How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Matt Your Own Question

Matt
Matt, Mechanical Engineer
Category: Ford
Satisfied Customers: 21106
Experience:  BEng hons Mech engineering, in auto industry 22 years
12772297
Type Your Ford Question Here...
Matt is online now

fiesta eco boost engine only done 500 miles and after 30 mile

Resolved Question:

fiesta eco boost engine only done 500 miles and afterXXXXXmade a high pitched buzzing noise and when I opened the bonnet the coolant seemed to be bubbling/flowing but engine was off. Did this for around 5-10 mins.
Submitted: 2 years ago.
Category: Ford
Expert:  Matt replied 2 years ago.
Hello

for the coolant to be bubbling away with the engine off I'd say that there must be some air in the cooling system

So check that the small hoses that run from the top of the engine and radiator that run back to the header / expansion tank are free flowing and not blocked

 

If these are OK then remove the tank pressure cap and run the engine from cold with the heater set to full hot

As the engine starts to warm, squeeze the large hoses running to the radiator to help displace any air - all the time keeping an eye on the level in the header tank, making sure it doesn't drop below the minimum and open any bleed screws built into the top cooling hoses - closing them off as soon as they start to gush water

Once the engine is up to temperature the tank should be quite full. Switch the engine off and leave it to cool Then top up to the mark once its all cold and replace the cap

Customer: replied 2 years ago.

What could the buzzing noise from the engine be

Expert:  Matt replied 2 years ago.
Hello

the buzzing may be the intercooler pump or possibly the throttle body as both of these can make this noise

if you could indentify wherabouts on the engine the noise is coming from I'll try to help furhter
Customer: replied 2 years ago.

It was difficult to find but would say top back but a bit lower

Expert:  Matt replied 2 years ago.

Hello David

OK that sounds like its likely to be the throttle

they do tend to buzz for a few seconds on start up / shut down

but if its carrying on for 30 seconds then something isn't right and I'd 1st suggest cleaning out the throttle using a clean rag with some brake cleaner

Matt, Mechanical Engineer
Category: Ford
Satisfied Customers: 21106
Experience: BEng hons Mech engineering, in auto industry 22 years
Matt and other Ford Specialists are ready to help you

What Customers are Saying:

 
 
 
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil
< Previous | Next >
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
 
 
 

Meet The Experts:

 
 
 
  • Matt

    Matt

    Mechanical Engineer

    Satisfied Customers:

    190
    BEng hons Mech engineering, in auto industry 22 years
< Previous | Next >
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Mechanical Engineer

    Satisfied Customers:

    190
    BEng hons Mech engineering, in auto industry 22 years
  • http://ww2.justanswer.com/uploads/MI/mikeamechanic/2013-4-2_175558_photo.64x64.JPG Mike Kelly's Avatar

    Mike Kelly

    Ford Mechanic

    Satisfied Customers:

    140
    17 years experience as an auto mechanic, foreign and domestic. 5 years running my own repair business.
  • http://ww2.justanswer.com/uploads/FO/fordspec/DSC00877.64x64.JPG fordspec's Avatar

    fordspec

    Ford Technician

    Satisfied Customers:

    11
    ford technician
  • http://ww2.justanswer.com/uploads/AL/allagher/2015-6-23_213635_image.64x64.jpg Gallagher99's Avatar

    Gallagher99

    Senior Vehicle Technician

    Satisfied Customers:

    587
    SVQ LEVEL 3, QAULIFIED FORD SENIOR TECHNICIAN , ATA REGISTERD ,12 YEARS EXPERIENCE
  • http://ww2.justanswer.com/uploads/FO/fordtwo/2014-12-19_163422_arrepair.64x64.jpg Robert's Avatar

    Robert

    Ford Technician

    Satisfied Customers:

    43
    Fully qualified 19+yrs exp/self employed technician in the UK
  • /img/opt/shirt.png Mark's Avatar

    Mark

    Auto Service Technician

    Satisfied Customers:

    59
    Qualified City & Guilds
 
 
 

Related Ford Questions