2nd Gen Non-Engine/Transmission Low Brake Pedal?

[BigYellowIron]

Well I have been having a problem with my brakes for some time now.



When I'm driving and I first go to hit my brakes the pedal goes almost to the floor before I get brakes. If I let up then push it down again I have a good pedal with good brakes.



If I push the pedal down with the engine off and no vaccuum my pedal is fine and does not go down no manner how hard I push, but when I start the engine the pedal goes almost to the floor when I push on it.



I have 1 ton wheel cylinders that was new about 2 months ago, new calapers, new master cylinder, new shoes, and new pads.



I had the drums turned.



Everything Is new besides the booster, antilock valve and diff pressure valve and the lines.



I just put another master on it last week thinking that I got a bad one from the parts store but no luck.



I hope someone has had this same problem?



Thanks



Adam

 

[Motorhead]

You say you put new shoes on the back... are your self adjusters working? Does adding 1 ton wheel cyls take a different bore size master cyl? Just throwing you some questions... Chris

 

[Speedo]

Low pedal

The first thing I would check would be the rear brake adjustment

and then for air in the system.



Gus

 

[BigYellowIron]

yep I have adjusted them up until they drag a little and it still does it.



I belive the 1 tom master is the same as the 2500 with a 8800 GVW.



Thanks for your thoughts

ADam