2001 Delayed Start
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Cargo Master
Joined: May 2018
Posts: 2,442
Likes: 992
2001 Delayed Start
Hello men,
My 2001 F350 is having a delayed starting issue. Batteries are new FoMoCo and new starter as well. Fuel filter is new and l cleaned the bowl out. GP are working as the voltage drops to around 11v. The truck cranks for an extended period and lights off with no issue. No excess smoke or anything out of the normal once it is running. PCM is an NVK4 with PMT1 files but does it when it is bypassed at 00 too.
If I start the truck and shut it off for 30 seconds or so I get the same delay.
Here is a video.
https://youtu.be/0ipGrsDhFrU
All ideas are welcome!
Thanks
My 2001 F350 is having a delayed starting issue. Batteries are new FoMoCo and new starter as well. Fuel filter is new and l cleaned the bowl out. GP are working as the voltage drops to around 11v. The truck cranks for an extended period and lights off with no issue. No excess smoke or anything out of the normal once it is running. PCM is an NVK4 with PMT1 files but does it when it is bypassed at 00 too.
If I start the truck and shut it off for 30 seconds or so I get the same delay.
Here is a video.
https://youtu.be/0ipGrsDhFrU
All ideas are welcome!
Thanks
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,344
Likes: 5,941
From: Lake Hartwell, GA
Since it does the same delayed start right after shutting it off, I wouldn't suspect a LPOP (HPOP reservoir) leak down. Might be worth checking though as it is easy and on the top.
I see your voltage drop via the Tekonsha, do you know if all of the GP's or only a couple are working properly? I don't know what the voltage drop is if only 2 out of 8 are working is, but like Wesley I am spit balling.
This is a strange one...
I see your voltage drop via the Tekonsha, do you know if all of the GP's or only a couple are working properly? I don't know what the voltage drop is if only 2 out of 8 are working is, but like Wesley I am spit balling.
This is a strange one...
Lead Driver
Joined: Jul 2017
Posts: 6,846
Likes: 2,326
From: WV
Looks like it lit off as soon as the oil pressure started to come up. Maybe coincidence. Seems like mine will start before the gauge registers.
Could it be related to the PCM waiting to see a certain parameter? Tried unplugging unplugging the ICP yet?
Could it be related to the PCM waiting to see a certain parameter? Tried unplugging unplugging the ICP yet?
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
Any way to check live data? ICP and IPR% could show us if the hpo is getting above 500# to fire the injectors. If it is then fuel or electrical is the problem. If not then IPR or pump failing or a leak in hpo system.
It's a Van Gogh
Joined: Feb 2010
Posts: 7,795
Likes: 1,326
From: Elk Grove, CA
Agreed, swap a relay see if it helps.
Thread Starter
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Cargo Master
Joined: May 2018
Posts: 2,442
Likes: 992
The truck ended up sorting itself out. I ran it for about 2 hours and afterwards the delayed start went away completely. It must have had something to do with the truck sitting for a few months.
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FTE Leadership Emeritus
Joined: May 2014
Posts: 27,344
Likes: 5,941
From: Lake Hartwell, GA
It missed you and wanted to spend as much time with you as possible by delaying the start.
Easy day!
Easy day!
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Fleet Mechanic
Joined: Sep 2011
Posts: 1,613
Likes: 106
From: Albuquerque
i wonder if after setting for awhile, the check valve was sticking, took it working a few times and warming up to release, Hpop bleeding down?
just thinking about why things do what they do LOL
just thinking about why things do what they do LOL
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