03 Hot no start
Thread Starter
|
Logistics Pro
Joined: Feb 2013
Posts: 4,073
Likes: 5
From: TX
03 Hot no start
Ok--so my buddy with the 03 has sold his truck and I'm gonna get it fixed for him. When I tested the truck for the other friend it tested fine but with one hickup which was a low pressure on crank (380psi) But was just once.. Now the truck is no start hot everytime it is driven now. I tried to get him to unplug the ipr but he couldn't find it--he's not good at fixing things 
I plan on testing the IPR first then do HPOP air test. I'm hoping for IPR or dummy plugs and stand pipes. Any other suggestions on where to start? Oh--I will be validating again some numbers with my scangauge. Thanks in advance
Mike
I plan on testing the IPR first then do HPOP air test. I'm hoping for IPR or dummy plugs and stand pipes. Any other suggestions on where to start? Oh--I will be validating again some numbers with my scangauge. Thanks in advanceMike
Thread Starter
|
Logistics Pro
Joined: Feb 2013
Posts: 4,073
Likes: 5
From: TX
I gotcha--was wondering about that. Should be easier then. Was hoping for him its not hpop but it more than likely is. Now the icp it the big one that has the plunger and the ipr is the shorter squat one? I think I have them switched in my mind
Thread Starter
|
Logistics Pro
Joined: Feb 2013
Posts: 4,073
Likes: 5
From: TX
Gonna start the work today. Want to see if I have my ducks in a row. First check icp koeo ipr when starting. Drive to get up to temp so it wont start hot then check icp and ipr while trying to start. Next unplug icp or ipr (cant remember which) if it starts its bad. If not move to air test. Am I in the right direction?
Certified Thread Hijacker
Joined: Aug 2001
Posts: 14,441
Likes: 60
Gonna start the work today. Want to see if I have my ducks in a row. First check icp koeo ipr when starting. Drive to get up to temp so it wont start hot then check icp and ipr while trying to start. Next unplug icp or ipr (cant remember which) if it starts its bad. If not move to air test. Am I in the right direction?
Doubt that's the issue, most likely is HPOP or HPO discharge tube.
Josh
Trending Topics
Thread Starter
|
Logistics Pro
Joined: Feb 2013
Posts: 4,073
Likes: 5
From: TX
yep--hope just the discharge tube. Finally was able to get on my computer today--and figured out unplug icp and inform myself a bit more. How the heck do you get to it to unplug the dern thing? This 03 isn't fun. Also for doing the air test--where do you plug in on the 03? Do you have to tear down to the hpop and plug into icp or is there an easier port?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
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
Certified Thread Hijacker
Joined: Aug 2001
Posts: 14,441
Likes: 60
yep--hope just the discharge tune. Finally was able to get on my computer today--and figured out unplug icp and inform myself a bit more. How the heck do you get to it to unplug the dern thing? This 03 isn't fun. Also for doing the air test--where do you plug in on the 03? Do you have to tear down to the hpop and plug into icp or is there an easier port?
Josh
Thread Starter
|
Logistics Pro
Joined: Feb 2013
Posts: 4,073
Likes: 5
From: TX
On the air test can you tell if it's the discharge tube or HPOP? Once you get down to the HPOP what is the best way to tell it's bad? Hate to just change some orings, put it back together and find out it needed HPOP. I know he doesn't want to replace HPOP but If it's bad I am going to make him and I want to be sure.
Thread Starter
|
Logistics Pro
Joined: Feb 2013
Posts: 4,073
Likes: 5
From: TX
This meaning it is definitely a HPOP leak?
Thread Starter
|
Logistics Pro
Joined: Feb 2013
Posts: 4,073
Likes: 5
From: TX
My numbers
Cold koeo
Icp volt .17 start 2.0
Ipr 14.4 start 74
Icp psi 0 start 1041
Warmed up
2500rpm
Icp volt 1.61
Ipr 40.1
Icp psi 1579
Wot
Icp volt 4.1
Ipr 66.6
Icp psi 3642
Idle
Icp volt .88
Ipr 23.21
Icp psi 640
Letting it sit for a few as this is when it wont crank.
Cold koeo
Icp volt .17 start 2.0
Ipr 14.4 start 74
Icp psi 0 start 1041
Warmed up
2500rpm
Icp volt 1.61
Ipr 40.1
Icp psi 1579
Wot
Icp volt 4.1
Ipr 66.6
Icp psi 3642
Idle
Icp volt .88
Ipr 23.21
Icp psi 640
Letting it sit for a few as this is when it wont crank.
Hotshot
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
My numbers
Cold koeo
Icp volt .17 start 2.0
Ipr 14.4 start 74
Icp psi 0 start 1041
Warmed up
2500rpm
Icp volt 1.61
Ipr 40.1
Icp psi 1579
Wot
Icp volt 4.1
Ipr 66.6
Icp psi 3642
Idle
Icp volt .88
Ipr 23.21
Icp psi 640
Letting it sit for a few as this is when it wont crank.
Cold koeo
Icp volt .17 start 2.0
Ipr 14.4 start 74
Icp psi 0 start 1041
Warmed up
2500rpm
Icp volt 1.61
Ipr 40.1
Icp psi 1579
Wot
Icp volt 4.1
Ipr 66.6
Icp psi 3642
Idle
Icp volt .88
Ipr 23.21
Icp psi 640
Letting it sit for a few as this is when it wont crank.