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Flushed brake fluid and found...(with pics.)
I wanted to post these two pics and get some opinions on what this might be. I have literally done 200+ brake flushes at my old job since they tried to upsell a fluid flush to every customer that walked by. I had always seen really dark fluid extracted from master cylinders and brake lines but I never saw anything like this..
About every 6 months I pull my truck in my shop and give it a quick checkup. I use a pneumatic fluid extractor and get a sample of all the fluids. I changed the brake fluid about 2 years ago and switched to the Valvoline full synthetic. The fluid itself looked fairly clean, but at the bottom of the extractor I found these black flakes that had settled to the bottom. I always clean the extractor really well so I can get an accurate idea of what going on but after seeing this I figured it might be best to get some opinions. Any help is much appreciated..
2003 F-250 7.3 Powerstroke, 4'' straight pipe, 6637 Air Intake, DPTuner 60e-80e-120r-140ss, Coolant Bypass
*87 percent of the time statistics are made up on the spot*
Last edited by jordison460; 10-12-2013 at 11:19 PM.