Intermittent No Start - Universal Testing Methods (Chevy 6.0L)

Truck dies on us on a test drive. Testing for spark, injection pulse and fuel are front and center of this diagnosis and we find along the way that we lost spark. Join the Danner boys as we fix this issue!
ScannerDanner Tools:
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For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.
Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium www.scannerdanner.com/join-sc... There is a 14 day free trial.
On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!
Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.

[@oscardelgado6582]

Mr Danner I appreciate your content. Thanks to you today I’m leaving my job and going full time with my business. I’ve watch your videos for years now and I’ve been a member of the premium website for years. Most of my diagnostics skills have come from watching yo ur videos and following along with your classes and book. Thank you again.

[@ScannerDanner]

This is so awesome to hear Oscar! Wishing you good providence on this new path. Thank you so much for this message, totally made my day.

[@user-oq3dd5xj9m]

I hope you going to succeed. But never ever leave this classroom as it has never ever had an end. I wish you all the best and hope many happy customers will come back again and again. I hope to join his premium service just to learn and hope my childhood dream to become grease spanner boy😂😂 will come true

[@georgenjuguna9869]

How do join the premium channel

[@danmoen755]

The battery tipped over drained the acid in a low ditch jack it up crank the tire like a push start or walk all night down the mountain. CALL DAD!

[@danmoen755]

Don't drink and drive was fun while it lasted thanks dad.

[@Ken-1]

Paul, you dropped a gem there about not selling time upfront. Diagnostic pricing is one of the hardest things to explain to a customer, especially as an independent mobile technician. I wish I could get folks to understand that $100 spent on honest and accurate diagnostics can save you THOUSANDS of $$, and just as many tears. It's like they say: "You pay me for what I know, not what I do." Great stuff as always my man! Blessings and much love to you

[@orkidorkid]

Your videos are a fortune ! Thank you for each and every second you spend on making these videos.

[@ScannerDanner]

Thank you! People sometimes don't see what it takes to produce these the way we do and I appreciate this comment, a lot!

[@automotivated5934]

@@ScannerDanner a lot of work to make videos at SD quality! Shout out to Caleb!

[@ScannerDanner]

@@automotivated5934 shout out the Caleb indeed. Thank you!

[@automotivated5934]

@@ScannerDanner your welcome! Caleb seems to have learned a lot on the automotive side too so that’s awesome! I worked with my Dad. He owned HVAC business for 25 years. Those skills are with me today and they mean more than I thought at that time. Not only did I spend a lot of time with my Dad but it gave me opportunities galore! Lol. I’m happy to see you teach your son like that and give him work to do.

[@Automotive_Solutions]

The editing and camera work make the learning from your experience even more enjoyable. Great job - both of you 👍

[@calebldanner]

thank you so much!

[@hanssolo8795]

This is like a cross between House and the Good Doctor for cars and trucks.Its really satisfying when you can do it Jeopardy style by looking at the video headline and getting the problem correct.

[@dharley189]

My 20 friends would take turns pushing truck to shop. I love trying to beat you to the diagnosis. I think I’ve seen almost every scenario in 45 years. Another great “real life “ video.

[@nelsonnarciso1791]

The excitement in your voice when you find the cause of the issue sounds like me. Love when I find the issues. Not too many of us out here get excited in our trade anymore. Good work paul.

[@ScannerDanner]

It is exciting to find the root cause of a problem. I love it! Always have. Thank you!

[@bigdog7813]

I've found that most folks like us that are or have been in the trade enjoy puzzles - crossword, jumbo, sudoku etc. We love the mental challenge and, as ScannerDanner notes, the search for an answer - the true root cause. Fixing the issue then becomes less exciting, at least for me. Just my 2-cents.

[@darioandrijasevic2804]

Thank you Caleb for the amazing, world class editing and camera work which makes Paul's absolute fortune of knowledge even more accessible and clear to us viewers. The editing and filming are simply next level. Also, love when Danner is in the videos.

