The fact that you realize you have came to a road block with first test . Then willing to share , just make me respect you more . Standing back and taking another look at other possibilities , not a thing wrong with that . Good luck looking forward to see what you might find on this one .
I saw the conversation unfold earlier. Wish I had something worthwhile to contribute. Looking forward to the outcome. I admire your patience and dedication. Thanks for sharing.
Corey, You always hop in where you can, you are definitely on the list. I think we are all a bit baffled on this particular one. All part of the job though. 🙃
Glad to have all the subscribers along for the journey. Just got to step back and re-evaluate our direction from time to time. Re-reading the SI right now. 👍
this is what its all about people learning together this trade is hard enough we all need to share the good times and bad times ,i think that's called learning
Most definitely. I opted to put the videos up because it's good and bad times. Yet I learn something with every job I do and I think it's only fair I share what I learn with everyone else. Others have done it for me
We can't win them all the first time. This will be a good example of how even seemingly simple failures can run you in circles. With the network of technicians available I am confident we can get it sorted. 👍🙃
Hey, sorry you got your butt kicked this time. Don’t be too hard on yourself, sometimes they are super tuff problems. Hope you figure it out. Stay busy, and thanks for posting! We are all learning...
Hazards of the job. This one will get sorted one way or another but not a high priority for the customer. He doesnt need it back until winter hits. That means plenty of time to get to the answer. This is an educational process at this point.
hi Science, i have the same problem on a 2002 excursion 6.8, same codes but the 720 keeps coming on, on top of that i suspect my torque converter acting when not supposed, because truck can be running but as long as i place it in gear it stalls and sometimes the p0720 comes right up, or does not comes out after engine stalls. im an automotive tech, but this is my personal truck, continuity from sensor to the closes ecm connector has good reading, i can also read the output sensor resistance on a grey connector close to the firewall by the left fender. i wounder if the input sensor is the problem or probably ecm. since im getting a false code p0720.
So I have very similar problem with an 03 350 and it has only 61 Kms on it. It too sits a lot. I was going to change the sensor the cheapest option but I am doubtful. Wondering what was your findings of if the guys put the truck down?
I've been dealing with a 2001 excursion with the same 2 codes I even replace the sensors then I remember what a good old friend once said don't overthink it always check the battery terminals and grounds and sure enough that did the trick this Guy had used them painted battery terminals from the auto parts store and it didn't have a good contact problem solved
I have the same issue at work but mine stalls at idle and in gear. I changed the OSS, still there. Tested for voltage at the connector 0.2v. Doesn’t it get reference voltage straight from the pcm? Have you found the solution yet?
This one ended up being a bad alternator. Diodes in the alternator were failing causing excessive AC ripple in the system. It was bleeding into the variable reluctance sensor circuits for transmission speed. That was throwing everything off. ruclips.net/video/-uKSn9eLO78/видео.html
@@ScienceOfDiagnostics I don't have a sensor on the transmission and have changed the one in the differential. My truck speedo around 65 goes wonky afterwards truck will slip between 2nd and 3rd overdrive light also flashes. When scanned it comes up as output speed sensor. Could the transfer case have a sensor on it.
Sooo where we at with it? I have a 250 6.8 in shop doing the same stuff, except my gauges are fine but abs pump triggers sporadically. Ill do the oss but cant figure why it would cause misses (ecm isnt catching) abs pump trigger with dim head lights and it just dies at idle... Then it can go 15 mins running good and snap fingers & cant keep running and misses to beat hell. Ugg... These rust buckets should just drown in a lake of fire!
Sounds like a charging system issue. The fault with this vehicle was a failing alternator putting too much AC voltage into the system (bad diodes) that I discussed in a follow-up video. In your case, your symptoms would lead me to load testing the charging system and battery before performing any other tests.
The fact that you realize you have came to a road block with first test . Then willing to share , just make me respect you more . Standing back and taking another look at other possibilities , not a thing wrong with that . Good luck looking forward to see what you might find on this one .
I appreciate it, I'm trying to bring good content for everyone and I think learning from our failures is a great learning tool.
I saw the conversation unfold earlier. Wish I had something worthwhile to contribute. Looking forward to the outcome. I admire your patience and dedication. Thanks for sharing.
Corey,
You always hop in where you can, you are definitely on the list. I think we are all a bit baffled on this particular one. All part of the job though. 🙃
Did you ever fix the issue ?
