Thanks for the video. I am a visual learner and this is the first time someone explained it this well.

That explanation was the easiest to understand I've seen on this entire site. THANK YOU STEVEN, SINCERELY.

Nice cut-a-way. Thanks for the visual!

This is what KZfaq is for.. I’m a firm believer that if you have an extensive knowledge on a particular subject, it’s your responsibility to share that knowledge and pass it on to future generations .. diesel tech Ron is a perfect example, he may be dead and gone, but his knowledge on Diesel engines isn’t lost with his death , and he continues to educate people about issues with these engine even after he’s gone .. the main reason you make these videos to help guys like is .. sure you may make a few bucks off the videos, but life isn’t free , and at least the money isn’t coming out of our pockets .. much love and appreciation man, I just bought a 96 f350 , and your videos are going to help me out immensely , thank you brother 🙏

I learned more from your 20 minute, very descriptive, very informative, color coded video than I have ever learned elsewhere....thanks for the cutaway...

Very very helpful. Going through my first 7.3 right now. Everything I am don’t to it is more reliability based, so not building a race truck. I really wanted to see the internals because I kinda knew how it looks inside there - but this is definitive and very helpful.

This is the first video that I've seen on how a powerstroke works on the inside of a cylinder very impressed definitely a visual learner here. I've definitely learned stuff I probably won't learn anywhere else or it would take me a long time to.

Greatest video ever on 7.3 head. Awesome. Thanks so much for sharing this with us.

Super awesome of you to have done this for all of us....Thank you!

You're a great teacher and a wealth of knowledge. I was just looking for "cranking no start" trouble shooting info for my 7.3 but stuck around for this whole video just bc of you cut and dang head open, painted the thing and then articulated all kinds of 7.3 wisdom, all good like. Keep up the good work. Thanks

Thanks for making these videos - always nice to get good 7.3 info.

So Steven/ Mr Cox whatever 🤔, Just wanted to say you've helped me a lot with your videos. I've Worked construction most of my life have a CDL and therefore driven a lot of deasles but in the last year bought my first I can call my own (02, 7.3) I've tinkered with gass engines to the point others consider me a decent mechanic (others, as far as I'mconcerned"I'm just a monkey with a wrench that scores a banana here and there") I haven't torn down and rebuilt an engine yet. So how you walk us through your view of the projects you post really helps me out so thanks!!! Best wishes Jim

Its always great to be able to put your hands on stuff to learn about it...in this case your eyes. Thanks sooo much for the great video...I wasnt aware about the injector cups cracking as you showed. Thanks again!!

Your a nut. You crack me up the way you look at the camera and explaining this with humor sarcasm but very helpful

I have a 99 7.3 with 300k miles. Runs perfect, doesn't use or blacken oil. All original. So thanks for putting worries into my brain about problems that probably don't exist!

Thanks Stephane, now I have a much better understanding how my 7.3 works

Great video and excellent job with the cut away. Best I have seen. I turned the engine over by hand to get what little bit of oil I had in cylinders when I did my cups. Thanks

Another great video, thank you sir. Keep them coming please

Hands down your video's are the best for 7.3 thank you again an again

Good video. lots of info and help understanding 7.3 cylinder heads

Great video for sure! I overheated my 7.3, developed a bad knock. All injectors check out ok, I pulled them and found most of the lower o rings toasted and shriveled up. New o rings, went to clear the cylinders of oil and fuel before putting injectors in... found coolant in a few of the cylinders. I immediately suspected cracked injector cups. Well - this video explained precisely what the heck happened in there. Time to order an injector cup set! Thanks man.

Just now finding this awesome video on the 7.3. 👍👍👍👍👍 Wish you were on the west coast so you could service my 7.3! Thanks for the instructional video.

Thanks Stephen, best video and explanation on cross-section of the head and what's going on.

YOU DID SAY...Some people are visual..I am!!👍🏻👀. Great idea cutting engine and show it to us. Now I better do all the job complete. THANKS A LOT!!!!

Very nice video actually taking time to show and explain everything

One of the best video on KZfaq about 7.3L. Great job

Great video man! Awesome detail!

Great video and explanation of the operation.

@stephen cox awesome job brother! I subscribed and ticked the bell!!! Im in need of injectors but im not sure which brand to go with. I want to install some slightly over stock but I don't want to go to single shot injectors.

