are off the hill decent works. when on it of course does not.

im gonna find a place to panic stop on gravel.


if nothing, then i will find a indy shop to code the truck

 

How about squeaking??

 

Ok Sloppy, because I like you and think your cute I have been doing some research for you.
It does sound like it is a shuttle valve problem.
EBD=electronic brake force distribution

 

thanks spike,,,


and mike, no there is no squealing at all. i did a brake job 1000 miles ago and the new ebc's are working great. but this problem has cropped up since then. actually shortly after the brake swap. but maybe it was doing it then and i just had not noticed because of the stock pads squealing like crazy.

i am gonna have the codes pulled and cleared. do what i can to figure it out and move forward.

 

heck for the $65 AB wants for the repair kit i might as well do the shuttle valve even if thats not the issue. would give me something to do of these weekend days =)

 

There may be a piece of gunk inside the shuttle valve and it is clogging the rear brake lines...just a thought.
From reading though it does send equal amounts of braking to all four wheels under normal braking conditions.
And I know what SLABS stands for now.

 

well later on tonight when it cools down or some time this week i have a small project on my hands YAY!!!

 

Cools down? What is it hot there? It is 68 here right now with a low of 54 for tonight, been that way all weekend.
2 weeks ago it was in the upper 90's.

 

That's flat out wrong for any road going vehicle. Basic physics will explain why equal braking power to all 4 brakes on a car will lead to constant rear wheel lockups.

My Porsche has 3 lines coming out of the master cylinder. Does that mean I have 3 channel braking? Of course not. Its proportioned IN the master cylinder, as a function of the DOT-required separate hydraulic systems (so you don't lose ALL of your brakes if you have a damaged hydraulic line or wheel cylinder).

"4-channel-braking" does not refer to service pedal proportioning. It refers to that big expensive box the lines go to before they head out to the wheels. The box that allows for individual ABS per wheel, descent settings on the D2, and stability control on most modern-ish sports cars.

 

You've misinterperted something you read. Think about it: the weight distribution on a D2 is at least 60% front, 40% rear. Slam on your brakes - not a panic stop, just hard. Now it's 80%/20% at best. Do you feel your ABS kicking on or are your back wheels skidding (especially in mud or on wet pavement)? No...of course not.

If the braking forces were equal, you would be pointing backwards in no time. Just like when I though I'd play with the proportioner setting on the track car and got a little to much to the rears.