i have a 14 plate fiesta titanium 1.0 ecoboost, and when i start the engine after being left over night, the oil pressure warning sounds but no lights. if used later in the day nothing sounds

checked oil levels,ok

does anyone here have an inkling as to what it might be

Very long thread on this here:

 

https://www.fordownersclub.com/forums/topic/98500-ecoboost-low-oil-pressure/

 

49 minutes ago, Bodger2 said:

oil pressure warning sounds

STOP driving and don't restart the engine. You can destroy the engine in less that 5 minutes running it with low oil pressure.

There is a very good chance that the oil pump is starting to fail, but whatever the cause don't keep on running the engine until the problem has been fixed.

When did you last change the oil and filter?

19 hours ago, Luke4efc said:

When did you last change the oil and filter?

3 months ago

22 hours ago, unofix said:

STOP driving and don't restart the engine. You can destroy the engine in less that 5 minutes running it with low oil pressure.

 

sorry, didn't make myself clear. the warning sound immediately stops

6 minutes ago, Bodger2 said:

the warning sound immediately stops

Yes I guessed that was the case, but you need to get the fault fixed ASAP. the ecoboost engine is known to have oil pressure problems, spend a few minutes and read this page:- https://www.fordownersclub.com/forums/topic/98500-ecoboost-low-oil-pressure/page/4/#comments

Your engine will go from being able to be fixed to being a pile of scrap in only a few minutes.

2 hours ago, Bodger2 said:

3 months ago

Double check the filter has been fitted properly, I've seen that cause this issue before.

Have you ever done an oil/engine flush?