TheFloppyWeasel Posted October 11, 2017 Report Share Posted October 11, 2017 (edited) As I pressed the brakes to turn into a turning lane, the car made an odd noise (I thought maybe I ran over something but didnt see anything in my mirror) and the brakes went mushy briefly, then went back to normal. It still slowed down, but the pedal was all the way down. I did notice the traction control light blink briefly but didnt stay on (maybe because the pedal was fully engaged and the car was still moving?). Reluctantly I had to drive the 1/4 mi from the gym back to my work, so after giving it some parking lot tests and looking for brake fluid under the vehicle, I headed back down the road and the brakes felt normal. I dont know if a vacuum line for the brakes went, if there was air in the system, if the booster went or what, but I cant stand potential issues thats I cant recreate to figure out. Im hoping air in the system surfaced since the dealer did change the brakes before I bought it in July. Any other ideas? Edited October 11, 2017 by TheFloppyWeasel Quote Link to comment Share on other sites More sharing options...
akirby Posted October 11, 2017 Report Share Posted October 11, 2017 Sounds like the ABS engaged. Is it possible you hit a slick patch on the road? If not it may be a flaky wheel speed sensor. 2 Quote Link to comment Share on other sites More sharing options...
TheFloppyWeasel Posted October 11, 2017 Author Report Share Posted October 11, 2017 Sounds like the ABS engaged. Is it possible you hit a slick patch on the road? If not it may be a flaky wheel speed sensor. Highly doubtful being dry. Would a wheel speed sensor cause the brakes to go all wet sponge on me? I guess if it engages the ABS it wont allow the brakes to fully engage thus increasing stopping distance and brake mushiness. Quote Link to comment Share on other sites More sharing options...
IWRBB Posted October 11, 2017 Report Share Posted October 11, 2017 I'd bet it was the ABS as well. If you were turning and braking at the same time, it's easy to get the ABS to engage on the side that is unloaded by the turn. Quote Link to comment Share on other sites More sharing options...
akirby Posted October 11, 2017 Report Share Posted October 11, 2017 I don't remember what it feels like when the ABS engages. Quote Link to comment Share on other sites More sharing options...
omar302 Posted October 11, 2017 Report Share Posted October 11, 2017 If the traction light came on briefly, then it might have been the stability control system engaging, which uses the ABS to modulates individual wheel brakes to prevent or reduce a skid. It would also make sense since you were turning. Quote Link to comment Share on other sites More sharing options...
TheFloppyWeasel Posted October 11, 2017 Author Report Share Posted October 11, 2017 If the traction light came on briefly, then it might have been the stability control system engaging, which uses the ABS to modulates individual wheel brakes to prevent or reduce a skid. It would also make sense since you were turning. The only thing here though is that it happened as I was merging into the turn lane and coming to a stop at lower mph. I hadnt started the left turn yet. Maybe that doesnt matter? Would that be a common thing though? Its never done that before and Ive chucked it into a hard turn before while braking hard. Im trying to decide if I need to send it to the dealer or at least have a couple of specific things I can check on myself. Quote Link to comment Share on other sites More sharing options...
akirby Posted October 11, 2017 Report Share Posted October 11, 2017 More common when turning but still possible. I wouldn't worry if the brakes are working ok now until it happens again. Quote Link to comment Share on other sites More sharing options...
TheFloppyWeasel Posted October 11, 2017 Author Report Share Posted October 11, 2017 (edited) More common when turning but still possible. I wouldn't worry if the brakes are working ok now until it happens again.Haha thats what Im worried about...if it happens again. Im about to head home, so well see So I think I may be in luck. Going back to akirbys first response, it could have been a slick spot on the road. As I was driving past the location where the brakes went wonky, I noticed a rather large spot of what looked to be some sort of oil, right where I would have been merging. Im thinking this is what caused the abs to kick in. Edited October 11, 2017 by TheFloppyWeasel Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted October 12, 2017 Report Share Posted October 12, 2017 Had that happen on my MKX. Went back to normal. Took it my dealer and they replaced the power brake booster. 1 Quote Link to comment Share on other sites More sharing options...
akirby Posted October 12, 2017 Report Share Posted October 12, 2017 It could be the brake booster but the noise would indicate the ABS was activated and I didn't think the booster would have anything to do with that. Especially if it returned to normal when the noise stopped. 1 Quote Link to comment Share on other sites More sharing options...
PaulSchott Posted October 13, 2017 Report Share Posted October 13, 2017 I agree with akirby. I'm pretty sure it was normal reaction to hitting that oil patch. It did what it was supposed to do. (scare the crap out of you lol) 1 Quote Link to comment Share on other sites More sharing options...
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