HPOP Drained down. Crank, No start.

[@oceanmariner]

I'm a little surprised a diesel shop would buy a huei injector engine. There's a hundred ways they can fail, and you just showed me another one. I got a 7.3 and it's like taking a second job, just to keep it running. I just changed the engine wiring harness and fixed several problems. Currently it's running like new. One of the best truck engines when it runs.

[@bayoudiesel]

One of the big reasons these gals take some attention is that they are all over 20 yrs old and still on the road. That’s a badge that can’t be denied. You go to Ford for 7.3 parts and they are in stock. You have to order 6.0&6.4 parts. If someone doesn’t like um that’s more for us that do. I appreciate the comment and thanks for watchin.

[@OutlawBayouRider]

​@@bayoudieselI couldn't agree more 😎👍

[@BrandonLeech]

They run hundreds of thousands of miles when not monkeyed around with or hot rodded too much. Problem is they’ve almost all been monkeyed with too much at this point so it’s a bitch getting it straightened back out

[@enigmatic_sunn]

really like these videos Im learning my truck well with how you present the functional interplay of all these parts. REALLY good work

[@bayoudiesel]

@@enigmatic_sunn we really enjoy hearing about how our videos help others. Hope you enjoy them and if any questions come up that the videos don’t help with feel free to hit us up. We’ll keep um comin. Appreciate the comment.

[@anteros6927]

Thanks 🙏 for sharing your knowledge

[@bayoudiesel]

You are certainly welcome. Glad to hear when someone get something outta these videos. Weather info or entertainment we alway hope y’all get something outta watching. Thanks for the comment and we will keep um coming

[@DANIELROMERO-cv3tu]

Great video I have 1999 F350 7.3L powerstroke dally. I haven’t had any problems other than a water pump and hoses . They are great engines. I do have a question does my truck have fuel pick up strainers in the tank?

[@bayoudiesel]

@@DANIELROMERO-cv3tu it should have the screens unless someone removed them and did something like the hutch mod. I have a few videos on this if ya need.

[@57bagre]

I appreciate the video as for me, an old school car mechanic from back in the carburetor, points and condensor days then welder and truck driver for the last 35 plus years after leaving car repair. Now I have a 2003 6.0 I bought last year and had no idea that it would be at least 10 times more complicated than my 60 series Detroit. Now I have to learn a new language and study hundreds of hours of YT videos to feel safe driving this 6.0 so as when, not if but when it fails, I will have some idea where to look because I don't trust any shops to work on my stuff. Can you recommend a user friendly scanner that I should buy, I have a couple code readers, 1 simple codes only and another I think I paid about $300 or so that I bought for bleeding abs. I like your topside creeper, I need to get one.

[@bayoudiesel]

@@57bagre the top side creeper is a must and they are not that expensive. As for scan tools I use an older genesis scanner I picked up from a friend who was updating. Since these trucks are all 20 yrs old it doesn’t have to be a new one. Several viewers use forscan as a programmer and scan tool. As for what’s good in newer scan tools I’m really not that up to speed. I do know that at here are several that will blue Tooth connect to your phone or pad. I would just check to insure they provide live data and diagnostics as well as the code functions. There are a few groups on face book that you could ask they may have more info. Appreciate the comment and thanks for watchin

[@57bagre]

@@bayoudiesel Thanks for the reply sir.

[@ronaldlemons2836]

The reservoir is full and batteries are full charge

[@bartekwitas9500]

Kind of off subject but I’m having an electrical issue where #1 injector isn’t firing, only a tiny bit of oil coming out of deflector. Checked all wiring, swapped idm, new set of injectors and issue is still here. What am I missing ? Any help would be appreciated

[@bayoudiesel]

Check out my response in your other comment. Thanks

[@RobertSybert]

yes i have a 1995 f250 7.3l and i have crank but no start as well but i deleted everything on valley and have CNC with new hard lines new stage 1 turbo have all new lines for fuel and have Martys E fuel and have a 38 gallon where the spare tire is with a sump kit and still no start everthing is new on valley old parts are taking off its open i do have a New IPR and ICP when i get home and also changing the HPOP as well and i have a new computer and still no start, but like i said im putting in the Hpop and IPR and ICP when i get home in 2 weeks so what is your thought. and thanks for the info on your video it will help.

