Which HPOP to replace
Thread Starter
|
Cross-Country
Joined: Jul 2010
Posts: 96
Likes: 1
From: on the river
Which HPOP to replace
Have an 04 350 from what I have figuard out is that the HPOP ball bearing has gone out, hard start first thing in the morning and oil pressure gauge drops to zero at idle but jumps back up when I push the skinny pedal. Question Is I'm running 155cc injectors so do I go back with stock hpop or the adrenaline hpop?
Former Vendor
Joined: Feb 2010
Posts: 1,803
Likes: 5
Have an 04 350 from what I have figuard out is that the HPOP ball bearing has gone out, hard start first thing in the morning and oil pressure gauge drops to zero at idle but jumps back up when I push the skinny pedal. Question Is I'm running 155cc injectors so do I go back with stock hpop or the adrenaline hpop?
Hope this helps!
Posting Guru
Joined: Nov 2011
Posts: 1,664
Likes: 4
From: Southern AZ
Have an 04 350 from what I have figuard out is that the HPOP ball bearing has gone out, hard start first thing in the morning and oil pressure gauge drops to zero at idle but jumps back up when I push the skinny pedal. Question Is I'm running 155cc injectors so do I go back with stock hpop or the adrenaline hpop?
Richard
Thread Starter
|
Cross-Country
Joined: Jul 2010
Posts: 96
Likes: 1
From: on the river
Morning, its the late 04. From what I've read there is a ball bearing that pops out of this stile hpop that let's the oil drain out of the top end of the engine. If it was the lpop issue then it wouldn't give the hpop enough oil to fire the injectors.
Posting Guru
Joined: Nov 2011
Posts: 1,664
Likes: 4
From: Southern AZ
If it's a late 04 with the ICP sensor on the passenger valve cover, it's not likely your HPOP. The later one almost never fail.
I would get an oil pressure gauge and check your base oil pressure. You can also pull the oil filter and hold down the drain valve while cranking to see how fast it fills.
Richard
EDT: after they went to the later pump it didn't really change till the end of production. it could also be a leaking STC fitting too. Unless I am getting my dates wrong
I have only really dealt with the later motors.
I would get an oil pressure gauge and check your base oil pressure. You can also pull the oil filter and hold down the drain valve while cranking to see how fast it fills.
Richard
EDT: after they went to the later pump it didn't really change till the end of production. it could also be a leaking STC fitting too. Unless I am getting my dates wrong
I have only really dealt with the later motors.
Thread Starter
|
Cross-Country
Joined: Jul 2010
Posts: 96
Likes: 1
From: on the river
you sir are correct! There is also a ball bearing inside the hpop that fails on these ones I'm guessing that's what it is from what I have tested well find out in a day or two when I take it apart.
Trending Topics
Postmaster
Joined: Aug 2015
Posts: 3,910
Likes: 18
From: NW IA
It's still possible you have an oil rail leaking down, with a hard cold start. Pull the ICP after it's been sitting overnight, if the oil is not right there at the top of the hole it might be the culprit.
This only works for the passenger side obviously. It could be the drivers side as well if this is the issue and would require pulling the valve cover and dummy plug.
Would hate to see you go through all the work of pulling all that stuff topside if not needed.
This only works for the passenger side obviously. It could be the drivers side as well if this is the issue and would require pulling the valve cover and dummy plug.
Would hate to see you go through all the work of pulling all that stuff topside if not needed.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Thread Starter
|
Cross-Country
Joined: Jul 2010
Posts: 96
Likes: 1
From: on the river
It's still possible you have an oil rail leaking down, with a hard cold start. Pull the ICP after it's been sitting overnight, if the oil is not right there at the top of the hole it might be the culprit.
This only works for the passenger side obviously. It could be the drivers side as well if this is the issue and would require pulling the valve cover and dummy plug.
Would hate to see you go through all the work of pulling all that stuff topside if not needed.
This only works for the passenger side obviously. It could be the drivers side as well if this is the issue and would require pulling the valve cover and dummy plug.
Would hate to see you go through all the work of pulling all that stuff topside if not needed.
Fleet Owner
Joined: Nov 2003
Posts: 27,918
Likes: 3,636
What testing did you do that pointed you in the direction of that pressed in ball?
Thread Starter
|
Cross-Country
Joined: Jul 2010
Posts: 96
Likes: 1
From: on the river
ICP off oil still in oil rail, ipr at 85% when cranking icp desired pressure 1100, icp actual pressure 100+ then jumps up to the 1100+ truck fires and then dies next crank ipr 22% and icp 700+ truck fires and runs sits for an hour long crank repeat of above
Fleet Owner
Joined: Nov 2003
Posts: 27,918
Likes: 3,636
Here is a recent thread where a person found the ball had come out. He describes his symptoms. Edit - after re-reading your first post in this thread, it seems more in line w/ the link below than what I got from your post above.
https://www.thedieselstop.com/forums...04/index2.html
https://www.thedieselstop.com/forums...04/index2.html
Hotshot
Joined: Dec 2014
Posts: 17,833
Likes: 3,120
From: Jersey Shore
I’ve never thought much about that part, or more to the point, the ball bearing. I remember reading one company had a pipe plug in that location. Mark, do you have any knowledge of what that part does and why it blows out? I had thought at some point that is was an over pressure plug, designed to pop. But that can’t be true if there is a pipe plug there.
Thread Starter
|
Cross-Country
Joined: Jul 2010
Posts: 96
Likes: 1
From: on the river
Here is a recent thread where a person found the ball had come out. He describes his symptoms. Edit - after re-reading your first post in this thread, it seems more in line w/ the link below than what I got from your post above.
https://www.thedieselstop.com/forums...04/index2.html
https://www.thedieselstop.com/forums...04/index2.html
Fleet Owner
Joined: Nov 2003
Posts: 27,918
Likes: 3,636
I’ve never thought much about that part, or more to the point, the ball bearing. I remember reading one company had a pipe plug in that location. Mark, do you have any knowledge of what that part does and why it blows out? I had thought at some point that is was an over pressure plug, designed to pop. But that can’t be true if there is a pipe plug there.
It was put out in 08 and was where I first saw the discussions on cracked heads (fuel in coolant).
fordstar/66920.wmv
It was a great video on HPO components/issues/diagnostics. I've sometimes wondered if a Tech would be able to access this old training video.