I'm actually waiting for valve cover gaskets lol. I rebuilt a set of injectors out of a early 99. Pulled the barrels/plungers to make them a single shot, and added new intensifier pistons to make a sweet set 180cc injectors to replace my 90cc! My gaskets fell apart when I took the covers off.. I'm pretty sure in the 300k miles of service my F350 has seen no one's taken them off before. Love the 7.3 vids! I definitely like working on my ol' trusty 7.3 over my Ranger w/ a 4d55t diesel, you can still get parts for the 7.3😂
It seems simple enough, but what i actually appreciated most in this video is how to disconnect the harness. Ive accidentally broken so many of these over the years. Yet its its something very often ignored in this type of video. Thank you.
I am replacing both valve gaskets and wiring harness on my 99 F250 Super Duty. I cut a plug off of the old harness for the injectors and stripped some wire back so I could use it to test resistance on the injectors easy with the harness removed. After I make the connections and before I put valve covers back on I will do a buzz test with a old Autoengunity program.
@@vladmirputin7139 Hey Vlad, use your brain IF you have one, the search engine is your friend, but you are obviously limited and probably don’t have friends. Grow up!
@@LostInPhilly89 It was only an attempt at humor, like they got the drivers sides mixed up because they drive on the other side of the road over there? No full size Fords tho? Too bad, those are great pickups.
Yes i just bought a 1995 f250 7.3l my first time having one so im going to be replacing a lot it only has 154,000 miles on it and its pretty rusty up under the cab and it wasn't running at all so thanks for sharing the video and what i need to look for when i do start it up that actually helps when i get it started lol.
Thank you for taking the time to produce the videos that you have. It is nice to see a step-by-step process before hand and before attempting (when it is not your profession but a hobby). Is there a video on actually removing everything to get to the vc’s?
I haven't ever had a gasket issue. Two more common problems with the 99-03 7.3: one is the driver side wiring harness grounding due to wire insulation wear on the driver side valve cover; second is a defective Hall Effect cam possition sensor. Always check the underside of the harness, disconnect and turn over.
Will it grounding out cause issues with turning signals suddenly just...not working? Not blowing...like they arent there. Also, noticed the steering wheel column will ding even when the key is out and it dings outta the blue. Have to manipulate it up n down to get it to stop.
due both sides usually go together my driver side went that's why I'm asking, my motor runs good just don't know if should just change the passage side as preventative.
I have a question that I hope you can answer. I have a 1995 7.3 Powerstroke that uses the two glowplug/fuel injector connectors per valve cover gasket, two on the passenger and two on the driver's side. I have replaced the engine wiring harness four or five times and each of the valve cover gaskets and the under-the-valve cover wiring harness seven or eight times along with the glow plug relays. Now I have over 420,000 miles on this engine so this has been spread out over the 28 years I've owned the truck. I currently need to replace all of these harnesses again including the engine harness. Would I be better off adapting or going to the single valve cover connector like the one in this video? Is that single connector a better more reliable durable design than the two-connector harness? Would you recommend using a heavier gauge wire for the glowplug circuits if I rebuild the engine harness? Those are the connections that always burn up and fail. I would use straight wire runs instead of using a pigtail and having solder joints.
Can you use the 98 to 03 valve cover harness assembly on a 95? Will it match up? I know you have to extend the wiring from the front two plugs, but would it work better? My 95 keeps melting the glow plugs to the injectors in the connectors?
As I was putting the connectors back over the glow plugs I was have a really hard time getting them to fit snug. One of which stretched out and will not fit snug. Can someone please tell me if I'm going to have to purchase another wire harness?
So i am doing the valve cover caskets on my 03 7.3, as well as the internal wiring harness. After doing some research i found out that the internal wiring harness is common for coming unplugged during use. So Ford came out with a retaining clip for the harness to help keep it plugged in. i purchased some of these to install during replacement. but i cannot for the life of me figure out how they go in. Any advice? part number on the clips is 1C3Z-14A163-AA.. Thank you!
Could be a couple of different things. Really want to do a cylinder contribution and buzz test as well (provided it is a 7.3). Check fuel pressure and make sure glow plugs are working.