[@bayoudiesel]

@@RobertSybert sounds like you’re getting deep into this one. Let me hit ya with a few questions. Any codes? Are batteries fully charged? Is the oil level full? On stick and in hpop res? Are you getting a tach reading when cranking? Shown on gage or better yet a scan tool? Do ya have a scan tool that shows live data? And finally, when cranking are ya getting any white smoke? Hit me back and we can start there. Thanks for the question. Happy to see if we can help

[@RobertSybert]

yes it only have a battery light come on on the dash nothing else new batterys and starter new everything but no wait to start light

[@michaelhartter2123]

@@RobertSybertcheck your fuses sometimes one blows and won’t let your relay work

[@ronaldlemons2836]

i have a 01 7.3, the3se are the things ive done to it, new hpop,new fuel bowl new ipr,new icp, fuel tank mod upper wiring harness new oem inrail fuel pump new valve cover gaskets,new cam sensor, new fuel pedal map sensor ehaust sensor... truck cranks no start, 70 psi at fuel bowl,

[@bayoudiesel]

Do you have a scan tool that will show live data by chance? Are you getting white smoke while cranking? Is she popping while cranking or just spinning?

[@ronaldlemons2836]

No popping no white smoke scan tool says icp and its a oem new one

[@bayoudiesel]

@@ronaldlemons2836 is the scan tool indicating a bad icp or icp pressure out of spec?

[@ronaldlemons2836]

With the icp plugged in im reading 380 with it unplugged it reads 2200 while cranking,this is with a new hpop i understand that it takes 500 psi to start why does it have 2200 psi unplugged and 380 plugged in?

[@bayoudiesel]

@@ronaldlemons2836 when the pcm can’t get a good reading from the icp you can unplug it which will lie to the pcm and give it made up values to make it run. It does need to see higher than 520psi before the pcm will allow the injectors to pulse. 2200 is usual right when she would start to crank off. If you are still getting a no start with icp unplugged then that may not be your issue. Sense no smoke is visible while cranking it seems something is not allowing fuel. Could be an hpop oil issue, could be a cps issue, or fuel issue.

[@bigworm0891]

I bet my hpop is dry as a bone too! Can’t wait to check it

[@bayoudiesel]

It happens. I have had to refill hpop res 2-3 times after working on a truck. Depending on the job. Empty oil galleys can eat up what’s in the res quickly. Also, you can fill the oil galleys themselves if needed to not use the res oil

[@forrestmiller2011]

What scanner are you using. I have tried several from the parts store and none will read ipc or ipr let alone live data.

[@bayoudiesel]

Cheaper scanners won’t usually read live data. The one I have is an old Genesis scanner. It works well with these trucks. Some of the really new scanners have trouble also. Because these trucks came out early in the OBD 2 era. Fore Scan seems to work well from what I hear. I don’t have very much experience with it tho.

[@tracyrichardson9606]

@@bayoudiesel Do you know what model your scanner is? I would like to see if I could find one like it.

[@bayoudiesel]

Mine is an older genesis scanner. The parts stores don’t sell commercial grade scan tools. They can pull codes and do simple checks but not live data and diagnostic functions. These trucks are all 20 years old so you could do what I did and pick up one that a mechanic is getting rid of to upgrade to a newer device.

[@tjdicks3987]

I got a laptop and the forscan software, works perfect

[@forrestmiller2011]

@@tjdicks3987 thank you so much. What OBD2 adapter did you buy? I was told some knock off adapters will not run all the diagnostics that the app will do. Not sure what brand to order that will work. I am down to checking hpop pressure and idm. Thanks again

[@ronaldlemons2836]

Evenin I got the 7.3 started,i swapped the solenoid from 1 ipr to another and put a icp in it started and took awhile to run right but idled fine,test drove it and ran fine but…. When i turned it off and maybe 10 min later it starts and dies till i randomly put my foot on the fuel Pedal and it fired up now i know there is no cable on it and my fuel pedal is relatively nee and dont have a removable throttle post sensor. Got any ideas?

[@bayoudiesel]

Were you able to put some drive time on it? Usually take about 40 plus miles of driving at different speeds to burp all the air out of the system and get them to run right again

[@ronaldlemons2836]

So driving it will help with it not firing up after its warm? It so wierd that i can push the pedal down a little and it fires up

[@ronaldlemons2836]

Let me start over,after installing the hpop it started and ran but at idle it idled higher than before and after drivin it whe id try to start it would start and die so i put a oem ipr and a oem icp and it started good so last week i was drivin it and it died i towed it home and it cranks and no start,70 psi at fuel bowl scan tool shows 380 to icp and ipr 65% i sprayed startin fluid it starts and dies and i replaced cpm also it has a new 40,000 volt pcm but agin just cranks no start.

