Craig33 Posted September 8, 2023 Share Posted September 8, 2023 Hey all, I'm looking for some help and advice with my ford fiesta st line 140bhp 2017 model. For the last 6 months I've had a terrible mechanical noise under brake application from about 40mph and below, getting louder the more the car slows to a hault. I've had the discs and pads replaced twice with brand new ones so I'm pretty sure the breaks are not the problem although it only happens when break pedal is pressed. Been to 2 top garages and they've been no help. I will include a link to a video I took whilst approaching a junction. Listen all the way to the end and notice how the noise gets deeper and louder as the car comes to a stop. It's pretty much undriveable at the moment and driving me insane. If anyone could give any tips or advice I'd be really greatful 馃憤聽 https://youtube.com/shorts/vvxOIPV7n1E?si=lNz2h3hSN56hMVQ5 Quote Link to comment Share on other sites More sharing options...
TomsFocus Posted September 8, 2023 Share Posted September 8, 2023 Well, that sounds horrific. I don't think it's the brakes.聽 That sounds more like a bearing.聽 Diff bearing would be my first thought.聽 Though I'd want to rule out wheel bearings, CV joints and driveshaft intermediate bearing before condemning the gearbox. 1 Quote Link to comment Share on other sites More sharing options...
Craig33 Posted September 8, 2023 Author Share Posted September 8, 2023 It is horrific, I've had it to the garage 5 times, and now they don't want to know me. So took it to another garage and they said putting genuine ford brakes and pads will sort it and that will be 拢355. I said no as it's clearly nothing to do with the brakes. It only starts after about 10 mins of driving so when things heat up and is worse on really warm days. Clutch in or out makes no difference, happens only when the brake pedal is applied. My thoughts were also gearbox or driveshaft just need a proper diagnosis but no idea where to take it now. Quote Link to comment Share on other sites More sharing options...
RayC333 Posted September 8, 2023 Share Posted September 8, 2023 Assume the noise is coming from the front of the car? Noise equally distributed or sounds more from the nearside or offside?聽 Concerning that you've been fobbed off at your local garages. Have they had it up on a lift and checked for abnormal movement, feel and sound? I agree with Tom on the most likely cause(s). Quote Link to comment Share on other sites More sharing options...
Craig33 Posted September 8, 2023 Author Share Posted September 8, 2023 32 minutes ago, RayC333 said: Assume the noise is coming from the front of the car? Noise equally distributed or sounds more from the nearside or offside?聽 Concerning that you've been fobbed off at your local garages. Have they had it up on a lift and checked for abnormal movement, feel and sound? I agree with Tom on the most likely cause(s). Yes correct, it's coming from the front. Very hard to pin point exactly where as its so loud but I would say through the drivers footwell / towards the center of the car. Probably evenly distributed as girlfriend can hear it the same from the passenger seat. Yeah it's disappointing to say the least,they've done checks, taken it for test drives, had it on the ramps etc proper Bosch certified garages too. Not to mention they are charging me for all this labour aswell and I'm still no further forward. I said I think it's the driveshaft or gearbox from the get go but they just dismiss it. Very poor. I have a platinum RAC聽 warranty on the car, but need someone competent to identify what the issue is before I can start a claim which is proving extremely difficult.聽 1 Quote Link to comment Share on other sites More sharing options...
TomsFocus Posted September 9, 2023 Share Posted September 9, 2023 I can't recommend anyone specific in your location but would suggest trying a transmission specialist next. 1 Quote Link to comment Share on other sites More sharing options...
RayC333 Posted September 9, 2023 Share Posted September 9, 2023 https://www.youtube.com/watch?v=Xt-aVc9wRB0 At about 36 - 46 seconds in. Similar sound? Intermediate drive shaft bearing? If it were my car that's what I would be unbolting and checking.聽 Also this ...聽https://www.fiestafaction.com/threads/driveshaft-support-bearing.55362/ Doesn't make sense though if the mechanics thus far say no. 1 Quote Link to comment Share on other sites More sharing options...
Craig33 Posted September 10, 2023 Author Share Posted September 10, 2023 On 9/9/2023 at 7:12 PM, RayC333 said: https://www.youtube.com/watch?v=Xt-aVc9wRB0 At about 36 - 46 seconds in. Similar sound? Intermediate drive shaft bearing? If it were my car that's what I would be unbolting and checking.聽 Also this ...聽https://www.fiestafaction.com/threads/driveshaft-support-bearing.55362/ Doesn't make sense though if the mechanics thus far say no. That's a massive help, the 2nd one is spot on, that's what mine started off sounding like but obviously it's alot worse now. I'm going to call the garage tomorrow and get them to look specifically at this and any other bearings at the front. Cheers 馃憤聽 Quote Link to comment Share on other sites More sharing options...
Jon21 Posted September 21, 2023 Share Posted September 21, 2023 On 9/10/2023 at 9:04 PM, Craig33 said: That's a massive help, the 2nd one is spot on, that's what mine started off sounding like but obviously it's alot worse now. I'm going to call the garage tomorrow and get them to look specifically at this and any other bearings at the front. Cheers 馃憤聽 Hi, can you let me know if this was resolved? I have exactly the same issue on my 2017 ST and the Ford Garage have looked at it twice and cannot help as it can鈥檛 be replicated on a short drive! They are focused on the brakes and haven鈥檛 mentioned the driveshaft. Would be really helpful if you could let me know your outcome. Thanks聽 Quote Link to comment Share on other sites More sharing options...
Shaecb Posted March 18 Share Posted March 18 On 9/21/2023 at 10:14 PM, Jon21 said: Hi, can you let me know if this was resolved? I have exactly the same issue on my 2017 ST and the Ford Garage have looked at it twice and cannot help as it can鈥檛 be replicated on a short drive! They are focused on the brakes and haven鈥檛 mentioned the driveshaft. Would be really helpful if you could let me know your outcome. Thanks聽 Hi, did you get this resolved? And what was the isssue causing it?聽 Quote Link to comment Share on other sites More sharing options...
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