My truck cranks and runs good. Reving it almost has hard to notice miss above 2000 rpm. Runs good going down road until about 7 minutes and then it sounds like it looses fuel pressure or some injectors quit firing. Let it sit for a while. Cranks back up and does same thing again. Sometimes not. Fuel bowl is full when I pull filter. Might be valve cover wiring harness? Or wires from firewall driver side going to valve cover area? Truck bought new by me on 2000. 150k miles. Has a tool bed.
Hey man I have a 97 obs and It’s running so rough. I removed my valve covers today and unplugged one by one. And noticed #4 and #5 don’t do anything when unplugged. The other ones cause the truck to surge. I did the buss test and they all passed. But injector number 5 is squirting so much oil and it’s all splashing on the glowplug. The other #4 isn’t squirting at all. What could my issue be ? Also I’m guessing #5 has bad o rings
I recently changed mine on a 97 7.3 now mine won't go over 30 mph without stalling and missing also shakes bad at idle could it be a bad value cover/harness?
Being that this an informational video please use correct terms. Don't call an engine a motor..... I understand that the general public thinks they're the same. Any mechanic should feel stupid calling a fuel burning engine that makes it's own power internally via combustion a motor which relies on an outside source i.e. electricity to make its power.
Being that this is an informational video, how bout no..... Calling it an engine over a motor has absolutely no change in the context of this video other than to satisfy what seems to be a pet peeve of yours.
@@thoroughbreddiesel I'm talking about facts though sir. As a company people look to for guidance and information you should provide correct information. Any video, any conversation and always an engine is an engine and a motor is a motor.
Charlie please don’t call this an informational video... It’s an educational how to video! You better not watch any more of their educational videos! Obviously they have flawed educational material! 😂
An engine is a motor, but a motor isn't an engine. Motor is defined as any of various power units that develop energy or impart motion such as a small compact engine, a gasoline engine, or a rotating machine that transforms electrical energy into mechanical energy. In fact, it would be more accurate to call a diesel a motor since it uses a turbo to recapture energy from the exhaust.
I'm actually waiting for valve cover gaskets lol. I rebuilt a set of injectors out of a early 99. Pulled the barrels/plungers to make them a single shot, and added new intensifier pistons to make a sweet set 180cc injectors to replace my 90cc! My gaskets fell apart when I took the covers off.. I'm pretty sure in the 300k miles of service my F350 has seen no one's taken them off before. Love the 7.3 vids! I definitely like working on my ol' trusty 7.3 over my Ranger w/ a 4d55t diesel, you can still get parts for the 7.3😂
Kkl
It seems simple enough, but what i actually appreciated most in this video is how to disconnect the harness. Ive accidentally broken so many of these over the years. Yet its its something very often ignored in this type of video. Thank you.
You're welcome!
You guys have a great common sense way of showing how to do what ever you are replacing. Thanks.
That is some great filming of his hands and arms.
Are you requesting to see more of Wade’s face? Because that would definitely boost his confidence if you were.
I am replacing both valve gaskets and wiring harness on my 99 F250 Super Duty. I cut a plug off of the old harness for the injectors and stripped some wire back so I could use it to test resistance on the injectors easy with the harness removed. After I make the connections and before I put valve covers back on I will do a buzz test with a old Autoengunity program.
Alliant Power is the OEM supplier for Navistar/Ford
Where is the video on taking the valve cover off?
We do not have one yet.
@@thoroughbreddiesel Then why'd you say you had one lol
@@vladmirputin7139 Hey Vlad, use your brain IF you have one, the search engine is your friend, but you are obviously limited and probably don’t have friends. Grow up!
4 years later? still no removal video huh?
Looks like the drivers side to me, not the passenger side!!
yup!! thats what I noticed!!!!
It must be an export model with Right Hand Drive. ;)
They in England maybe?
@@briand6671 Ford doesn't sell their full size pickups in Europe.
@@LostInPhilly89 It was only an attempt at humor, like they got the drivers sides mixed up because they drive on the other side of the road over there? No full size Fords tho? Too bad, those are great pickups.
