By yourself on a wet car (it's raining in Michigan). Is there are dye that will show up with a blacklight?
I'm loosing fluid somewhere and I can't see anything obvious.
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Dec. 15, 2011 6:55 p.m. Grtechguy SuperDork
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Dec. 15, 2011 7:15 p.m. wbjones SuperDork
don't know about any dye .. but I had a similar problem a while back ... turned out to be crush washers that were ... errrrr crushed ...
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Dec. 16, 2011 9:10 a.m. iceracer SuperDork
I was going to say, a damp spot will show up but on a wet car, not so much.
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Dec. 16, 2011 9:14 a.m. emodspitfire Reader
Leaking between the MC and the firewall??
You can lose alot of fluid before you see or smell the fluid. Ask me how I know....
Rog
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Dec. 16, 2011 9:22 a.m. DrBoost SuperDork
Since BOT brake fluid is hygroscopic, I don't think there's anything you can do right now. Dye won't be there for a while since the fluid doesn't circulate in the system. Here's what I'd do. Look at the spots that are still dry (underhood, that's about it) first. Then, spray brake clean on the suspect spots (calipers, backing plates and fittings) and hit the brakes 50 times and re-inspect. How much are you loosing?
What kind of car? -
Dec. 16, 2011 11:19 a.m. 44Dwarf Dork
hose it all down with brake cleaner then wait for it to flash off nice and dry. Then spray with anit fungal foot spray push pedal look for dark spot in the white powedr spray. If its power brakes check the vacuum line for signs of Goo...
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Dec. 16, 2011 12:43 p.m. Grtechguy SuperDork
It's on the Aurora....the crush washer idea is something I should double check...also like the white powder idea
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Dec. 16, 2011 1:40 p.m. 44Dwarf Dork
Cheap tricks you learn at m-cycle shops as a kid. works for all sorts of small leaks (oil, anti-freeze, refrigerant, etc) and washes off clean.
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Dec. 17, 2011 11:02 a.m. Turboeric New Reader
If none of the above pans out, consider that the fluid may be going into your brake booster. If there's a leak in the master cylinder, the vacuum in the booster will pull fluid in. I once had a Triumph GT6 with a mystery fluid leak that I could never find. Then the booster quit working - because it was full of brake fluid and the big piston could no longer move!
