Changed the brakes on my gf's car this weekend. Pads and rotors. Driver side was a piece of cake, but something went wrong on the passenger side.

Fluid started pissing out of the brake fluid canister when I pushed in the piston.

Other than a complete bleed, is there anything else I should worry about? When we press on the brake pedal I can ear air going in/ coming out of somewhere around the lines. I poured some soapy water to narrow it down to a specific location, but couldn't see anywhwere that bubbled.

 

Now when you say canister, do you mean the main receptical up by the manifold, its master cylindar?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97Ej6mike &raquo;</TD></TR><TR><TD CLASS="quote">Now when you say canister, do you mean the main receptical up by the manifold, its master cylindar?</TD></TR></TABLE>

Yes. Fluid was coming out of the lid on the reservoir. Her brakes were fine until I worked on it (other than worn pads and rotors.).

My only explanation would be a gigantic air bubble in the lines, and pushing the piston pushed the air bubble towards the master cylinder.

 

So you mean to say that it is leaking out from the cylindar, and this is even when the cap is closed? If so then that entire Cylindar must be replaced. Its not totally uncommon for that to happen, they just wear out over time.

 

Well... fluid leaked out once. It leaked out when I pushed the piston back into the caliper. Now fluid isn't coming out anymore, but I can ear some sort of "air sound" when we press the brakes.

I test drove the car, it brakes but not the way it should with new pads and rotors. It gradually stops with the pedal through the floor, most likely since the system isn't air tight or something is blocking it.

I bleed a small portion of her fluid, hoping I could get the air bubble out. I got a big one out, and the fluid came out dirty as hell.

Oh... and if I take the lid off the reservoir and get her to push the brakes, I can see air bubbles in the reservoir. As if you were pushing air through a straw in a glass of water.

 

As the brake pads wear down the level of the fluid drops in the M/C. Most people that check the levels under the hood would catch this and top off the level. Now when you push the caliper back in it forces the fluid back into the M/C. Since the M/C was full to begin with. The extra fluid has no where to go it is forced out of the cap. You have 2 choices here 1 is to open a brake bleeder and bleed the system until the level is where it should be. 2 open the top of the M/C and with a CLEAN paper towel soak up the extra fluid until it is at the right level. The fact that you seem to have little knowledge of break systems due the 2nd

Edit: you added another post before i posted this. You need to do a full system bleed. start at the RR, LF, LR, RF. open the right rear bleeder let it drip until the fluid is clear. Close the bleeder and bleed as normal. Then do the same for each corner of the car. Make sure to top off the M/C so it doesn't run dry. good luck

 

Never bleed a system with drums in the back... Are there bleed screws on drums?

 

Yes check the back of the drum assy where the brake line goes in