I got my truck April last year. Lie dash said 12. Changed both fuel filters. Cleaned my map sensor. Now it says 15.5 to 15.7 not pulling. Calculated it by hand and got 15.5 so that helped
Just watched your first video and subscribed to your channel. I left a book there. Thanks for your update and leg work on this. 6 years ago I didn’t realize what I was buying. Man have I’ve learned a lot about 6.4’s. My first Ford diesel as well. I had Dodges with 5.9 Cummins and 6 speed before this. How I miss the 5.9’s not so sensitive motors. I love the interior and body of the Ford. I’ve been lucky with my 6.4. Maintenance, maintenance, maintenance and more maintenance.....LOL! I just did my body mounts as well. It was a fun ordeal. I added Rough Country dual shock stabilizer when I run my 24/35. Really helps with the death wobble running 35’s or bigger. I run stocks tires in the winter. Thanks again for the update!
@@USAF99 Thanks. I will be changing mine also (MAP) sensor. I just pulled my 30' travel trailer 1700 miles and only got 8.5 to 10 mpg. I know the 6.4 is thirsty so anything to save fuel helps. Thanks..
Just did mine today and I gave them this part number USAF99 listed. The package also had CX-2161 part number along with the number listed. I bought the last one they had. Mine was not clogged at all but was dirty. Did a quick cleaning of the old one and put it back in the package for just in case moment. Took longer to find my socket for sensor than removing and installing.
I would hook a fuel pressure gauge to the fuel test port and see what your pressure is, might have a weak HPFP. Not just at an idle either, make sure the test line is long enough to run it through an open window and look at fuel pressure under a load (driving down the street...safely).
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I got my truck April last year. Lie dash said 12. Changed both fuel filters. Cleaned my map sensor. Now it says 15.5 to 15.7 not pulling. Calculated it by hand and got 15.5 so that helped
Just watched your first video and subscribed to your channel. I left a book there. Thanks for your update and leg work on this. 6 years ago I didn’t realize what I was buying. Man have I’ve learned a lot about 6.4’s. My first Ford diesel as well. I had Dodges with 5.9 Cummins and 6 speed before this. How I miss the 5.9’s not so sensitive motors. I love the interior and body of the Ford. I’ve been lucky with my 6.4. Maintenance, maintenance, maintenance and more maintenance.....LOL! I just did my body mounts as well. It was a fun ordeal. I added Rough Country dual shock stabilizer when I run my 24/35. Really helps with the death wobble running 35’s or bigger. I run stocks tires in the winter. Thanks again for the update!
Thank you I will be changing mine here shortly
So just to be clear, on a fully deleted truck does the MAO sensor still affect fuel mileage?
It seems to have for mine!
@@USAF99 Thanks. I will be changing mine also (MAP) sensor. I just pulled my 30' travel trailer 1700 miles and only got 8.5 to 10 mpg. I know the 6.4 is thirsty so anything to save fuel helps.
Thanks..
Do you have the part number for the Ford OEM sensor ? Had the same issue you did and just went with part from Auto Zone .
Yeah man, its 8C3Z-9F479-A
Just did mine today and I gave them this part number USAF99 listed. The package also had CX-2161 part number along with the number listed. I bought the last one they had. Mine was not clogged at all but was dirty. Did a quick cleaning of the old one and put it back in the package for just in case moment. Took longer to find my socket for sensor than removing and installing.
My 6.4 has a hard time starting after it’s warmed up cranks longer than it should to fire when it’s cold it fires right up any other ideas?
I would hook a fuel pressure gauge to the fuel test port and see what your pressure is, might have a weak HPFP. Not just at an idle either, make sure the test line is long enough to run it through an open window and look at fuel pressure under a load (driving down the street...safely).
How did the O'Reilly part look when you pulled it out.
Just fine. Little black but that's to be expected.