Yes i just bought a 1995 f250 7.3l my first time having one so im going to be replacing a lot it only has 154,000 miles on it and its pretty rusty up under the cab and it wasn't running at all so thanks for sharing the video and what i need to look for when i do start it up that actually helps when i get it started lol.
I wanna see you do the passenger side man
is there a valve cover removal video? there was not one linked in the description. thank you you guys are awesome!
10 13mm bolts and it comes right off
Very informative video. I will subscribe.
So, do you have a video on the electrical testing values we should see for the wires on the Volt/Ohm meter?
Thank you for taking the time to produce the videos that you have. It is nice to see a step-by-step process before hand and before attempting (when it is not your profession but a hobby). Is there a video on actually removing everything to get to the vc’s?
No but that is a good idea and a video that we have planned for the future. Thank you for watching!
@@thoroughbreddiesel Get-er-done!!!!
Another great video, guys. Thanks
Thanks! We try lol.
I haven't ever had a gasket issue. Two more common problems with the 99-03 7.3: one is the driver side wiring harness grounding due to wire insulation wear on the driver side valve cover; second is a defective Hall Effect cam possition sensor.
Always check the underside of the harness, disconnect and turn over.
Will it grounding out cause issues with turning signals suddenly just...not working? Not blowing...like they arent there. Also, noticed the steering wheel column will ding even when the key is out and it dings outta the blue. Have to manipulate it up n down to get it to stop.
@@HoneyRowland I believe it is limited to the engine only. I am not 100 percent sure.
Where is the link to the valve cover removal
We do not have one yet.
no need to keep that engine hoist attachment on the motor only make things harder but thank you for the video very helpful.
Thank you for a great video
You're welcome!
Ummmm the side you are showing is the Driver side, LEFT side
Cut a 25 cent at his head and insert in the underside connection to prevent from disconnecting
you can thank Diesel Tech Ron for THAT one.....RIP.......
Where is the valve cover video????????????????????????????????????????????
It would be nice to see what has to come off to get to these things...!!!
due both sides usually go together my driver side went that's why I'm asking, my motor runs good just don't know if should just change the passage side as preventative.
Does the passenger side use the same valve cover gasket and internal harness as the driver side?
Yes.
Do you not use any sealant? On the gaskets, for oil leaks or possible oil leaks?
The gasket isn't designed to be used with sealant.
Just so you know for the future, you were working on the driver's side, not the passenger side. ;-)
This is the kind of light hearted jibbing we’re here for!
@@thoroughbreddiesel Glad you took it as intended. I was going....wow, wait am I turned around?
I have a question that I hope you can answer. I have a 1995 7.3 Powerstroke that uses the two glowplug/fuel injector connectors per valve cover gasket, two on the passenger and two on the driver's side. I have replaced the engine wiring harness four or five times and each of the valve cover gaskets and the under-the-valve cover wiring harness seven or eight times along with the glow plug relays. Now I have over 420,000 miles on this engine so this has been spread out over the 28 years I've owned the truck. I currently need to replace all of these harnesses again including the engine harness. Would I be better off adapting or going to the single valve cover connector like the one in this video? Is that single connector a better more reliable durable design than the two-connector harness? Would you recommend using a heavier gauge wire for the glowplug circuits if I rebuild the engine harness? Those are the connections that always burn up and fail. I would use straight wire runs instead of using a pigtail and having solder joints.
I don’t think you can convert to a Super Duty harness, it requires PCM and IDM swap. The OBS harness is just a bad design.
Can you use the 98 to 03 valve cover harness assembly on a 95? Will it match up? I know you have to extend the wiring from the front two plugs, but would it work better? My 95 keeps melting the glow plugs to the injectors in the connectors?
great information.....but could you now make a video without your hands in the way of everything you're doing?......
I went cheap on my wiring harness and it was cracked in multiple spots less than 2 months after I installed it.
Did a buzz test and got no buzz would this cause that ?? My truck won’t start cranks but won’t start
As I was putting the connectors back over the glow plugs I was have a really hard time getting them to fit snug. One of which stretched out and will not fit snug. Can someone please tell me if I'm going to have to purchase another wire harness?
