Not Mustang Tech but Fusion with a 1.5 Turbo Engine

Discussion in '2015+ S550 Mustang 2.3L Ecoboost Tech' started by 86GT351, Nov 3, 2021.

  1. 86GT351

    86GT351 forum member

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    When a vehicle comes in with Multiple Fuel Pressure codes. This is the result we found.



    .The fuel injection pump receives fuel from the fuel pump assembly, increases the fuel pressure from approximately 448 kPa (65 psi) to a PCM determined pressure up to as high as 15 MPa (2175 psi), and delivers it to the fuel railsar comes in with multiple fuel pressure codes. This vehicle has a High Pressure Fuel System.

    We found that The Bushing that rides on the cam lobe that depresses the pump is worn. This is truly what happens when you DO NOT change your oil properly.

    Somewhat expensive fix and obviously car runs like Crap

    FUSION FUEL PUMP.jpg

    FUSION FUEL PUMP 1.jpg
     
    GlassTop09 likes this.
  2. tjm73

    tjm73 of Omicron Persei 8 S197 Team Member

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    Did it take out the cam too?
     
  3. 86GT351

    86GT351 forum member

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    We are checking that now. Does not appear that it did. Slight scratching. Nothing the customer is interested in fixing at this point.
     
    Last edited: Nov 3, 2021
  4. Pentalab

    Pentalab forum member

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    2175 psi is nuts. Is this normal ? The fuel rail pressure on my 2010 mustang is just 40 psi, but's before the injectors.

    My 2011 Fusion, that I bought new back on Jan 2011, still runs like a top, albeit gas mileage around town, with plenty of stop and go seems to have dropped off in recent years..... but still superb on the hwy. This is with the 2.4 L 4 cyl / 175 hp eng..and 6 speed automatic.
     
  5. Jack F

    Jack F Member

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    Direct injection works at much higher pressures than port injection.
     
    Pentalab likes this.
  6. Pentalab

    Pentalab forum member

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    Duh, I shoulda though of that...clean forgot.
     
  7. GlassTop09

    GlassTop09 Member

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    Man from looking at your 1st post I wouldn't want to fathom checking them intake valves either......gotta be carboned up somewhat as well........
     
  8. 86GT351

    86GT351 forum member

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    That is correct. Direct Injection is crazy High Pressure.
     
  9. 86GT351

    86GT351 forum member

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    This vehicle actually belongs to the son of an employee. She gave him a stern talking to about taking care of his vehicle properly.
     
    GlassTop09 likes this.
  10. GlassTop09

    GlassTop09 Member

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    Was definately warranted IMHO.......
     
  11. OX1

    OX1 forum member

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    Common Rail diesels are 8-10 times that. See lower right for my Cummins fuel pressure (maxing out at almost 20K PSI).

    [​IMG]
     
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