89obsSB
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We have a pressure bleeder that attaches with an adapter to the master cylinder reservoir and forces fluid through. Works perfect everytimeThat's how I do it, gets it started after replacing main line faster
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We have a pressure bleeder that attaches with an adapter to the master cylinder reservoir and forces fluid through. Works perfect everytimeThat's how I do it, gets it started after replacing main line faster
In my case it was a mc failure. However that switch moves to the side loosing pressure to kill a leak.. it's designed to give you front brakes only or rear brakes, in the event of a catastrophic failure. If your not getting a dash light then I check at the mc first and make sure you have fluid shooting out of the 1/4 line and follow it until you go to the rear.Thanks for the pics..what would cause the rear to be blocked off? Im not getting any warning lights on the dash.
Whenever I took apart my abs unit and removed my mc, it was full of black fluid. It was so black it looked like coca cola or coffee. Keep in mind I just bled the brakes with fresh fluid about a yr to 2 yrs ago. And been keeping an eye on the fluid. Not sure what happened but I think the abs modules stores fluid that doesn't get completely cleaned out.....I blew a rear line and could not get fluid after the line was replaced. Cracked the line at the MC and had no pressure. Replaced the MC and all bled well. I remember from years ago that a major leak can cause MC piston overtravel scoring the piston seal.
Makes sense with what I exoerienced.
Correct. Unless you use a scan tool to chatter the ABS valves, you CANNOT properly bleed the thing. Any air trapped behind closed valves cannot bleed out.Whenever I took apart my abs unit and removed my mc, it was full of black fluid. It was so black it looked like coca cola or coffee. Keep in mind I just bled the brakes with fresh fluid about a yr to 2 yrs ago. And been keeping an eye on the fluid. Not sure what happened but I think the abs modules stores fluid that doesn't get completely cleaned out.....
This makes sense seeing how you need to chatter the ABS unit to fully bleed the system if air has gotten up that far in the lines. Or you've introduced air up there with line breaking.I think the abs modules stores fluid that doesn't get completely cleaned out.....