Problem with Bleeding brakes on 2002 Venture

Hello guys,

I have problem with bleeding brakes on Venture 2002.
We replaced rear left wheel brake cylinder yesterday and it's started to leak break fluid all over places.
So, this morning we replaced this cylinder and also the rear right wheel cylinder.
Did also bleed and during bleeding didn't feel right at all.
Then we opened the book from Hanes and followed to the letter the bleeding procedure and still don't work.
turn on without starting....
turn engine on 5 times 10 seconds each....
Right rear...
front left....
rear left...
front right....

As soon when I start engine the brake fell down to the floor and I have to pump it up few times to feel right.
I am clueless what else to do.
This guy who replaced the cylinder it's experienced but didn't have a clue what else to do with this situation.

Any idea tips/tricks is more than welcome and it's appreciated.

I leave the engine running fill master cylinder. Pump brake until you get some pedal. Have friend open bleeder should get some air. Hold pedal to the floor until bleeder is closed. Go to next wheel and go through procedure. It may take three or more times on each wheel.
If you have ABS you may need a scan tool to cycle the valves.

Brakes are a safety priority and should be left to the qualified mechanic . As rhandwor mentioned , bleeding a ABS equipped system is complicated and nearly impossible to do without the proper tools and knowledge . My suggestion is to have a certified mechanic check the system and properly bleed the brakes . Just my :2cents:

Eveything is fine unless you let the Master run dry or pull air into the ABS pump.

Maybe its just me, but I've always bled the brakes starting with the one farthest from the master cylinder, and working to the closest.....pass rear, drivers rear, pass front, drivers front.