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Discussion Starter #1
hi all !! im doing brakes on the 04 tahoe Z71 and want to change fluid as i dont think its ever been changed. is there anything you should do different with abs sys. i never have even bled brakes with abs b4 . and also what do you think about synthetic vs standard brake fluid ? thanks
 

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I don't think I would mix synthetic and std. Much like DOT5 doesn't mix, I have yet to hear much bout the synths.
 

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Discussion Starter #3
ya im going to completely flush system. and put new fluid in. Im just wondering about the abs sys, will it flush out along with the rest or is there a special way to bleed/flush
 

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Flush just like any other system. Trucks with ABS should have there systems flushed every 40,000 miles. If you don't have a power bleeder, what I do is suck out the old fluid with a suction buld ( looks like a turkey baster) and fill with new fluid and start bleeding the system making sure the reserviour doesn't get to low and suck air. Start at the right rear ( furthest from the reserviour) and work forward.
 
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