Front driver side brake caliper leaking

2011 CHEVROLET AVALANCHE
124,546 MILES • 5.3L • 5 CYL • 2WD • AUTOMATIC
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ROYCAR71
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  • 359 POSTS
Passenger side caliper is leaky around thread area with both new and old bleeder screw. Currently I put teflon tape around threads and that seems to work. I am keeping eye on it. Is there something else that can be done?
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May 31, 2021 at 9:49 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good evening,

It sounds like the seat is bad on the new caliper. I would return the caliper and get a new one.

https://www.2carpros.com/articles/brake-caliper-replacement

The tape will not last as the brake fluid will break it down and it will leak again.

https://www.2carpros.com/articles/how-to-bleed-or-flush-a-car-brake-system

I attached the procedure below for the repair.

Roy
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May 31, 2021 at 10:32 AM
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ROYCAR71
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Actually I meant bleeder screw was new. Is safe to drive for now. Last I checked area around brake bleeder was dry.
May 31, 2021 at 4:41 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
I would not trust it at all. As I stated, there is something wrong with the seat of the caliper for it to leak.

The tape is temporary. The fluid will break down the tape and it will leak again.

Replace the caliper.

Roy
May 31, 2021 at 7:07 PM
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