If they aren’t making good connection replace the harness. If you don’t, you could have a short to ground that will cause havoc.
So i am doing the valve cover caskets on my 03 7.3, as well as the internal wiring harness. After doing some research i found out that the internal wiring harness is common for coming unplugged during use. So Ford came out with a retaining clip for the harness to help keep it plugged in. i purchased some of these to install during replacement. but i cannot for the life of me figure out how they go in. Any advice? part number on the clips is 1C3Z-14A163-AA.. Thank you!
I think the clip just slides in there to keep the clip tight. Some use a grinder to grind down quarter to hold the existing clip in place
I am not familiar with it either, maybe someone will jump in here that has experience with the clip.
Great video, thank you! Is there a recommended tightening sequence for the valve cover bolts?
Thanks! I start in the middle and tighten in a circle like torqueing a cylinder head.
Do you guys sell eng wiring harness 97 7.3
Give us a call at 866-380-3068.
What's the torque specs and pattern for the valve cover
My truck is doing something weird,It misfires in the morning but it goes away after like 10 -15 mins of driving. What could that be?
Could be a couple of different things. Really want to do a cylinder contribution and buzz test as well (provided it is a 7.3). Check fuel pressure and make sure glow plugs are working.
My truck cranks and runs good. Reving it almost has hard to notice miss above 2000 rpm. Runs good going down road until about 7 minutes and then it sounds like it looses fuel pressure or some injectors quit firing. Let it sit for a while. Cranks back up and does same thing again. Sometimes not. Fuel bowl is full when I pull filter. Might be valve cover wiring harness? Or wires from firewall driver side going to valve cover area? Truck bought new by me on 2000. 150k miles. Has a tool bed.
2:08
Did you mean the driver's side...?
I probably misspoke.
Hey man I have a 97 obs and It’s running so rough. I removed my valve covers today and unplugged one by one. And noticed #4 and #5 don’t do anything when unplugged. The other ones cause the truck to surge. I did the buss test and they all passed. But injector number 5 is squirting so much oil and it’s all splashing on the glowplug. The other #4 isn’t squirting at all. What could my issue be ? Also I’m guessing #5 has bad o rings
If there's no oil coming out the spill port on the injector then you need to replace that injector
I recently changed mine on a 97 7.3 now mine won't go over 30 mph without stalling and missing also shakes bad at idle could it be a bad value cover/harness?
Did you figure it out ?
@@LemonySnicket-EUC
Yeah had to replace the IDM(injector driver module)
Did he say waller
What can I do? My truck stopped and doesn't want to start. but if I use the spray starer it turns on and off. Please can you help me. Thanks
do you all have a phone number i can call for ordering parts
Does this work for 12v Cummins?
Bwaaahahah!
It only works if it’s a Cali emissions 12v.
@@thoroughbreddiesel LOL. Nice work gents.
Being that this an informational video please use correct terms. Don't call an engine a motor..... I understand that the general public thinks they're the same. Any mechanic should feel stupid calling a fuel burning engine that makes it's own power internally via combustion a motor which relies on an outside source i.e. electricity to make its power.
Being that this is an informational video, how bout no..... Calling it an engine over a motor has absolutely no change in the context of this video other than to satisfy what seems to be a pet peeve of yours.
@@thoroughbreddiesel I'm talking about facts though sir. As a company people look to for guidance and information you should provide correct information. Any video, any conversation and always an engine is an engine and a motor is a motor.
Semantics. You're way too excited over something so small and irrelevant.
Charlie please don’t call this an informational video... It’s an educational how to video! You better not watch any more of their educational videos! Obviously they have flawed educational material! 😂
An engine is a motor, but a motor isn't an engine. Motor is defined as any of various power units that develop energy or impart motion such as a small compact engine, a gasoline engine, or a rotating machine that transforms electrical energy into mechanical energy. In fact, it would be more accurate to call a diesel a motor since it uses a turbo to recapture energy from the exhaust.