Ford F-250 & Ford F-350 The heavier duty full sized trucks from Ford, offering bigger, more powerful engines and drivetrains for the abuse they may go through in the workplace.

On going problem

  #11  
Old 04-15-2018, 07:00 AM
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The MAF could be the problem, but I doubt the PCM is.
 
  #12  
Old 04-15-2018, 07:13 AM
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I think your right-I will try that this week,,I have a source of parts -used-and will see what happens,I dread the thought that the intake manifold gaskets may also be the problem...I had a so-called Ford tech tell me that... he didn't check...and then another told me-maybe the fuel pump...and didn't either.This area is full of experts..hah,,,

Thanks Hanky--will keep you posted, This Van is like new condition-70,000 miles...it's a shame it's making it impossible to do my work///but thats life..

John
 
  #13  
Old 04-15-2018, 07:21 AM
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After you take care of this little problem, and it is not a disaster, you will look back and wonder how you missed the small item.
 
  #14  
Old 04-15-2018, 07:31 AM
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Ha !!! Exactly ! It happens frequently in my Refrigeration business...Quite often we say " How did I miss that " Right...
Got to love these cars-truck with EPA inspired designs...
 
  #15  
Old 04-15-2018, 07:12 PM
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Now I know why you are keeping your "cool" !
 
  #16  
Old 04-15-2018, 07:36 PM
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HAAAA ! That's it...I ordered a fuel pressure gauge with adaptors...I plan to check the fuel pump while driving and see how it;s performing...


before replacing the Map and PCM I did spray nonflammablebrakecleaner over the upper and lower intake area...no change of engine speed at all..

John
 
  #17  
Old 04-16-2018, 03:46 AM
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The 4.9s didn't have much problem with intake manifold gaskets , just the Vs.
 
  #18  
Old 04-16-2018, 06:57 AM
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Thanks Hanky-Thats good to know,,,
 
  #19  
Old 04-18-2018, 01:26 PM
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Hello Hanky- You were right on ! It was the MAF sensor !!! Never received a code-but you were right,,,Van runs like a big dog..

Thanks a million for all the help..


John
 
  #20  
Old 04-18-2018, 01:46 PM
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Thanks for the update. Now that you corrected the problem, what are you going to do with all that spare time now? lol
 

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