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 sean Your Own Question

sean
sean, UK Ford Master Technician
Category: UK Ford
Satisfied Customers: 2972
Experience:  Ford Master Tech since 2001 & MOT tester mechanic since 1984.
31670004
Type Your UK Ford Question Here...
sean is online now
A new question is answered every 9 seconds

Ford Galaxy: My car keeps overheating only above 40 mph and

Resolved Question:

My car keeps overheating only above 40 mph and not when idling. I have changed the thermostat and semi flushed thro. Could it be the water pump if so where is it ?.
I have ran the engine at speed whilst stationery and no overheating
I have a feeling that this is an intrinsic fault with this model

Over to you
Submitted: 2 years ago.
Category: UK Ford
Expert:  sean replied 2 years ago.

Hello, I hope I can offer you some assistance.

From your description this will be due to the impeller on the water pump coming adrift. The impeller is plastic and when it comes adrift the water pump shaft rotates but the impeller doesn't which means no coolant circulation. The water pump is driven by the timing belt so is behind the timing belt cover when replaced a new timing belt is required .

The reason the engine doesn't over heat at idle is that modern diesel engines are very thermally efficient so not much heat is produced at idle, only when there is a load on the engine does it start to produce more heat.

You are correct in that this is quite a common concern on this engine.

Let me know if I can assist further and I'll reply as soon as I can.

Best wishes,

Sean.

sean, UK Ford Master Technician
Category: UK Ford
Satisfied Customers: 2972
Experience: Ford Master Tech since 2001 & MOT tester mechanic since 1984.
sean and other UK Ford Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
< Last | Next >
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • 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 Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
  • He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX
 
 
 

Meet The Experts:

 
 
 
  • Trev

    UK Ford Car Mechanic

    Satisfied Customers:

    271
    NVQ 3, Modern Apprenticeship, MOT Tester, 15+ years experience diagnostic technician
< Last | Next >
  • http://ww2.justanswer.com/uploads/witt0018/2009-02-09_180738_trev2.jpg Trev's Avatar

    Trev

    UK Ford Car Mechanic

    Satisfied Customers:

    271
    NVQ 3, Modern Apprenticeship, MOT Tester, 15+ years experience diagnostic technician
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Engineer

    Satisfied Customers:

    1090
    BEng hons Mech engineering, in auto industry 22 years
  • http://ww2.justanswer.com/uploads/FO/fordspec/DSC00877.64x64.JPG neil's Avatar

    neil

    UK Ford Car Mechanic

    Satisfied Customers:

    316
    started as appentice electrician , now specialise in transit
  • http://ww2.justanswer.com/uploads/GazzaR1964/2009-06-03_115816_meingarden.jpg Gary Robinson's Avatar

    Gary Robinson

    UK Ford Car Mechanic

    Satisfied Customers:

    233
    25 years of working on Fords, from Cortina's to Kuga's.
  • http://ww2.justanswer.com/uploads/NA/nabilc/2011-1-24_205715_jap500.64x64.jpg Billy's Avatar

    Billy

    Trainer/Master tech.

    Satisfied Customers:

    76
    Trainer 8+ years, Master tech. 10+ years, SAE member
  • http://ww2.justanswer.com/uploads/TE/techmachine/0601821347169_717372168_8940977_39623330_o.64x64.jpg Ross's Avatar

    Ross

    Mechanic

    Satisfied Customers:

    62
    Automotive Technician
  • http://ww2.justanswer.com/uploads/vidinman/2009-12-28_54613_2_wweks_ago_and_then_this_006.jpg DR CAR's Avatar

    DR CAR

    MOSTLY FORD

    Satisfied Customers:

    44
    39 YEARS GARAGE TRADE MOSTLY DIAGNOSTIC AND FAULT FINDING