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Known fault

1.0 EcoBoost: the oil pump drive belt fails

It does not show up on every car. Check before you buy.

critical

severity

not available

mileage

1

sources

1 source next to the write-up.

The fault

How you spot it

The oil pump is driven by a toothed belt running in oil, not by a chain. The belt and its tensioner age, and according to the authority they can fail. Oil pressure is then lost.

NHTSA issued a campaign for this in December 2023 (23V905000), covering the 2016–2018 Focus and the 2018–2022 EcoSport. The authority states that the loss of pressure leads to an engine stall and a loss of power braking assist, which is a crash risk.

The belt runs in oil, under the cover, so you cannot see it from outside. Rubber debris from a disintegrating belt ends up in the sump, and that debris can also block the oil pick-up strainer.

Which model

Who it affects

The card opens the generation, the engine or the transmission.

Generations and models

2 generations.

Checklist

1.0 EcoBoost: the oil pump drive belt fails

What you would check for this fault. Take it to the car.

Before you buy

Checklist

What you tick stays on this device only.

vinkodex.com · Before you buy it, see what can go wrong.

Sources

How we know

Information, not an expert opinion

We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.

  • A fault on the list does not mean the car you are looking at has it.
  • A fault missing from the list does not mean the model is fault-free. Write-ups are made model by model. Not all of them are done.
  • You decide whether to buy. This is no substitute for an inspection. That needs a workshop and a history check.
Details in the terms