Engine cranks would not start, but when I sprayed as shown in video it started right away?

Tiny
AZZAM12AZZAM
  • MEMBER
  • 2010 FORD F-450
  • 82,000 MILES
Dear sir, I have a Ford e450 diesel 6.0 year 2010. My problem I crank but wouldn't start but when I sprayed as shown in video start right away. I drive everything is perfect even I stop the car for 3 hours and crank start fine without spree. But my problem if I park overnight and after approximately 10 or 11 hours when crank wouldn't start, so I have to do the spray process again to start and so on. I checked the oil regulator. It seems fine I was wondering if it is a fuse or sensor. Where is it located? If this is the problem where can I look to solve this problem? Thank you. Pic for the car and two videos explaining what I did.
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Thursday, August 18th, 2022 AT 3:11 PM

25 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

It sounds like the fuel pressure to start it isn't present. Do me a favor. Try this test and let me know what happens:

1) Turn the key from off to the on position (engine off) and count to 5.

2) Turn the key off and repeat step 1 a total of 5 times.

3) On the 6th time, see if it will start.

Let me know.

Joe
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Thursday, August 18th, 2022 AT 10:13 PM
Tiny
AZZAM12AZZAM
  • MEMBER
  • 86 POSTS
Thanks, a lot Joe you made me happy today. I did what you have said and start right away
Two days before I had this problem I refilled the tank where I had less than a quarter fuel remain this could be a reason? Or what was the reason if I may ask from your experience should I take further action so this is want to happen again or it is normal problem
Thanks again Joe I really appreciate your help.
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Friday, August 19th, 2022 AT 2:43 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

It appears there could be a fuel pressure drop-off issue. Cycling the switch forced the pump to prime five times before you tried starting.

Let's see if it continues working for you. If something changes, we will need to check fuel pressure and see how quickly it drops. In reality, we may have a pump that is getting tired.

Regardless, let me know if things change. Also, please feel free to come back anytime in the future. You are always welcome here.

Take care,

Joe
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Friday, August 19th, 2022 AT 10:59 PM
Tiny
AZZAM12AZZAM
  • MEMBER
  • 86 POSTS
Hi Joe,

You are right today I had the same issue didn't start I tried the little trick you taught me didn't work I hear the fuel pump function when a but key in on position for about five second or a little bit more.
Now what do you suggest I should do?
Also, I would like to thank you for welcoming me always here.
Best regards,
Azzam
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Saturday, August 20th, 2022 AT 5:02 AM
Tiny
AZZAM12AZZAM
  • MEMBER
  • 86 POSTS
After I sent replay I checked the fuel filter under chase and this is how it looks. I will buy new hopefully this is the problem.
Thanks
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Saturday, August 20th, 2022 AT 8:04 AM
Tiny
AZZAM12AZZAM
  • MEMBER
  • 86 POSTS
This is.
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Saturday, August 20th, 2022 AT 8:05 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

That certainly can be at least part of the cause. If you have a chance, could you let me know if it helps? I'm interested in knowing.

Take care,

Joe
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Saturday, August 20th, 2022 AT 9:22 PM
Tiny
AZZAM12AZZAM
  • MEMBER
  • 86 POSTS
I am not sure my replay was delivered.
But I will say it again if I but new filter should I do the same process or crank right away?
Thanks Joe.
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Sunday, August 21st, 2022 AT 11:56 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

The first time you do it, cycle the switch. See if it starts normally after that.

Let me know.

Joe
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Sunday, August 21st, 2022 AT 5:39 PM
Tiny
AZZAM12AZZAM
  • MEMBER
  • 86 POSTS
Hi Joe,

I but the filter I cycled switch but unfortunately didn't start so l had to start with spray.
If I may ask why the first time you sent me how to cycle the switch start right away but then when I used this method didn't work.
And what is next step will be?
I always wonder Joe why the car starts with spray and every things run smooth but if I leave it 10 hours or more not starting but a leave it less than that 4 or 5 hours start normally
The fuel pump sound function as normally as far as I know is there easier way to check it and is oil regulator could be a reason.
Sory for asking to much your patients I help encouraging me to ask.
Good day
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Monday, August 22nd, 2022 AT 12:45 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

No problem whatsoever. You can ask as many questions as you want. LOL

I feel cycling the switch the first time allowed the fuel pump to build enough pressure to start it. If you tried it after replacing the filter, it may have required more time because the filter needed to refill and build pressure.