[@calebldanner]

Thank you so much for the comment. Comments like these inspire me to keep improving and bringing you guys the best i've got

[@ScannerDanner]

People are starting to notice my son. Proud of you and blessed to be able to work with you

[@ScannerDanner]

Thank you Dario!

[@bigfootemobileauto9734]

Oh yes you guys both are a gym! And without the expert camera work and editing it would be like half the other videos out there not really worth watching! Keep up the good work ❤️

[@faustogonzalez8397]

Danner is a complete Blast, I'd love to be at a "Kegger" with you guys, you guys rock!!

[@jonesuff]

Dude Caleb is KILLING IT. Editing is becoming godlike. Like a hybrid of point and shoot style diy videos mixed with some pro style speed tv-ish scene transitions. It’s cool to see it all coming together.

[@ScannerDanner]

He really has an eye for this and I'm super grateful for him. Thank you! Sharing with him now

[@tommarshall8110]

Paul, you have the best youtube auto repair channel by far. And Caleb does an awesome job with the camera work and editing.

[@ScannerDanner]

Thank you!

[@djsupra6518]

Damn bro love your way of thinking and you playing around while working and tryna figure out the problem hahahaha you seem like a hella badass guy to hang around with bro straight up. You’ll never work a day of your life if you enjoy what you do. Instead of getting mad and frustrated about tryna figure out the problem your just having a blast Love It Man Stay Blessed 🙏

[@ScannerDanner]

Thank you!

[@TroyStevensStelzerPaintingInc]

Thanks @ScannerDanner for what you do. The fact that you get to work with your son is priceless. My Dad was a lifelong mechanic, but it wasn't until he passed 11 years ago that I really got into working on cars, (out of necessity initially, if I'm honest). After hundreds of hours trying to learn and hundreds of mistakes made, I can now say that nothing, (workwise), gives me greater pleasure than properly diagnosing/fixing a vehicle problem. Great work on the camera & editing too Caleb. I appreciate you both.

[@ScannerDanner]

Thank you so much Troy and I am sorry about your dad. None of us are promised tomorrow, may we take each day and live it as if it is our last and use that time to love one another, not for selfish gains.

[@stationaryenginesworldwide]

these kinds of Videos are what bring the viewers Paul and Caleb. the side of the road troubleshooting ,the diagnostic process they truly are what make this Channel Amazing..keep up the great work guys ....hooked on this channel and premium for life!!!

[@ScannerDanner]

Thank you so much!

[@travisc5658]

Man, when u said the customer is full of it, I used to think like that too, and now I'm just like u on these intermittents. Same though process and everything. It's funny how experience in this field will always eventually lead u to logical conclusions. Just like the diag. Process It's fun man. I can say I do luv my job because after thousands of repairs, I still feel just as good when it starts when it didn't before or whatever it was doing. Greatest feeling, plus teaching the helpers and seeing them get it.

[@user-oq3dd5xj9m]

Back in da class again. This is only school I can go everyday even Saturday Sunday with no question asked

[@djosbun]

Thank you, Paul and thank you, Caleb! The efforts of both of you help thousands of people to be smarter and more efficient! Caleb, I hope the baby is doing well! There's nothing better in the world than being a father.

[@calebldanner]

Thank you for the thoughts and comment, I appreciate it a lot. She is doing great and continues to be my greatest blessing every day.

[@shagytrsc2]

-Caleb: How about I crank it, you hold it?

[@smms5056]

When I was a kid, I had a Toy Dump Truck . I'd push it round the yard filling it up with dog crap. It was a dirty job. Only issue I ever had was operator error , miss that dump truck. Hauled alot of crap

[@whitetiger8652]

Thanks Paul for the great case study as well as driving home the importance of voltage drop!

[@andrewgonyou9903]

You might get zapped. Proceeds to do it anyway. What a great son

[@ScannerDanner]

For sure!

