Hi I have a 2002 Chevy Avalanche 1500 and I am completely stumped with this. I have changed the brake pads the master cylinder the brake booster and I still don't have brakes they are not working and anyway shape or form. I've tried bleeding them several times and I'm just completely baffled on why they're not working any ideal suggestions or thoughts only a subject would be really helpful I need my truck back. Thank you all in advance.

 

Might need to reset the brake proportioning valve.

 

Welcome from Florida. Did you bench bleed the master cylinder before installation?

 

So I have the exact thing happening replaced pads ,rotors, hoses, abs ,modal, booster , and Master cylinder . I have bled many times as well as abs bleed , with Snap On scanner . So my question is have you figured it out , cause I'm at a loss . Thanks In Advance For Any ........Help !!!

 

So I swapped the truck to Hydro boost out of an Escalade , AND.........YES!!!!! it has brakes . Everything else is a BIG waste of time next for more Maybe the 14 inch front rotors and calipers off a 07 -11 Tahoe Burban etc .
All the stuff bolts up minimal mods .

 

I had the same problem. Check your soft brake lines and then your EBCM. It's under your truck below driver's seat. Good luck