I've said this on a different channel but, I think as a professional DIY'er, having a pico and borescope are really 2 important (tho expensive) tools to have. With them you're able to confirm (not guess) what's up with a DTC like this before getting into a lot of disassembly. If I were a 9-5 tech, perhaps I'd know from pure frequency of repairs what an engine is doing simply due to the number of times I've done the repair. As that's not the case, having the ability to test/confirm by literally only removing a single spark plug is truly fantastic. The fact that a customer can then make their decision based on this evidence is great and we're not accused of firing the parts cannon at a problem (only to have the problem go unsolved). I thank you Mike for showing these repair approaches back-to-back. It really emphasized to me how important these 2 tools are.
As a poor DIY'er, who can't afford any brand of useful scope, I'd have to use the braille method: Clear flood crank to see if I could hear any mechanical issue, if not, then I'd be swapping parts: Swap plug to hole 4 Swap coil to hole 5 Swap injector to hole 6 If the misfire moved, then you know what the problem was. If it didn't, then I'd use test lights to make sure of power, ground and signal for number 1 injector and coil. If I still didn't find the problem, then I'd have to break out the compression tester. I would probably have taken a reading off of 1, 4, 5 and 6 due to the layout of the engine. I'm reasonably sure I'd have found the problem, nowhere nearly as quickly as you, though. Keep up the good work!
Hey Jim, thanks for watching! Yes, you would have come to the same conclusion eventually. In the shop, professionally, time is money. At home time is a little more free to investigate different paths. In the end though, all that matters is that the car is fixed right the first time :) Mike Becker, Senior Instructor
Blessings. Im from puerto rico. Not to much people here use the scope, they are old school. But i want to master the use of the scope. Now days the cars comes with a lot new technology and i want to be side by side. Your videos was help me a lot. Looking forward for more videos.
Great video, thank you! I love my AES Wave pocket scope with the amp clamp. I wasn't taught this trick in automotive school years ago so I was defenitly amazed when I learned how to do it. Think I saw it on Erics channel SMA.
I think the hardest part of scope use is ease of access. My laptop - hantek/scope module 4 channel with all the leads and power supplies and cords and test leads used to make opt for the plug and coil swap. Until I got my autel scanner-scope tablet. So incredibly easy to use and set-up. Fits in a modified dewalt drill case. Leads in zip locks just like Mike said in earlier vids. If it's not easy to set up, you really don't want to use it.
Relative compression is a great first step for any misfire complaint. Then onto the paddle probe for secondary, and an amp clamp to check the coil primary.
Hey Voltage Drop Diagnostics, thanks for watching! It's on of mine too. I really really love capturing an in-cylinder waveform though. I think that's my favorite test...but relative compression is up there on the list for me :) Mike Becker, Senior Instructor
Depending on experience and the vehicle, you could cut the diagnosis time even further by simply listening to the engine crank in clear flood mode (On a Honda though, you'd likely be better off pulling the fuel pump fuse to prevent the engine from starting). "No tools required" diagnoses are the quickest of all. Either way, the scope capture provides visual confirmation to the customer of the engine mechanical issue.
Hey Joseph, very true. An experienced ear can tell you a lot about what's going on. That's hard to share with a customer though. I'd prefer to show them the labscope capture and say "hey, see this? One's missing, there's your misfire" ;) Mike Becker, Senior Instructor
Mike!!!!! Miss you buddy. I dont get notifications at all anymore since you changed to GoTech so I missed Februarys live class. I'll be looking April 2nd to see if you are live or not. I love that relative compression test. Just last week I bought all the adapters to run my scope attachments on the pico, the Uscope, and the dvom. Everything fits everything now. Hope you and your growing family are all doing well.
Hey Mike, sorry to hear you didn't get an announcement! As you can tell by now, no class today...i'm working from home. Sounds like you're all set up for some Grade-A testing! We are doing well...the little man's already 3 months old. Time flies for sure. Hope you and your family are doing well also :) Mike Becker, Senior Instructor
Great Video Mike. Learning the scope and what it can do will definitely add to the learning curve. Hope you and your family are well and looking forward to the next video!
