Croatian Z24 wrote:also i had to repair a brake line and i let the hole system drain through the bleeder, now when i bleed the system, do i need to bleed at the master bleeders too?
Jon D wrote:according to my haynes manual "start the engine and let it run for 10 seconds. watch the abs light - it should turn off after 3 seconds or so. Warning: if the light doesn't go off, a GM tech 1 scan tool must be connected to diagnose the problem. have the vehicle towed to a dealer service department or other repair shop equipped with the necessary tool. if the light rutned off like it is supposed to, turn the ignition off and repeat the procedure. if the light goes off again after 3 seconds the brakes can now be bled. " that's a direct quote from my haynes manual i got sitting rite next to me. it then goes on to tell you to bleed the abs module first, starting with the rear most bleeder valve, then the front, then bleed the rest of the brake system regularly.
i had to do this to my car a few months back, i let the master go dry after sittign for a month or so with no rear brakes on at all, and i had to follow that whole crap. everything worked out well, and i wound up not having to bleed the fronts at all, but i did this to my car on factory brakes, bleeding the module is the same as bleeding the rest of the brakes, pump the pedal, hold pressure, open valve yada yada yada. its just one extra step before actually getting to do it.