u/OwlTerrible9295

▲ 4 r/FordFocus+1 crossposts

2014 (63 Plate) Ford Fiesta Zetec 80 - High Idle (1.5-2k), throttle use sets off high idle, cuts out in traffic at times. (UK) *PLEASE HELP*

Hoping someone can help me?

I have a problem with my 2014 ford fiesta Zetec 80. The issue is as described with more context below.

- The engine cuts out in slow traffic (but starts up again with no drama).
- The revs idle at 1.5k-2K - usually only after throttle has been engaged and car stops. Sometimes a little jerky with the car rolling and my foot off the accelerator.
- Braking is more of an effort, but does not feel weakened or poor.
- Throttle body was recently replaced but this seems to have done nothing and the issue has got worse.
- Timing chain replaced 15k miles ago.
- Fuel economy as of recently has dipped a bit.
- Air conditioning seems to stabilize the rough revs, as does general fans being turned on.
- Cars coolant tank cap recently flew off after the coolant was changed, coolant leaking everywhere. Replacing the cap seemed to fix this in and of itself.
- I have had 2 mechanics look over this, and neither seem 100% certain on what it is.
- NO fault codes show on a diagnostic.

Please can someone advise me if they have had similar issues to this, and if so, what they found the issue to be? Or if any mechanics happen to be aware of such an issue, I’d really appreciate a comment.

I use my car for work, and need it for a million other reasons, so I would like to find out if it is a known issue that can be fixed, or if I should scrap the car, as soon as I can.

Many thanks in advance!!

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u/OwlTerrible9295 — 3 days ago