Recent content by cofferson

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    Help with brakes before I pull my hair out

    Thanks, it's not the technique that's the problem. It was the abs block with corroded valves from sitting. Verified the brakes stick only after the RR inlet valve activates with a scan tool. Then deactivated ABS with both fuses and it doesn't drag on a test drive. My theory is the stuck and...
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    Help with brakes before I pull my hair out

    I have some needle nose vice grips. I might have to try this. Thank you
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    Help with brakes before I pull my hair out

    I know. I'm even nervous about the line wrenches. I feel like even the best of the best snap on ones can't handle too much torque before rounding
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    Help with brakes before I pull my hair out

    While we're here. Anyone got a trick for these rusty flare nuts? Idk why GM decided the ABS module should be here this close to the floor. I feel like a flare nut will just skip and strip it.
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    Help with brakes before I pull my hair out

    Well I couldn't get any more air so I went for a drive and the brakes were fine BUT my initial problem of the brakes staying engaged after hard was still present. To be fair almost everything needed replaced anyway because the car sat with my father in law for 2-3 years with brake fluid that was...
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    Help with brakes before I pull my hair out

    Of course. What I mean is I prefer to use a kit with hoses so I can be sure no more air is circulating. I prefer this over the "plug ports and pump until air stops rising into reservoir" method since it never works for me. BUT, when I am done, I remove the hoses and install the provided plugs...
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    Help with brakes before I pull my hair out

    Yes, I am using a scan tool to do the autobleed sequence.
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    Help with brakes before I pull my hair out

    Basically the same as you but Orion bleeder. just your typically pump up pressure bleeder. I'd think it was impossible too but here we are.
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    Help with brakes before I pull my hair out

    What I meant was that I was pressure bleeding getting no air through so I went back to a revised manual bleed to get some air through finally.
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    Help with brakes before I pull my hair out

    Just a quick update: Over the weekend I received a replacement master cylinder and an ABS valve block. ABS valve block is put to the side but on hand in case I need it, can be returned for full refund. I bench bled the master cylinder perfectly until no compression (realistically just a teeny...
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    New hydroboost to master cylinder question

    It's all good. I used the rod from the original booster in the new one once I got them apart. Doesn't really matter because I have another thread open where the brakes are unbleedable after replacing the master for some reason. Got another ACDelco master cylinder bench bled and on the truck...
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    New hydroboost to master cylinder question

    And there's no adjustment so I'd have to remove the pushrod and trim.. maybe with this amount of preload they designed it to not cover the bypass port. Just seems odd since it's like 1.4mm preload. You have a gmt900 with hydroboost? If you ever get the time I'd love to know if you remove the 2...
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    New hydroboost to master cylinder question

    Hey everyone. Just wanted to report back that I finally used an air hammer to separate the original booster from the original master cylinder and they also have the same preload. Anyone here has experience with the hydroboost? I've only ever worked on vacuum boosters and this is a big no no but...
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    Help with brakes before I pull my hair out

    Haha I was the one with the gap. Unfortunately it is the right parts so idk why they didn't fit together neatly. It was ACDelco 18M2564 for the master cylinder and the booster is Bosch 0204777579. I ended up pulling out the rod on the booster and removing material until it was just .030 gapped...
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    Help with brakes before I pull my hair out

    Thanks. I used a pressure bleeder as well to no avail.
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