# Weak Brakes -- Need Some Help **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [December 16, 2019, 5:20am UTC](https://community.cartalk.com/t/weak-brakes-need-some-help/154775 "2019-12-16T05:20:27Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Mikeseverance123\_160970](https://avatars.discourse-cdn.com/v4/letter/m/f9ae1b/32.png) [@Mikeseverance123\_160970](https://community.cartalk.com/u/Mikeseverance123_160970)\ **Post date:** [December 16, 2019, 5:20am UTC](https://community.cartalk.com/t/weak-brakes-need-some-help/154775/1 "2019-12-16T05:20:27Z")
Well, I just replaced the rear wheel bearings on my 2002 Pontiac Bonneville and to get the calipers off, I had to take the brake line connected to the calipers off. All the brake fluid drained out. I replaced it with Napa brand dot3. Now my brakes are weaker. Spongy. Not stopping as fast as they should. I tightened everything back up before I put new brake fluid in. What can I do to fix this? I need my car and don’t need to rear end someone on the freeway. Any assistance would be appreciated. ---
**Author:** ![Barkydog](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/barkydog/32/2470_2.png) [@Barkydog](https://community.cartalk.com/u/Barkydog)\ **Post date:** [December 16, 2019, 5:24am UTC](https://community.cartalk.com/t/weak-brakes-need-some-help/154775/2 "2019-12-16T05:24:30Z")
My best guess is there is air in the bake lines, a good bleeding may solve the issue, many cars are different but a web search should provide some info. ---
**Author:** ![Juarez-MA\_160748](https://avatars.discourse-cdn.com/v4/letter/j/6f9a4e/32.png) [@Juarez-MA\_160748](https://community.cartalk.com/u/Juarez-MA_160748)\ **Post date:** [December 16, 2019, 5:40am UTC](https://community.cartalk.com/t/weak-brakes-need-some-help/154775/3 "2019-12-16T05:40:03Z")
I concur with @Barkydog. Bleed the brakes.