Rachel8889 Posted April 18, 2021 Share Posted April 18, 2021 (edited) 2017 Fiesta 1.25 manual When I have been driving I have experienced a loss of power (like I'm in the wrong gear) so I drop a gear and accelerate to pick up the loss of speed to find the car holds back and loses power again, problem occurred 4 times tonight whilst on short trips, yesterday I went for a long drive (roughly 120 miles ) and no problem occurred. The loss of power has been intermittent over a few weeks but more so today. Any ideas? Fuel pump? Throttle body sensor? Edited April 18, 2021 by Rachel8889 Quote Link to comment Share on other sites More sharing options...
Neb_engineer Posted April 18, 2021 Share Posted April 18, 2021 2 minutes ago, Rachel8889 said: 2017 Fiesta 1.25 When I have been driving I have experienced a loss of power (like I'm in the wrong gear) so I drop a gear and accelerate to pick up the loss of speed to find the car holds back and loses power again, problem occurred 4 times tonight whilst on short trips, yesterday I went for a long drive (roughly 120 miles ) and no problem occurred. The loss of power has been intermittent over a few weeks but more so today. Any ideas? Fuel pump? Throttle body sensor? is it a manual or auto? Quote Link to comment Share on other sites More sharing options...
Rachel8889 Posted April 18, 2021 Author Share Posted April 18, 2021 Manual Quote Link to comment Share on other sites More sharing options...
Neb_engineer Posted April 18, 2021 Share Posted April 18, 2021 when you loose power is the car gaining revs despite the loss of speed? Quote Link to comment Share on other sites More sharing options...
Rachel8889 Posted April 18, 2021 Author Share Posted April 18, 2021 3 minutes ago, Neb_engineer said: when you loose power is the car gaining revs despite the loss of speed? To be honest I don't really notice, i kind of panic ... as i don't want the car to stall . The only way to describe it , is like when your driving up a steep hill and you begin to lose power so you drop down a gear to gain power. Quote Link to comment Share on other sites More sharing options...
Neb_engineer Posted April 18, 2021 Share Posted April 18, 2021 If it was gaining revs as the car lost power i would say clutch related, however what your describing sounds more like either a fuel problem or the intake being overly restricted (most likely from a clogged air filter) Quote Link to comment Share on other sites More sharing options...
Rachel8889 Posted April 18, 2021 Author Share Posted April 18, 2021 My thoughts exactly, but wasn't too sure. I will get the other half to change the air filter asap , hopefully it's a small issue 😬😬 Thank you 1 Quote Link to comment Share on other sites More sharing options...
Luke4efc Posted April 18, 2021 Share Posted April 18, 2021 I'd guess your MAF sensor is playing up, but it's hard to say without some live data. Could be anything from plugs/leads to an o2 sensor. Quote Link to comment Share on other sites More sharing options...
Rachel8889 Posted April 19, 2021 Author Share Posted April 19, 2021 Quick update Partner drove my car today and the loss of power still present, and then the message 'engine service ' popped up on the stereo along with the spanner, he clicked ok and the message/spanner went away.... ge said it has been fine since . Quote Link to comment Share on other sites More sharing options...
Tiexen Posted April 19, 2021 Share Posted April 19, 2021 When was it last serviced? Quote Link to comment Share on other sites More sharing options...
Rachel8889 Posted April 19, 2021 Author Share Posted April 19, 2021 He did a part service 6 months ago and I have done 8000 miles since . Had new spark plugs , oil drained and new put in and he changed the air filter . Quote Link to comment Share on other sites More sharing options...
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