I attempted (and failed) to replace my master cylinder and brake booster. I ended up putting a lot of brake fluid into my new booster before I realized it. (In fact, in an attempt to determine the problem I turned the engine on a few times. I now realize this was an additional mistake.)

So I put the old booster and cylinder back on and began bleeding my brake lines but noticed my brake lights were staying on. I started the engine in hopes it might correct the issue and a tremendous amount of white smoke came out of the exhaust pipe.

I suspect when I started the engine the first time I sucked fluid from the cylinder that was leaking into the engine. I'm not sure what to do now.

2014 jeep Wrangler unlimited Rubicon

  • I could be wrong, but I don't think they're any connection between the brake fluid reservoir and the commission chamber. If that's true, there's no way fluid would have gone there unless you put it on the wrong spot. In any case, please add the year/make/model of the vehicle to your post. – kyle_engineer Sep 3 '19 at 2:48
  • @kyle_engineer, done. – Josh C. Sep 3 '19 at 11:34
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    @JoshC. I don't know. Nobody will give you a guarantee that this won't damage engine, catalyst nor health. In your case I would try somehow to clean of most of it, perform an oil change and hope for the best. – Martin Sep 3 '19 at 13:53
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    @JoshC. honestly, I have no idea and don't feel ready to give you a reasonable answer. The only helpful thought I have is that you should perform an oil change asap, ideally perform additional oil changes afterwards to ensure that all contamination get cleaned away. – Martin Sep 3 '19 at 15:21

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