Auto Repair - Roadshow forum

Question

Small brake fluid leak caliper

by 1Chris / May 28, 2017 7:42 PM PDT

I replaced front brakes on 1998 Nissan Altima. As I was pushing the piston back in the caliper, I noticed a very small amount of brake fluid leaking out. Been keeping an eye on the master cylinder; hasn't seemed to drop in a few weeks. Any experience with this?

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All Answers

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Answer
Here's my view.
by R. Proffitt Forum moderator / May 29, 2017 6:10 AM PDT

I no longer fix things that work and don't leak.

This may be the short answer but it's helped me in the long view.

Post was last edited on May 29, 2017 6:10 AM PDT

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Answer
A question or three
by Steven Haninger / May 29, 2017 7:13 AM PDT

This is a 19 year old car. Have the calipers ever been replaced? Secondly, how far did they need to be pushed and how did you do this to where you could see the leak? Was it coming from the piston seal? I generally push these back with the old pad in place so any leak won't be seen until the pad is removed. I'd not use any method that apply pressure at an angle. Any leaking should become visible on the bottom of the inside pad at some time so that's what you'd keep an eye on. You can always go through the hassle of taking it apart again to see if it's wet. But, if you've never bled the system and these calipers have never been replaced, I'd not be surprised if they leaked a bit.

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