Great video, thanks man. Appreciate it from Australia

Very informational video My 2000 7.3 has 405 thousand miles on it and I've never done anything under the valve covers so I'm curious what the condition of my injectors and stuff are

Imagine two 1969 L-88 engine cut away’s that is the Corvette 427 CID... one was cut up in Saginaw Michigan at the tech school for auto mechanic and skilled trades, the other was done by students who attended SWOVCC South- West Oakland (County in Michigan very close to Detroit, Walled Lake actually) Vocational Career Center. Another of theses donated engines from GM was in my Auto Shop at Farmington High School, I was a VOC Auto III Independent Study student... Fall of 1986 Open House was the last time that the Engine was Started by me it had the original 4bbl carb and air cleaner cover with “455 HP” on top... the fact that that beast put out more than 560 HP and was Stock in the late 60’s makes me shake my head... the label and De-Tuning was done to reduce auto insurance cost for the purchasing public... so GM Fudged some Numbers, no surprise... but since then and since the 70’s EPA mandating cleaner Air our fuel standards went down and oil companies purchased as many patients for fuel Economy technology that has crippled our industry from 100 MPG cars!!! It’s kind of funny but not to hear an NPR (National Public Radio) show Hoasted by IRA GLASS, of all the technology that was available in the 70’s that Disappeared and was only subject of rumor mill and disbelief... one of those stories hit close to me growing up... a friend who’s Dad worked for GM, and he had a 50 MPG carburetor that would work on a V-8. I wanna describe it, but he was hit with a lawsuit when we were in HIgh School. Caused quite a hardship for him and their family...

THANK YOU for this video! Great cut away! I appreciate the explanation and detailed instructions on what to look for and what to check for and change. Example = I would have only changed out the one cracked injector cup.

Thanks Stephen. Very informative!

Had NO idea about the injector cups...now I am sensing a new set in the near future. (along with the 'new' injectors)

Beautiful video !!! Great work

Thanks for the cutaway. Really well explained video

Thanks for the explanation. That's awesome. I have been looking for a video on how cylinders works. Could you do a video with visuals on common oil leaks on the 7.3? I have a leak that drains about a gallon a week that I have thusfar been unable to pinpoint the source.

amazing vid thanks Stephen!

This video was awesome. Learned a lot from this.

Yep thanks for that visual video and also when your a owner of a diesel truck eventually a part will break and they becomes expensive I recently replaced my fuel sending unit on my 7.3l and cheapest sending unit I could find was $480 then got to find the time installing it. But anyhow thanks for your video.

Do you take it easy and you have a good day? 🤪 hey Clint. Thank you for putting out your videos about the 7.3.

I'm a visual learner... thanks for the video from Georgetown TX.

Very helpful. Thanks again!

Thanks for the informational video!

Great video mate....

My 7.3 is the old stroke. 1994 I.D.I. Turbo. Lately getting diesel fuel into the oil pan. Seems I am looking at pulling the injectors and installing new seals "Oil Seals" I sure like the way you explained that cut away cylinder head with color codes sure help me understand more even though your model is direct injection while motor is indirect injection but still leaning on a worn out seal. Not sure about them cups never been that far down before on this old stroke. Got 300K on the engine but the trans only seem to barely make 100K each as it seems the turbo indirect design has too much pony for the old Ford ED04. Kinda wish it was a 5 speed manual on the F350 4x4 6 pack long bed truck. The old stroke uses less pressure but the seals are important and so is holding down the fuel delivery line as I learned at higher rpm that can rattle loose then breaking a line finally figured out to tame them lines with proper rubber mounting and clamps that someone took off the engine before I bought big blue way back in 2005 for 8K. Thanks for putting up all the videos over the years I do watch them and enjoy them and sometimes I get out a fix something!

Thank you for your knowledge. It helps so much. What happens when you have a bad cup. How will you know for sure without pulling them out?

extremely helpful man! thank you! 🙏🏻

Great video thank you for the insights !

Love all the extra information good to know Excellent!!!!

This was awesome. Thank you.

Great video!! Thanks!

Nice video by the way very helpful

Your thoughts in replacing 7.3 injector cups with stainless steel cups. Thanks Ruben

Just exactly the video I was looking for.

Love the video very helpful advice

Great stuff bud!

Awesome info man

Thanks man. This was right up my alley man. Lol You shoulda' seen the color coded hydraulic component theory of operation schematic instructional 4x8 white boards with actual components for the CH-53...

