2000 LX 470 - New accumulator/motor wont pressurize (1 Viewer)

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Joined
Apr 13, 2025
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Location
Indiana, USA
I replaced the accumulator and booster pump with one from City Racer. I got the whole thing put back together and attempted to begin bleeding the brakes. I pumped the pedal 40 times, then turned the key. The pump doesn't run for 30ish seconds like its meant to... it runs for a few seconds at a time and then turns off. This cycle then repeats.

I've repeated the pump pedal 40x and key on several times with the same result. I don't know what I'm missing here. Is there some kind of electronic control that's causing this? Did a miss a bench bleeding step? Or perhaps my master cylinder itself has failed in some way (I only replaced the accumulator/pump because of limited budget) My issue before seemed to be the accumulator (link to my previous thread: 2000 LX470 - ABS motor constantly running, with pulsing brake fluid level - https://forum.ih8mud.com/threads/2000-lx470-abs-motor-constantly-running-with-pulsing-brake-fluid-level.1359453/#post-15904872)

Any help is much appreciated!
 

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