Thank you, Mike, for your time and effort explaining such case study. I have a question if you don't mind, and I'd grateful if you give me hint, link, or document to get more basis. You said: broken plug (for not being torqued) causes internal damage to the cylinder/piston > leading to lean-burn condition. Why? and why does lean mixture burn valve(s)?
Hey Ma ker, thanks for watching! Lean=hot. A lean burning engine will cause cylinder temp to increase. If the plug isn't torque, a/f mix can escape past the plug. The plug will get overheated because it's not secured in the head transferring heat. Does that explain it a bit? Mike Becker, Senior Instructor
I thank you for your concern and reply. 1. I got this: when the plug is not torqued > mixture escaped, but why does the plug overheat then? (there is no combustion because there is no compression!) 2. I know that st. mix has the optimum comb. temp. and o/p power. By logic, if we enrich the mix > we got more fuel > higher comb temp, increased imep, and eventually more power. How lean mix do rich mix's job? correct me if I am wrong. 3. If I postulate that lean leads to more heat, why does it burn valves? what is the concept? Thank you again, Mike.
Good info but a bit misleading Mike. With the scenario here, a seasoned tech would have known very quickly when starting the vehicle that there was a compression problem and you could likely skip checking fuel and ignition first.
Hey Frank, you're right. A seasoned tech may have picked up on it right away. But, a labscope picture is easy to show a customer. It's black and white for them. Mike Becker, Senior Instructor
The quick & easy way to start a diagnosis! Great video Mike & tips! What borescope is that? I had my Snap-on wireless borescope but have used Olympus articulating borescopes for over 35 yrs on aircraft so I finally broke down and bought the Oasis Scientific Vividia D3245 USB 180 degree digital dual articulating 4.5mm borescope and feel at home again. Fantastic scope w/camera especially great in-cylinder articulation makes it such a pleasure to use and great detail!
Hey Bob, thanks man! Hope all is well with you. Saw the fishing pic's. Bet it was nice to get back out there. Yep, i'm using the Oasis Scientific scope. Fantastic tool! Mike Becker, Senior Instructor
Hey Smitty, thank man! It's worth it, for sure! All is well here, weathering the storm. Hope you and your family are doing well also!!! :) Mike Becker, Senior Instructor
Hey Sakeenah Auto Solutions, thanks for watching!!! There's some lower cost Hantek scopes out there that a lot of people use. I've heard good things. Any scope is better than no scope :) Mike Becker, Senior Instructor
The replaced plug and coil issue emphasizes the importance of thoroughly interviewing the customer as to the history of the vehicle, not that you should always trust them. For the sake of discussion, I would suggest that the burnt valve may be the result of damage incurred prior to the valve adjustment. The ground electrode on the plug didn't bare the appearance of having been subjected to prolonged high temperatures associated with a burnt valve. They seem to often fail during a particularly long, continuous, high speed trip where a small leak would most quickly escalate to catastrophic failure. Good video, Thanks.
Hey Fascist Pedant, a thorough interview is key!!! Could not agree more. If only every customer would tell the truth. You could be right. Unfortunately, there's really no way to know for certain at this point. It was almost 40k since the valve adjustment, if that offers any credence to this. Mike Becker, Senior Instructor
Hey Jeremy, thanks!!! Sure, you could take it off, but time is money. That test would have been significantly longer had I pulled that off. Mike Becker, Senior Instructor
I've been watching /learning from your video, just purchased an Autel Ultra, now i'm trying to learn how to read waveforms and oscilloscope on sensors and engine related task, do you know where i can acquire best book or video to learn from? Thank you
I agree, most issues aren't mechanical. But, a 4 minute test to prove it's not prior to do anything else is worth it...right? Mike Becker, Senior Instructor
A clear flood cranking test would have proven a low compression cylinder without any equipment being used at all. Diagnosed in a matter of seconds . The cylinder number/s is irrelivant at the diagnosis stage. The relative comp test is great and so is the bore scope but for further diagnosis a leak down test next would condemn any other cylider/s that may be lower than expected and the fault would be easily found.