If I have to guess, I feel there is fuel pressure drop-off. When the engine is off long enough, the pressure is dropping too much and it won't start.

Try the key cycling again now that it has run and let me know if it works.

Also, the next step would be to test the fuel pressure to see if it jumps to the manufacturer's specifications.

If you look below, I attached the directions. The last pic has the specs. Also, the 6.0L wasn't offered in the F series. It was in the E series. Could you confirm that for me?

Let me know.

Joe

See pics below.
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Monday, August 22nd, 2022 AT 9:03 PM
Tiny
AZZAM12AZZAM
  • MEMBER
  • 86 POSTS
Thanks a lot Joe I really appreciated it.
I asked a technician friend for help, he will come next week
Now am using the car is there harm for engine or injector so far, the car run just perfect heat rbm oil looks good no check engine sign I can feel the engine performed strong as should especially after I changed the filter I noticed the difference accelerate faster or should I park it?
I wiil keep in touch as soon as he comes.
He mentioned to me the oil regulator could be a reason, do you agree?
Thanks again Joe, I really highly appreciated you helping me.
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Tuesday, August 23rd, 2022 AT 3:40 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

You are very welcome. And yes, the regulator can be an issue. Is it now starting for you, or do you still need to prime it with starting fluid or cycling the switch?

Let me know.

Joe
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Tuesday, August 23rd, 2022 AT 7:22 PM
Tiny
AZZAM12AZZAM
  • MEMBER
  • 86 POSTS
Hi Joe,

I am still using the starting fluid every morning.
What amazes me Joe, is cycling the key worked perfect first but then I try every morning no luck I don't know why.
Secondly the car keeps running and cranks right away the whole day even I leave it for 4 or 5 hours but what I have noticed when I park it for 8 hours or more went start from your point of view, why?
Thanks a million Joe.
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Wednesday, August 24th, 2022 AT 3:30 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Something within the fuel system is either losing fuel pressure or the pump just isn't providing enough pressure to start it.

Have you been able to test the fuel pressure?

Joe
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Wednesday, August 24th, 2022 AT 7:16 PM
Tiny
AZZAM12AZZAM
  • MEMBER
  • 86 POSTS
Hi Joe,

No, not yet because my best scale in cars change the batteries.
I asked friend he is a mechanic, for help he will come next week I will let you know of the results.
Thanks, Joe, for every thing.
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Thursday, August 25th, 2022 AT 4:33 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

You are very welcome. I hope he is able to solve the problem.

I look forward to hearing from you. I'm interested in knowing what you find.

Take care,

Joe
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Thursday, August 25th, 2022 AT 6:29 PM
Tiny
AZZAM12AZZAM
  • MEMBER
  • 86 POSTS
Hi again Joe,

It took some time to for the job, we checked the fuel pressure was in range also no bubbles I have but nre ipr and EGR new oil and filter I still have the same problem sometimes it start after long crank sometimes with spray but I notice when it is hot start right away within 2 second I scan with OBD I got these code:
U0073
P0623
P300a

Even though I am not sure the guy who did this scan professional
I suspect may be sensor I will keep tracking but does the code above mean something that helps.
Thanks Joe.
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Thursday, September 15th, 2022 AT 4:09 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

The P0300 is likely related. It indicates a random misfire. The other two codes are not related. One is an issue with the ABS, and one deals with the alternator lamp. If you look at the first three pics, they indicate what each code indicated.

The remaining pics are to check the misfire monitor. Check to make sure there are no wiring issues.

Let me know.

Joe

See pics below.
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Thursday, September 15th, 2022 AT 6:10 PM
Tiny
AZZAM12AZZAM
  • MEMBER
  • 86 POSTS
Hi Joe,

Thanks a lot for your help and support and all the information you have sent.
ICP wiring was the problem I fixed it things went back to normal
Thanks again Joe.
If I may ask, while I was trying to figure out where is the problem I have installed a new camshaft I had these code in OBD but did not come again. May I know what's that and how to fix it in case appears again?
I am really thankful for everything you did for me.
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Wednesday, October 5th, 2022 AT 4:16 PM

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