We're all here to learn brother. I often get my butt kicked but that's how it works. I'm sure you'll figure this one out. Thanks for sharing! 👍
Glad to have all the subscribers along for the journey.
Just got to step back and re-evaluate our direction from time to time. Re-reading the SI right now. 👍
Dylan what Dylan said 👆
I'm happy you did the follow up and pt 1 original video!! Thank you!!
this is what its all about people learning together this trade is hard enough we all need to share the good times and bad times ,i think that's called learning
Most definitely. I opted to put the videos up because it's good and bad times. Yet I learn something with every job I do and I think it's only fair I share what I learn with everyone else. Others have done it for me
Chris you will figure this bad boy out man. This is all learning for all of us and this is real life. Keep up the good fight brotha.
We can't win them all the first time. This will be a good example of how even seemingly simple failures can run you in circles. With the network of technicians available I am confident we can get it sorted. 👍🙃
Did u ever figure it out
Just saw the answer in the comments replies. I don’t have a scope to check ripples but will mention this problem to my customer
Hey, sorry you got your butt kicked this time. Don’t be too hard on yourself, sometimes they are super tuff problems. Hope you figure it out. Stay busy, and thanks for posting! We are all learning...
Hazards of the job. This one will get sorted one way or another but not a high priority for the customer. He doesnt need it back until winter hits. That means plenty of time to get to the answer. This is an educational process at this point.
I'm having the same problem how did you fix it ?
Change the alternator it could be a bad Diode. Try running a AC ripple test.
hi Science, i have the same problem on a 2002 excursion 6.8, same codes but the 720 keeps coming on, on top of that i suspect my torque converter acting when not supposed, because truck can be running but as long as i place it in gear it stalls and sometimes the p0720 comes right up, or does not comes out after engine stalls. im an automotive tech, but this is my personal truck, continuity from sensor to the closes ecm connector has good reading, i can also read the output sensor resistance on a grey connector close to the firewall by the left fender. i wounder if the input sensor is the problem or probably ecm. since im getting a false code p0720.
So I have very similar problem with an 03 350 and it has only 61 Kms on it. It too sits a lot. I was going to change the sensor the cheapest option but I am doubtful. Wondering what was your findings of if the guys put the truck down?
I can’t wait to find out how this one ends!
That makes 2 of us PJ. I have some research to do and will continue on from there.
I've been dealing with a 2001 excursion with the same 2 codes I even replace the sensors then I remember what a good old friend once said don't overthink it always check the battery terminals and grounds and sure enough that did the trick this Guy had used them painted battery terminals from the auto parts store and it didn't have a good contact problem solved
I have the same issue at work but mine stalls at idle and in gear. I changed the OSS, still there. Tested for voltage at the connector 0.2v. Doesn’t it get reference voltage straight from the pcm? Have you found the solution yet?
It ended up being a bad alternator in this case putting excess AC ripple into the system. Would throw all the sensors off
Part 3? I’m having the same issues and would like to know your resolution
This one ended up being a bad alternator. Diodes in the alternator were failing causing excessive AC ripple in the system.
It was bleeding into the variable reluctance sensor circuits for transmission speed. That was throwing everything off.
ruclips.net/video/-uKSn9eLO78/видео.html
Wow im on my way yo buy a alternador i have the same problem
@@ScienceOfDiagnostics once oss sensor replaced did you see any improvement?
@@ScienceOfDiagnostics I don't have a sensor on the transmission and have changed the one in the differential. My truck speedo around 65 goes wonky afterwards truck will slip between 2nd and 3rd overdrive light also flashes. When scanned it comes up as output speed sensor. Could the transfer case have a sensor on it.
Sooo where we at with it? I have a 250 6.8 in shop doing the same stuff, except my gauges are fine but abs pump triggers sporadically. Ill do the oss but cant figure why it would cause misses (ecm isnt catching) abs pump trigger with dim head lights and it just dies at idle... Then it can go 15 mins running good and snap fingers & cant keep running and misses to beat hell. Ugg... These rust buckets should just drown in a lake of fire!
Sounds like a charging system issue. The fault with this vehicle was a failing alternator putting too much AC voltage into the system (bad diodes) that I discussed in a follow-up video.
In your case, your symptoms would lead me to load testing the charging system and battery before performing any other tests.
We have all been there😐
It's why I love the job and I hate it at times. But I have to remember that when I nail the problem down the victory will be that much better.