It3 Posted October 3, 2021 Share Posted October 3, 2021 Hi all, I have a 2015 1.5 L diesel fiesta. Recently ive noticed a problem, when im driving my car above 60 mph it sometimes loses all power (starts slowing down and wont accelerate), when this happens sometimes the traction light comes on, other times it stays off. This doesnt happen all the time, but it does happen a few times a week. Restarting the car seems to reset it and it goes back to normal. Does anyone know what could be causing this? And is it a easy fix? thanks all Quote Link to comment Share on other sites More sharing options...
Blatto Posted October 3, 2021 Share Posted October 3, 2021 Are the engine revs increasing as you accelerate but the road speed not? Quote Link to comment Share on other sites More sharing options...
isetta Posted October 3, 2021 Share Posted October 3, 2021 Get a fault code reader on it. My initial thought is has it got a partially blocked fuel filter. How many miles since fuel filter last changed? I’m not saying it is that, it is an initial guess Quote Link to comment Share on other sites More sharing options...
BigLen Posted October 3, 2021 Share Posted October 3, 2021 14 hours ago, It3 said: Hi all, I have a 2015 1.5 L diesel fiesta. Recently ive noticed a problem, when im driving my car above 60 mph it sometimes loses all power (starts slowing down and wont accelerate), when this happens sometimes the traction light comes on, other times it stays off. This doesn't happen all the time, but it does happen a few times a week. Restarting the car seems to reset it and it goes back to normal. Does anyone know what could be causing this? And is it a easy fix? thanks all possibly dirty Mass Air Flow Sensor or Dirty fuel filter; the second one is going to be very common for those whom have been unfortunate to get fuel from the base of the holding tanks which is where Bertie Basset lives; full of liquorice allsorts important not to physically touch the sensor touching will certainty damage it; use specific foam cleaner Quote Link to comment Share on other sites More sharing options...
It3 Posted October 17, 2021 Author Share Posted October 17, 2021 On 10/3/2021 at 10:23 AM, Blatto said: Are the engine revs increasing as you accelerate but the road speed not? If i remember correctly then the whole car just powers down, even the rev. Quote Link to comment Share on other sites More sharing options...
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