Sure, you guys use voltage to see it. I find it's messier though because of the other loads on the engine that may be present when cranking. I prefer current. Mike Becker, Senior Technical Instructor
I dont go for the labscope first to pinpoint a misfire.... if i suspect low compression i do a clear flood crank and listen to the engine,99 percent of the time you will hear it.And if it happens to be a cylinder under the intake im pullin it anyway to do a leakdown.Now i could see the value in that test if you had a misfire without a code that was due to low compression and you wanna know what cylinder is low in case its under and intake or not so you dont waste time.
Hey Jmccoy85, a trained early takes time. Not everyone can hear it either, especially a customer. I prefer to capture with the labscope and show them point blank that it's going to be a bigger job than what a simple misfire may normally be. This way, even for someone who's never seen a labscope before, it's plain as day. One of these things isn't like the other...haha! Mike Becker, Senior Instructor
Have. 14 equinox 2.4 with a misfire. All new timing crank sensor mass air fuel pumps. Runs good till u get to a stop light. Then jurks alot. Increase rpms smooths out. Any ideas
Hey Mike - While it was faster [in this case] to do the cranking/scope test, the swap test would have stopped and directed you to a potential mechanical issue when you pulled the #1 plug and found the physical damage to it. I realize you did not know this beforehand. I'm not arguing here - a cranking test, to start with, would have led to a #1 cylinder issue and then resulted in the finding of damage to that plug. What I am saying is: if the vehicle was equipped with a coil over plug system [COP], easily accessible from the top, a coil swap may be faster [and a Tech would not need a 'scope [$$] to perform.] If you are faced with a rear bank misfire on a transverse V6, I agree that the making a cranking/scope test the test of choice would be faster in eliminating or verifying an compression/mechanical issue and on what [verifying on which] cylinder(s) the misfire was occurring on. In an easy to access a COP engine, the swap coil test maybe more efficient. Perhaps another video like this comparing the same approaches, but using a COP 4 cylinder engine? Thanks for hearing me out.
Hey, Thanks for watching! In this case, the customer changed out the coil and plug prior to bringing it in. He didn't inform of this until after I called and told him what was wrong with it. Happens far too often. Anyways, sure on a 4 cyl with the coils on top it may be quicker to switch. But there's issues with switching coils around too. Shorted coils could kill a PCM driver.There's a lot of variables. Mike Becker, Senior Technical Instructor
@@GoTechTraining On the other hand, if the coil is prone to burning drivers it would likely burn the OG driver. If one's blown, you'd might as well burn them all.
Good Show, Mike :) Other than what you demonstrated, this cd be a case for having a camera record every job? Like, what if, a client doesn't admit to doing his own work, after you? You cd replay your record, when necc?
@@GoTechTraining Thanks for your attention :) I'm not sure how documentation would stand up against a claim, without vid evidence? While you're there, have you done auto trans vids?
Hey, fellow Wisconsinite (Green Bay) here. Thank you Mike for all the great content. Your info has helped me solve multiple issues on my personal vehicles. Thanks again..
Makes you wonder who changed that plug. It had to be fine when it left your garage after the valve adjustment and I think I recall you doing a timing belt on it too, no?
Hey, yep, I did the timing belt too. The customer installed his own plugs...by his own admission. Which is always a deep exhale when I see a vehicle come in that I worked on previously, right!? Mike Becker, Senior Technical Instructor
@@GoTechTraining Yeah, that's a hard lesson. It can happen to anyone. Even faster check is to listen to it crank...were you tipped off by the way it sounded when it cranked? I don't think Honda has a clear flood mode.
