I've had my Fiesta for about 2 months and over the past 3 weeks I've noticed that it's stuggling to get up hills at any decent speed. Also, if I take my foot off the accelerator there is a massive loss of power and speed, eventually it will come to a halt even if going down a hill. Has anyone else had this issue or know what I can try to fix it? Cheers

Is it a 2008+ fiesta? the newer shape?