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How does it take for a brake fluid leak to appear?

Customer Question
How long does it take...
How long does it take for a brake fluid leak to appear?
Submitted: 4 months ago.Category: Lexus
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Answered in 2 minutes by:
10/9/2017
Lexus Mechanic: 3pac2222, ASE Certified Technician replied 4 months ago
3pac2222
3pac2222, ASE Certified Technician
Category: Lexus
Satisfied Customers: 4,377
Experience: ase certified tech
Verified

hi , you should see this right away , but sometimes the fluid can eak internal in the master cylinder and this you cannot see .

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Customer reply replied 4 months ago
I actually replaced my master cylinder last week. One of the nuts connecting to the master cylinder was stripped so I cut the end of the flare off and made another double flare. It leaked until I cranked down on it hard. I disconnected and reconnected it a few times, and check it many times a day. I didnt see anything, but when I went out early in the morning it was a little moist under the nut I changed, but it didnt smell like brake fluid. Could it be something else?
Lexus Mechanic: 3pac2222, ASE Certified Technician replied 4 months ago

it could be just clean it up and check it again in a day

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Customer reply replied 4 months ago
I remember when I first made the flare, the leak wasnt really noticeable until I had the car running with the booster on, pedal to the floor, and taking it on and off a few times and cranking it fixed it.
Lexus Mechanic: 3pac2222, ASE Certified Technician replied 4 months ago

that is normal I have the same problems this is because the booster built up more pressure

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Customer reply replied 4 months ago
I actually wedged a large bar between the seat and pedal many times with the car on and could see no leaks. In your experience can a flare with a problem take days to even show a very minor leak?
Lexus Mechanic: 3pac2222, ASE Certified Technician replied 4 months ago

it normally leak right away

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Lexus Mechanic: 3pac2222, ASE Certified Technician replied 4 months ago

plus your not going

to be pushing down on the pedal as hard as you can when driving so I think your good

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3pac2222
3pac2222, ASE Certified Technician
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