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Ford Fiesta 1.0 Ecoboost - Throttle Hesitation

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Hi All

I've got a 2018 Fiesta 1.0 Ecoboost with 50k on the clock. Recently it's developed an annoying problem with the throttle in that when accelerating up through the gears the throttle seems to hesitate, lose all power and then immediately go back to normal operation. It only happens while changing up through the gears and doesn't seem to happen when I berry the peddle without changing gear. I'm hoping this resonates with someone who's suffered a similar problem as I really don't want throw parts and labour at trying to figure out what the issue is. I've previously owned Land Rovers and know how easy it is to chase an issue without actually fixing it 😉

Can anyone suggest what a possible cause of this problem is?



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Last June was the last time it had a service but I'm not sure whether the plugs were replaced or not. It was performed by the dealer that I purchased the car from, so probably not 🤔
It's due for a service soon (at a Ford dealer this time) so I'll certainly make sure they're replaced then. 

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