brakes on 1997 Chevrolet Venture

1997 venture i lost my brakes on the back of the van i put master-cly and still did not work new booster
and now new abs and i still do not get no brake flu out of the back i geting a lot from the ft but not the back i do not no where to go now help pz thank you

Asked by for the 1997 Chevrolet Venture
You will need to be able to access the ABS computer and clear out any error codes or the fluid flow will be blocked. Even when you just bleed brakes on a GM vehicle you often have to clear the ABS unit, and more than once in some cases. This takes an ABS proficient scanner, you can't clear anything by disconnecting the battery, unfortunately.