[@pinkfloydscorpio]

This might be my favorite video of yours. You and James crack me up. Love your relationship with him. Caleb is the man. Watching him grow over the years is awesome. Also, Danner connect the zip tie on his way to you was hilarious.

[@CarDocQatar]

Your diagnostics increase my passion in this field . Thanks man

[@paulkirkland1535]

Paul and Caleb,you guys are great brothers. Paul like yourself I've been in the auto repair industry a long time (45 years to be exact) so I know the drill. With all the new technology in automobiles today,you simply can't stop learning and I make it my duty to learn new things all the time. IMO You,Eric O,PHAD,ETCG and Advanced level diagnostics are the ones I've learned so much from. Paul I consider you to be the Bob Ross of auto repair and diagnostics,especially when it comes to all the electronics and computer components found in autos today. Do you have an engineering degree? If so you could be the one to properly engineer and design autos. Caleb you seem to be an ace at camera/video work,are you a cinematographer? Caleb,your feelings about being a father must do you proud. I regret not being a father and now am I realizing it. Anyway guys have a gr8 God blessed day😄🙏👍💯.

[@spelunkerd]

That no start (crank or no crank) scenario, in the middle of nowhere, without many tools, is my favorite problem. Every one of us will encounter that at some point, and you get to be a team hero if you can sort it out without calling for a tow. It calls to mind what tools are worth carrying in the trunk. Test light, a few wrenches, screwdriver, perhaps a cheap multimeter?

[@MattyEngland]

I carry all that plus a coil pack and fuel pump relay.

[@mph5896]

@@MattyEngland Wiring diagram is very nice to have. Internet on phone I can pull them up

[@jkbrown5496]

Unless it's the brake light bulb gone out on a 2019 Tacoma out in the woods. Casey LaDelle dragged one out of the Oregon mountains, he even had a code reader which showed a brake switch open code. Owner thought it was his "smart" key, but back at home, spare didn't work, so off to dropoff at the Toyota dealership where the guy worked. Next morning, the mechanic changed the bulb, fired right up. Nice, crappy, and dangerous for a truck sold to go out in the woods design. Hard to get wiring diagrams when you have to hike a mile up the mountain, just to get a call out for a tow.

[@spelunkerd]

@@jkbrown5496 Interesting to hear you say that. My Subaru does the same thing if the fuse to brake lights blows. There is a work around where one can release the transmission lock and still drive, but without inside knowledge, an amateur driver is hooped.

[@raviautoscanning]

Thank you. You make us sense to keep the attention always for basic tests first what so ever. Wish you guys happy and healthy life!

[@joeidaho5938]

Love when you work on these old trucks. Will watch it later. Thanks, Paul.

[@Greg18m7]

This video was awesome being able to keep a positive attitude and a level head in this trade can be half the battle sometimes

[@learningwithjuan]

I do appreciate this content so much. Glad to see a loving father with his family members. Like cars and mostly this area of it. Electronic wise.

[@josephs9268]

Another one finely done Danner family. You know it's a great video when your using your critical thinking along with Paul as you watch, are laughing out loud, and have a giant grin on your face the whole time.

[@ScannerDanner]

Made me smile

[@namasteforgetmenot]

Excellent video showing the procedures involved throughout the fundamental diagnostic process!

[@johnpetersen8116]

Nice to see a good basic approach with some old school thought going on here. It's where we all start from! Good to see a "what if" scenario for those of us that do occasionally find themselves having to think on their toes! Love the analogy too...you're out in the woods....

[@martinguitarhd28]

Fantastic video that's why I am a premium member because there's so much to learn from you.thanks .

[@ScannerDanner]

Thank you so much. It is because of you guys that I still produce videos here. It's like having a patreon account or channel support but you guys get something huge in return.

[@papapetad]

You guys are awesome. Danner rocks too. Love the interractions you guys have while providing your audience with invaluable knowledge. Blessings

[@Bwelsh1981]

I've always loved how Excited you get about the Simplest Problem No matter how big or small. Passion! You remind me of Me when I figure something out . Your Videos Polarize me . One of the reasons I watch and always will! It helps keep my mind fresh since I have gone into the Transit Industry. Keep up the good work.