[@bayoudiesel]

Based on that info I’m leaning towards hpop. 380 psi on icp won’t let injectors pop. As for the ipr %, at idol 9-12ish. 65% is max closed off bringing max hpop psi. Which should be in the 3000psi range. Under normal operation you will not usually see ipr opening more than the upper 30%. When it’s going to 65 (full closed) or more it is having trouble building pressure. Could be an hpop leak, air in the hpop system, or hpop reservoir empty. These symptoms will not allow pulsing of injectors so no fuel getting to the engine. Which is why she will run on either but when you stop spraying there is no fuel.

[@ronaldlemons2836]

@@bayoudiesel So a new hpop can be bad??

[@bayoudiesel]

@@ronaldlemons2836 I run into brand new parts that don’t work at least a few times a month. I came in from a hotshot run in my 450 with 4 non working cps sensors on the floor. All bought that night on one run. Is the hpop reservoir full and staying full? Fully charged batteries?

[@bayoudiesel]

Also when you open up the hpop oil system to change the pump,lines or injectors air gets into that system. It can take around 45 miles or so driving to burp that system and clear all the air out thus beginning to run right again.

[@ronaldlemons2836]

@@bayoudiesel i checked the reservoir and its full, i just cant believe the new hpop could be bad ive changed several ipr and icp,s i have a tool box full of them, and i ordered another ipr from ford as i said before it has anew wirirng harness and fuel bowl OEM,i guess the next thing is to dead head the hpop

[@ronaldlemons2836]

The plug in for the icp has 3 pins how many volts should be at that plug with key on

[@bayoudiesel]

5volt reference if I remember correctly

[@cowboy41231]

Also The "signal" wire should have 0.25v +/- with KOEO

[@ronaldlemons2836]

So i installed a new wiring harness,so there is a chance the new harness could have issues??

[@bayoudiesel]

@@ronaldlemons2836 always a chance of that these days. Can you refresh my memory on what you are fighting and the symptoms? There has been a lot of water under the bridge sense this discussion started. Thansk

[@ronaldlemons2836]

@@bayoudiesel Yessir Its long list,but it started with the truck having no power,so i dropped the tank and did a hutch mod and a frame mounted filter,new oem fuel pump,new fuel bowl new oem ipr,icp,hpop,exhaust sensor and tube,rebuilt 40,000 volt pcm new fuel pedal new wiring harness new valve cover gaskets, so i got it runnin and it had great power,the reason i threw new parts was i bought it with 207k and thot id update so 2 wks ago im drivin and i feel it loose power and what i mean is when id take off it would take off fine but the more i pushed the pedal it just wouldnt go and when lettin up on pedal it would miss like blahblah blah then level out, the fuel pressure is 70 psi at the bowl🙈🤷‍♂️

[@TowMan127]

Just subscribed

[@bayoudiesel]

@@TowMan127 thanks for the sub. We enjoy hearing for all the viewers and look forward to hearing from you. Appreciate the comment and we’ll keep um coming.

[@TowMan127]

@@bayoudiesel 🤜🤛 just bought a 00 Ford F550 wrecker with a 7.3 so I’ll be watching a bunch of videos.

[@bayoudiesel]

@@TowMan127 feel free to hit me up if you have any 7.3 questions. We like helping people keep these ole gals on the road.

[@TowMan127]

@@bayoudiesel thanks, appreciate that. I love my new to me wrecker. I’ve always loved the 03 I used to operate and now I have my own so it’s exciting

[@bayoudiesel]

@@TowMan127 I build a winch truck out of an f450. Love hearing those twin stacks purr. Enjoy your rig

[@ronaldlemons2836]

The hpop is new

[@ronaldlemons2836]

I replaced the cpm yesterday

[@Justmekpc]

The oil is always cycling in the hpop if you have problems starting it’s probably the low pressure oil pump Changing that oil does nothing it’s just an internet myth

[@bayoudiesel]

@@Justmekpc agreed on changing that res oil unless you have a sludge issue. This one occasionally with give a funny start due to the check ball in the timing cover leaking the res oil down after she sits for a few days.

[@kirkbenefiel8920]

Yea i got a 97 450 and it sounds just like yoursand doesnt run just like yours lol.

[@bayoudiesel]

@@kirkbenefiel8920 is yours loosing hpop oil in the reservoir?

[@tiffanynguyen2114]

2:12