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post #1 of (permalink) Old 4 Weeks Ago Thread Starter
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Chevy Malibu soft brake pedal

Hi. So I'm having a problem with the brakes on a 97 Malibu. Tbh, I hate this car with a passion. Thats why I'd like to get it running right before the snow comes. I'd rather not drive the Impala while there is 6 inches of salt on the roads. I just welded in new rockers last month.

Anyway, I've tried bleeding the brakes on this car for the last 4 evenings and I cant get to firm up. First, I had to replace the rear driver side wheel cylinder. Bleed, and drove car for the first time since purchasing two years ago (been sitting, needed an engine). Now, everything was great until I noticed the front passenger wheel was smoking. Stuck caliper. I replaced that, but while doing that the f-ing master cylinder went dry.

So, here's the deal, brake pedal is VERY spongy. If you press (and hold) the brake pedal ONCE, the FR wheel locks, but all the others turn free. If you pump the brakes about 10 times and hold, 3 wheels will lock solid and the RR wheel is almost locked, but with enough effort it'll turn. Pedal does not sink after holding for 5 minutes. I would think if there was a leak anywhere it would eventually sink? With both manually bleeding and a vacuum pump, I've put about 10 qts of brake fluid through it.

Something else I noticed, too was that on the FL caliper, when I opened the bleed screw, it sucked fluid and air IN, instead out. This happens when you push the pedal down, not when the pedal is released. Any ideas as to what is going on?
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post #2 of (permalink) Old 4 Weeks Ago Thread Starter
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Update: Well, I'm an idiot. I bought the wrong caliper. Bleeder screw is on the bottom. Flipped caliper to bleed, pedal is firm now. RR brake must have just a little air left in it though as its not locking completely like the rest. Of course I already ordered a new master cylinder this morning... 😂 Hopefully I've got it right this time.
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