[@ScannerDanner]

Thank you Brian! It is still a rush and I love it so much

[@onemechca]

Like I always say in your videos. BRILLIANT. BRILLIANT diagnosis and explanation.

[@fernandocastillo8381]

I was predicting loss of 5v from pcm after it got hot , Great video as always ,thank you guys for all you do.

[@salvadorgutierrezr5914]

Thanks for teaching scanner Danner and Caleb God bless you and your family 🙏

[@gordonw9208]

Trying to find intermittent electrical issue on my GM van. Your videos are helpful for knowing process of diagnostics, thanks a million. I know I'll find it eventually.

[@frankoattes]

Another fantastic and in depth tutorial on how your mind works Paul when troubleshooting a fault with multiple possibilities as to what why and how it occurs. Brilliant love your videos and explanations, I’m alway learning from every video. 🙏

[@ScannerDanner]

Thank you franko!

[@petersonbalavoirjeanbaptis7649]

I'm Peterson from Haiti,and always got my eyes from your experiences about vehicles,then you really a good teacher at all

[@mikeaho4143]

Great case study Paul. I really like the "live" action.

[@fredautos]

Troubleshooting technique was awesome.. thanks to You guys! Im learning alot!

[@ukspeedbag]

Another great video, Paul. Caleb should use the excuse that holding a plug lead and getting a shock can damage his camera. 🤣

[@ScannerDanner]

🤣

[@chrismay9319]

I had this exact problem with a 6.0. Another tech put in a motor. Ground was loose and seeing you perform a voltage drop test I used the same test except with a meter. Found my problem. Your awesome

[@Cruz0604]

I diagnosed a similar problem with just a multimeter, Took me all day an part of the next but I fixed it! It’s nice to learn other ways to diagnose!

[@asmirr4696]

It's absolutely amazing you and your brother work together ❤️

[@dakotastorms4701]

This was a fantastic video. I have an 04 6.0L with crank no start I'm working on right now. Thanks for the help.

[@jameswood7712]

Is the kegger story bringing back memories? The body for the ground is all rusted away .SMA country.

[@weshawkins7165]

As I’m watching this excellent video and your checking the coil signal wire I’m yelling at my iPad, it’s a ground, it’s a ground, it’s a ground! My wife is looking at me like what’s wrong with you. You know why I thought it was the ground, because I have been watching your channel and learning. This guy who is 65, a tech for 48 years is still learning thanks to you. Great video!

[@ttstang43]

the love you have is amazing man, you definitely dont have a job you have a passion...

[@ttstang43]

thank you Paul for stating about pay and experience and multiple diagnosis

[@guymanicone7921]

I don't know why but bad grounds are my favorite diagnosis. To think how many parts have been thrown at issues when all it is was a bad ground that can be fixed with a couple bucks is so satisfying.

[@dumbeezy5480]

Guilty af here. Replaced a battery and alternator but returned the alternator because i found out it was a bad ground causing intermittent no start. Smh

[@dianapotoski4035]

You did Awesome. That was a fabulous video and your inspection was very thorough and above what the work called for beyond. Appreciated the time spent to watch this video. Thank you 😅.

[@dtandfam8100]

Awesome video Danner's. As always enjoy the thought process and reality behind the diagnostics. Your videos are "real world" type scenarios. Agreed. Troubleshooting can be so rewarding!! Thanks for sharing 👍

[@ScannerDanner]

Thank you!

