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1.0 l ecoboost engine. Oil lamp flickers sporadically

Customer Question
1.0 l ecoboost engine...

1.0 l ecoboost engine. Oil lamp flickers sporadically started after an engine high pressure wash today

Mechanic's Assistant: When was your last oil change?

Only a few hundred kilometers. just bought the car, newly serviced I suspect hunidity or a loose connector

Mechanic's Assistant: What is the model/year of your Ford?

2014 Fiesta (europe)

Mechanic's Assistant: Are you fixing your Fiesta yourself? What have you tried so far?

33000 kilometers

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I have just looked inot the engine bay for any obvious loose items did not see any. trying to locate the oil gauge connector, but hard to guess

Submitted: 7 months ago.Category: UK Car
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Answered in 1 hour by:
1/17/2018
UK Auto Mechanic: Matt, Mechanical Engineer replied 7 months ago
Matt
Matt, Mechanical Engineer
Category: UK Car
Satisfied Customers: 23,469
Experience: BEng hons Mech engineering, in auto industry 22 years
Verified

Hello and welcome to Just Answer

I'd 1st suggest measuring the actual oil pressure with separate mechanical gauge - this can be plumbed into the engine via the current pressure switch port - if you use a Tee piece you can keep the pressure switch plumbed in as well and so see if the low pressure light corresponds to a low pressure reading.

As its intermittent and you have no rumbling or rattling noises from the engine its likely to be an electrical fault so 1st check the connection to the pressure switch is bright and clean and check back along the switch wiring for any signs of damage to the insulation

As if the wire is grounded out at any point then this will also turn on the light.

if this is all OK and the oil pressure is at least 1.3Bar ( 20psi) at hot idle then replace the switch

If you do have a low pressure reading and to turn on the light it will be very low about 5psi then replace the oil pump and ensure that the pump pickup in the sump hasn't come loose or is blocked

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UK Auto Mechanic: Matt, Mechanical Engineer replied 7 months ago

My goal is to give you the best advice that I can and I hope that I've helped today. Please remember to rate my service by selecting from the 5 stars at the top of the screen before you leave. If you need more help, use the reply box to let me know.
If you're not pleased, also let me know because rating bad does not result in a refund, there are better options. Rating now will not close this post nor prevent further replies
Thanks Matt

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UK Auto Mechanic: Matt, Mechanical Engineer replied 6 months ago

Hi
do you still need help?
Bear in mind that the site takes a deposit from you at the beginning and this is held by the site until you rate my answer at which point the cash is split between the site and the expert. I am only paid for my work on this question if you rate my answer, using the star system at the top of the screen. Please do not forget! If you're not pleased, also let me know because rating bad does not result in a refund, there are better options. Rating now will not close this post nor prevent further replies
Thanks Matt

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