Next step in no start help
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4wd Low
Joined: Dec 2021
Posts: 13
Likes: 0
Next step in no start help
So I have an 05 f350. Few days ago took a few extra seconds of cranking to start, next day even longer crank, then no start. Hooked up the scan tool.
hpop pressure only getting to 80psi. So I pulled the IPR and the screen and plastic housing was gone...
not sure where, I went fishing in the hole with a pick but found nothing. Replaced the IPR. Changed the oil, still no start. Pulled the relief valve on the low pressure pump, no chunks of the missing screen if they would even get there. Oil filter housing fills with oil in a few seconds when cranking so I think the low pressure oil pump is ok?
Disconnected the icp , no start.
I can post all the scan tool readings if needed. Everything looked good to me or at least what I know.
260,000 km
58v ficm
good bats, fully charged
all new injectors this winter
egr delete
hpop pressure only getting to 80psi. So I pulled the IPR and the screen and plastic housing was gone...
not sure where, I went fishing in the hole with a pick but found nothing. Replaced the IPR. Changed the oil, still no start. Pulled the relief valve on the low pressure pump, no chunks of the missing screen if they would even get there. Oil filter housing fills with oil in a few seconds when cranking so I think the low pressure oil pump is ok?
Disconnected the icp , no start.
I can post all the scan tool readings if needed. Everything looked good to me or at least what I know.
260,000 km
58v ficm
good bats, fully charged
all new injectors this winter
egr delete
Tuned
Joined: Oct 2015
Posts: 392
Likes: 86
From: Roebuck, SC
Last spring/summer I went through the no start, long start cold, no hot start, condition several times.
On the last iteration here's what I did.
replaced:
Have you changed the STC fitting on the HPOP? 05 trucks have the snap to connect fitting that can fail.
The major issue I had last year was buying cheap parts from Amazon. Some of the injector top seals would only last a few days, then be worn out completely. As annoying as it is, I think it's best to stick with known good parts. YMMV
Good Luck.
On the last iteration here's what I did.
replaced:
- nipple cups and seals (HHC diesel)
- stand pipes (genuine Motorcraft)
- injector top seals (Alliance)
- change oil and filter (triax supreme 5w-40, motorcraft filter)
- new IPR valve and screen
Have you changed the STC fitting on the HPOP? 05 trucks have the snap to connect fitting that can fail.
The major issue I had last year was buying cheap parts from Amazon. Some of the injector top seals would only last a few days, then be worn out completely. As annoying as it is, I think it's best to stick with known good parts. YMMV
Good Luck.
Lead Driver
Joined: Mar 2010
Posts: 5,505
Likes: 256
From: Woodbridge, Ontario, CA
But what does it rise to when cranking? 84.77%? What about ICP volts/psi at KOEO and when cranking?
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4wd Low
Joined: Dec 2021
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icp 0.2 key on. 0.4 while cranking.
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