[@bigdredre3725]

After I went through the same type of problem and fixed it I find myself watching several videos of the same issue and solution but thanks anyway good job again ❤

[@Troy_Built]

I really liked this one. It reminded me of one I had with my grandparents 98 Ram a few years ago. It was an intermittent problem that sounded like a grinding noise in the transmission. After messing with it for a while I took it to a friend of a friend who does mostly Dodge transmissions. He couldn't get it to act up so I filled the tank and had one of his mechanics put a recorder on it and drive it back and forth to work and lunch for a week. The fourth day it lost the ground for the torque convertor lockup and started grinding. They replaced the ground and convertor then upped the pressure a little bit. It hasn't happened in the 5 years since.

[@robertmedina6875]

Great video!! These GM trucks have ground issues with the coil grounds. I have seen quite a few of them! Thank you Paul, Caleb and Danner!!

[@danoakes8680]

Panduit makes the absolute best cable tie cutter. The old school guy.

[@fixitjerry]

I love that feeling after a good diag! It's the best high! Keep it up guys!

[@robertpope3619]

Wow guys great video, I always enjoy all of them but this one was so cool to see y'all get pumped after finding the bad ground.

[@pouchy400]

Caleb, love your editing work.

[@ScannerDanner]

He is the man, thank you!

[@calebldanner]

Thank you so much! I really appreciate that you guys notice the little things. Comments like these make my job even more rewarding

[@faustogonzalez8397]

Also, I agree with the comments below about Kaleb's video editing, Awesome, the best of all these KZbin automotive shows !! Great job Kaleb, besides Paul's knowledge and teaching half the enjoyment of these videos is your talent !!

[@nigelbiscombe9199]

Priceless the stuff your son will learn. Love it.

[@davidostring1289]

Love watching your videos as always. Keep up the good work.

[@stevepalenicek4690]

Awesome u and your sons workin together congrats on family growth

[@andresgiorgio7335]

thank you gays!!! awesome!! please keep motivating us to continue working and in my case learning English too

[@nicknicu1787]

Awesome case study! Always satisfying to find a bad ground! 👍

[@mymechanicfriend6017]

I always dig how you first gather info and then verify the complaints as should be! I subscribe!!!

[@ScannerDanner]

Welcome! Thank you

[@mymechanicfriend6017]

Yeah... You did it like it's real in the field. As serious technicians, we often go into the field and then we get clouded by either not having a diagnostic approach, or by being overwhelmed by what first should be our diagnostic approach. The video shows what can happen in the field in real time and it better preps other upcoming Automotive Repair Artists Lol but for real! Two thumbs up!

[@ivansperanza]

i can see it o your face.....the joy of fixing a difficult problem is obvious, you could hardly contain yourself....great video.

[@ryurhd]

Love watching/learning 🤙

[@Hndsomehubby]

Your brother is so nice and easy going, love the channel, my dudes.

[@tracydiller9378]

Great video Danner Boys as always.Keep up the great work and stay safe.

[@kellyrak2711]

Just bought your book and I'm learning a lot. I'm a heavy duty mechanic and I find your testing methods very applicable to my work even if I don't work on many gas vehicles

[@ScannerDanner]

Thank you so much

[@sekirembekafrank3659]

Which book is that?? Am also interested to have it

[@korobuildschannel597]

Thank you guys for making this episode, it was really entertaining and interesting to watch a diagnosis made with fewer tools :) This channel is just God's work

[@ScannerDanner]

I hope so brother (God's work) because nothing else matters 🙂

[@00jake00]

Had a very similar issue on a buddies truck. his was a 03 2500 with the 6.0. it started to shut off on him and left him stranded a few times. the engine had some work done to it, (cam,heads,pistons) was supposed to be a hot rod. We did almost the same exact diag as you did. We noticed that the rpms would not move on the tach (not sure if chevy does that but my fords do) we checked for fuel pressure because he thought the pump was bad but we had good fuel pressure, checked for spark and had no spark, using the vantage pro we tested for crank sensor signal and had none. He was soooo happy when we finally got that running. it was a real headscratcher that's for sure. no codes and it was interment it took us most of the night in the shop cranking on it until it finally coughed up and started to not start.