Awesome job!

Great explanation. The visual really helps a lot. What’s a symptom of cracked injector cups?

Wow! Thanks Brother! Great video!!

Great videos thnx. Do you have a video reseating piston rings. Thnx again

Thank You for the info.. I've worked on my 7.3 and im sure ill be working more 😂🙏👍😎

It would be awesome if you did a vid like this with the hpop for a 7.3

The question is in reguards to a 7.3l that is filling a cylinder with coolant and mixing coolant with oil. Im leaning to the head gadket. But my friend got info saying the cup can cause both issues

I been building two 7.3s for my 2000 F350, for two years... I put in a reman with 38k on it that I got at an auction. It was in a state maintenance vehicle ... It has a problem with cylinder 2, 3 and 8 .... Brand new injectors with EBPV deleted... When I accelerate it, ALL cylinders fire very well, but I still feel a slight thump, thumping in the firing... So... that led me to start rebuilding my original 7.3, which I am in the tear down stage of right now ... Even though I know the systems EXTREMELY well ... I have never seen the detail surrounding the cups ... Now I will know what I am looking at when I rebuild my heads for the first time ... Are the new stainless steel cups worth installing? Or stick with the brass? And is there better brass cups that hold up longer? Thanks for cutting that head open.. really interesting.

Thank you for your help

7.3 info while wearing a demo ranch shirt. My man!

great video people like me who have to see it to learn it so thank you man!

well done visual.

Very helpful thank you!!

excelent video!

7.3 and 6.0 injectors are not the same, they don't even resemble each other the 6.0 injector is a much physically smaller injector compared to the old 7.3 injector. 00-03 7.3 injectors flow 145cc and are a split shot design. The 6.0 injectors flow 135cc and can fire up too 5-7 times during the powerstroke, a much more high tech design. Great video though, thank you for elaborating the glow plug and injector misconceptions.

Great Content! Thankyou!

Awesome video

Thank you so much

Will a cracked injector cup allow coolant to enter into the crankcase oil? Thanks in advance. Very knowledgeable video.

Good job 👍

Nice video I have a question I have 7.3 diesel the oil is being pumped in the fuel tank I replace all the sleeve and all the o ring and 5 injector still have the same problem. Please help

very nice job.

I'm doing a reseal on my 2000 7.3l HPOP, will you show a video on the INTERIOR of the ports you add o rings. I have 2 components that came out. I'm sure one is from the check ball port, but not sure which way it goes in. The other I have no idea where it came from. Help please and Thank you. Love your videos.

What would you estimate a new set of injectors installed in 99 7.3 run rough guess?

Very helpful thanks

Awesome Man!

You're amazing man. I've learned so much watching your videos thanks mannn. Kinda sucks because I have a 7.3 lbs so by the look it's a bit different. I know the fuel pump is in the engine valley vs superduty 7.3 is under the driver side. Do you have Instagram? Would you point me in the right direction If I sent you a message ? Thanks man keep winning!!!

Cool video

How do you feel about stainless injector cups? It wouldn't dissipate as well but they wouldn't crack so easy

Any update on a rebuild kit you would recommend? Can worn out injectors cause a lot of smoke when idling. Calms a bit when engine gets warmed up. While warming it smokes white in a good amount. 2000 7.3L Just bought, last owner had it for 10 years, never did anything major to the engine. Wonder where I should start? Loss of power is definitely there. Very sluggish

great video quick question I have issues with my injectors. I rebuild my injectors and installed them back. when running ot started throwing white smoke. I removed the Injectors and installed new cups. truck is still throwing white smoke and throwing pressure from the resivor. how would I know if it has a blown head gasket or bad injectors caps please help

Hey bro got a 7.3 had a clogged strainer had it cleaned out and after starting the truck at idle and light revving it started pinging like hell I got a strong feeling it might be a bent push rod or rocker arm

Awsome video

They sell stainless steel injector cups. I realize stianless is less thermally conductive, but they are touted as an upgrade. Would you recommend them?

So where do I get that 7.3 with 7 cylinders?

Thank you sir

Thank you

Have you ever changed motor mounts in truck without pulling the engine do you have a video of this please help

Does the starting/ glow plug thing also count for the idis

Where can you have your injectors rebuilt? Or is it something I can do at home?