15 votes

Topic deleted by author

8 comments

  1. [5]
    BeardyHat
    Link
    Hey, I'm a hobbyist mechanic, but the brake system is separate from the engine system. I'm not sure why you saw white smoke in the exhaust, but are you sure it maybe didn't come out of the bottom...

    Hey, I'm a hobbyist mechanic, but the brake system is separate from the engine system. I'm not sure why you saw white smoke in the exhaust, but are you sure it maybe didn't come out of the bottom of the car instead? If your brake fluid is leaking, it may have leaked onto the exhaust manifold, which then would have gotten burned up once the car was running and hot and thus you'd see the white smoke.

    Do you happen to have a source for people mentioning the brake fluid getting into the oil pan? Most of the vehicles I work on are 10-20 years old, so unless this is some new methodology for building an engine and brake system, I'm not sure how that would happen.

    6 votes
    1. sneakyRedPanda
      Link Parent
      I’m not an expert either but I’m familiar with brake boosters being hooked up to the intake manifold to keep vacuum on the booster, usually with a check valve so it stays under vacuum if the...

      I’m not an expert either but I’m familiar with brake boosters being hooked up to the intake manifold to keep vacuum on the booster, usually with a check valve so it stays under vacuum if the engine dies. I don’t know how the internals of the booster work but if the seal between the master cylinder, and the booster has failed, then I could see it being possible for brake fluid to end up somewhere on the intake side of the engine.

      In general it does seem unlikely that this happened.

      4 votes
    2. Fortner
      Link Parent
      The brake booster is connected to the intake manifold. You can pull the fuse on the fuel pump, disconnect the vacuum hose from the brake booster and run the engine by blowing carb cleaner in the...

      The brake booster is connected to the intake manifold. You can pull the fuse on the fuel pump, disconnect the vacuum hose from the brake booster and run the engine by blowing carb cleaner in the hose. I'm not sure about the actual issue with this vehicle, but if brake fluid gets into the booster, then it theoretically could get into the engine.

      2 votes
    3. [2]
      Jambo
      Link Parent
      As far as it getting into the oil, i think it was more of people accidentally putting brake fluid in the wrong inlet than it leaking by other means. From what I know, and I could be totally wrong,...

      As far as it getting into the oil, i think it was more of people accidentally putting brake fluid in the wrong inlet than it leaking by other means.

      From what I know, and I could be totally wrong, the brake booster is vacuum operated and is connected to the intake. I have seen people suck in seafoam engine cleaner by way of a vacuum hose to clean out their engines while they ran, producing huge smoke clouds (and probably nearly hydro locking their engines lol)

      It definitely came from the tailpipe though, it wasn't burnoff from it dripping on anything hot cause it was immediately after he turned the car on and went away as soon as he turned it off.

      In any case a friend of mine is telling me that I'm overreacting and I shouldn't be too worried but it's just in my nature.

      1. BeardyHat
        Link Parent
        Ah ok, yeah, that makes sense. Yeah, hopefully only a little bit in that case. But I hear you on the worrying, get anxious and worry about everything.

        Ah ok, yeah, that makes sense. Yeah, hopefully only a little bit in that case. But I hear you on the worrying, get anxious and worry about everything.

  2. [3]
    reshape
    Link
    Hobby wannabe mechanic here: It's unlikely for brake fluid to get into the engine from the brake booster, so I believe you'll be fine. It's more likely that those 2.5 quarts of fluid leaked out of...

    Hobby wannabe mechanic here:
    It's unlikely for brake fluid to get into the engine from the brake booster, so I believe you'll be fine.
    It's more likely that those 2.5 quarts of fluid leaked out of the booster than into the vacuum hose and engine itself.

    1 vote
    1. [2]
      Jambo
      Link Parent
      The thing is I put cardboard down and there was nothing dripping when I put the second quart in there and it's bone dry now, I don't know where it's hiding if it is just leaking out somewhere. The...

      The thing is I put cardboard down and there was nothing dripping when I put the second quart in there and it's bone dry now, I don't know where it's hiding if it is just leaking out somewhere. The truck doesn't normally smoke, and it was a LOT of smoke, this is all I can get from my doorbell cam which is pretty low quality but you can see the plume, it was a lot.

      https://media.discordapp.net/attachments/336357353676996609/1136043446906404965/image.png

      1. 3rdcupcoffee
        Link Parent
        The other comments about how the intake vacuum pressure powers the brake booster are correct. Brake fluid in the intake isn’t great but i hardly think it’s a death sentence for your car. It’s...

        The other comments about how the intake vacuum pressure powers the brake booster are correct. Brake fluid in the intake isn’t great but i hardly think it’s a death sentence for your car. It’s pretty much just specialized hydraulic fluid. Corrosive, hydrophilic, hydraulic fluid.

        You’ve gotten good advice already about getting it looked at, but just in the future, if you’re ever having to add more than a quart of fluid without having drained something first (other than washer fluid or fuel, obviously); something is seriously wrong, you should probably just stop and assess before going further.