you have a block somewhere going back to master which you already know. i have had trouble with rubber lines going to calibers before. lines were broke inside and checking fluid returning

 

yea i went through the hole truck again today i think i have it narrowed down the the abs pump i have been able to put fluid back through everything till it gets to the abs and it stops does anbody know if its designed to flow back through the abs pump or not. thanks guys for the help so far

 

ok so here is the latest update everything has been flushed from the master all the way back to the caplipers replaced both calipers and rubber hose's that go to them still had the same issue, would work till it heated up them the rears would lockup So i pushed the fluid from every wheel back to the master but when i tried to push the rears up it would not go through the abs system, so of mine at a local boneyard let me borrow a new one of a wreched truck put it on yesterday but now the abs light is on but on the plus side it seems like the brake problem has been solved for now. does anyone know why the light mite be on do i need to get the computer reflashed or something. thanks for all your help guys you

 

Not sure on the abs light. Those things can be pretty funky at times. Maybe some one else will know more Good to hear the problem is gone

 

Good question.

 

the abs light could be on because the abs system has not been bleed. when u replace the abs u have to bleed the system with a scaner. it's also the modual, the modual that u installed probley has the wrong tire size in it and it could have the vin installed from the other vehicle. the only problem is that u might have to buy a new modual to get it to work right.. but glad its all fixed but for the light.

 

thanks cummins tech i will look into the mod. i know the truck it came out of was the same thing as mine just more milage, and i did know about the bleeding thing with a scanner do you know if it can be done with the snapon scanner or if it has to be done with one from the dealer. thanks for the info

 

Any time. I have never tryed it with a snap-on scanner. I have always done it with the Dealers scanners but i also have access to them.

 

ok yea i tried it lastnight with the snap-on and it didnt work i have an appointment on saturday for them to look at it i willl let you guys know what they say thanks for all the help everyone

 

No Problem. See if u can talk to the tech and tell him that u swapped out ur modual and that u just need it recalabrated for the latest update and to programe tire size.