[@seanisthebomb117]

The funny part about your brother "complaining" about customers thinking he's you; I came across his videos on KZbin before I saw yours. He had a great case study on a bad ground on a Ford escape if I remember correctly.

[@Pablo_Automotive]

Thanks a lot Paul and family

[@gregmackenzie]

That was fun, we appreciate you guys!

[@MaximRick]

First time watching this channel. Love the energy and approach in figuring out these car problem puzzles! Glad to subscribe!

[@ScannerDanner]

Welcome and thank you!

[@raymondmetcalf9110]

I enjoy just as mutch as ever plus still learning at 70 cheers

[@paulfiebke3909]

Miss seen your class room and always love seen you do what you do best. My baby boy is 21 to. Keep up the good work.

[@todaywithbk]

Absolutely fantastic work!! Thanks for taking the time to explain everything.

[@ramzizakaria499]

Always with the good stuff as usual 👌🏻 I salute the job you are doing, it's just amazing every time, God bless your kid, he's got great filming skills.

[@robertfinnerty7201]

Thank you. I have a 2003 and this information may come in handy one day.

[@musaalgheriany8917]

Absolutely very useful video. Thank you so much

[@john7017]

Great Video! Love going to Jimmy's Shop. Another great diagnosis, excellent camera work and editing Caleb. And Jimmy can drag his feet anytime he wants. Thanks for sharing.

[@calebldanner]

Thank you very much!

[@leonelmendoza5028]

Enjoy the every day watching your videos and working with your son

[@mikeberry885]

Love the live videos,bcs that really shows how to attack the concern

[@artushhovhannisyan1683]

It’s just very entertaining to watch… amazing job.

[@patriot2164]

That was a cool diag ! Thanks for sharing !

[@billrimmer5596]

Man that was a good one!! Thank u for your enthusiasm. It’s contagious😄😄

[@ScannerDanner]

Thank you Bill

[@martinjeschke8137]

Hey Paul great case study. Over time, I have come to think, " the customer knows what's wrong, I just haven't asked the right question yet."

[@lawrencetickle2706]

Preach it brother. I'm a family lawyer. Why should you pay me less for solving your case in a week as opposed to two years later. I charge flat fees so not only are you getting results, you're getting them quicker and you don't have a lawyer that sucks you dry hourly.

[@kbru78]

I can't believe you didn't take Caleb's word on the no spark! Lol great video as always.. Back to the premium content, cya 😎

[@ScannerDanner]

I really didn't. I needed to see it. But I should have listened to him lol

[@calebldanner]

It's okay, it only hurt my feelings a little :(

[@ScannerDanner]

@@calebldanner 🤣🤣 I really wanted you to get shocked

[@kbru78]

@@calebldanner haha I'm sure it did, you've only been doing this for years at this point!

[@eli310]

the master tech mr paul danner ur the 1 who made me buy a lab scope years back thanks for everything u do for us ur much appreciated thanks teach

[@alrifainidal]

lovely video Mate. thanks for your time

[@lDNASTYl]

I really appreciate all your content guys im in my 3rd year as a gmt at goodyear and I wanna learn and I wanna be better

[@lDNASTYl]

Also the case study u did on the kia Forte with the plugged cat helped me diagnose my wife's 2012 hyundai veloster in the parking lot of her job 30 min from home plugged cat no codes starts and idles but falls on its face when u give it gas pulled the upstream o2 out she sang like a banshee she made it home like that... then I got to change her manifold in the street in the dead of winter that was fun... anyway super grateful for your content looking forward to the next one

[@chrisi1909]

What a great Educational Video again - Brave Caleb , Smart Paul - Best Combination you can find ! And happy Doggy at the End....

[@ScannerDanner]

Caleb was brave in this one 🤣

[@cullenmiller8170]

Great video like always. It was fun to watch you figure that one out.

[@ImNotADonutUMAI]

Thanks for your wonderful videos.. Can not wait for more videos.. Learning everything i can from you.. God bless you.. Franco Perez..