Right, no clear flood on there. I agree, listening to it crank is faster but that's a learned thing and hard to show a customer. This way, I show him a screenshot of the capture and what's missing. It's plain as day even for someone who's never seen a labscope capture. A pictures worth a thousand words, or RPM's in this case ;) Mike Becker, Senior Technical Instructor
Hey JB_BMW Repairman, I keep my scope in a box. All I did was unbox it. I only hooked up one channel. Not much to get ready really. Hopefully this gets people to unbury their labscope and put it to use :) Mike Becker, Senior Instructor
Last time I had a bunch of different misfire codes on my 99 Honda Civic EX, as in multiple cylinders, random misfires, I ended up doing a full tune up on it including valve clearances for nothing. The codes kept reappearing over and over again until that same tank of fuel was gone, and we refilled the tank at our usual gas station. (The wife was in a hurry one day and decided to try a cheap gas station on the way to work. Argggh!) Well, the car was approaching 75,000 miles so it wasn't a bad thing to do a tune up, but really! Is there any moderately priced and/or cheap test kit available to determine if your tanks gasoline quality is an issue? Thanks!
Mark, ugh fuel issues can be such a headache! The only fuel testing that I do is water/ethanol. You pull fuel out and make 10 separate lines, once it settles if its standard E-10, you should see on line of water with 9 lines of fuel above it. I've done it in just about everything, including a water bottle when I was in a pinch haha! Mike Becker, Senior Instructor
Question for you Mike eat all watching I am a DIYer and am trying to broaden my skills in the automotive realm and for the life of me can’t figure out the realities compression test, does this just involve the amp clamp and the scope or do you need a pressure transducer or am I just mixing up two different test? I have acquired the two channel pico scope which I think will accomplish most of what I need plus a 60amp amp clamp. Would this be enough to perform this test? Sorry for the beginners questions but I really want to learn more I find it so fascinating.
Hey John, you would use an amp clamp around the battery cable. You goal is to measure current leaving the battery powering the starter. You'll want the big clamp for this. 200/2000amp clamp is what I use. No worries on the question man, that's how we learn! :) Mike Becker, Senior Instructor
GoTech oh, I have a amp clamp with digital meter attached can they be used on a scope? I am not sure what the difference is with one without the digital readout to one that doesn’t have it.
Hey BB MD, that's a tricky question. There's a ton of 02 in a misfire. Theoretically I think under the right conditions you could end up with a negative trims, but it's not as common. Mike Becker, Senior Instructor
SUBSTANTIAL Go Tech Mike Becker Brilliant video tutorial amazing thank you for sharing what you know with us Go Tech Mike Becker From Nick Ayivor from London England UK 🇬🇧
My friend, I want a book explaining car faults, a program, or a site that makes it easy for me to read faults and explain them with pictures or videos from your problem, brother
Hey BiggSexxyRobb, the more channels the merrier! lol Seriously though, if cost weren't a factor I'd suggest everyone gets the 8 channel....but the 4 channel will do probably 90% of what you need. Mike Becker, Senior Instructor
GoTech The cost isn’t a factor for my situation! I was given some info recently that the 8 channel was never meant to be for the automotive side and that it’s been lightly converted over and that is why it doesn’t have connect detect and higher voltage protection and requires more attenuators along with some other stuff. I just want to make sure I invest my money right so a year from now I don’t regret spending $7000 on the master kit
Hey Uneek Logik, that one is sold by Oasis Scientific. I'f I remember right it's called the Vividia Ablescope. Google it, i'm sure you'll find it! Mike Becker, Senior Instructor
The one I have is the Oasis Scientific Vividia D3245 USB 180 degree digital articulating 4.5mm borescope. Stick it in the sparkplug hole and rotate the control knob & it rotates the head 180 degrees to look back 180 degrees...fantastic USB borescope!!
Hey Dave, thanks for watching. Sure it could have. But what would have led you to sticking it in the hole? Surely it's not your first step, right? Mike Becker, Senior Instructor
GoTech I would of obviously checked for electrical faults first and rectified if any found before continuing the diagnosis and I do agree the picoscopes are a very good tool when used correctly but being based in the uk although they are becoming more common it workshops/garages not a lot of people have access to them and not all diagnostic scan tools have an oscilloscope function which is a shame but we have to work with what we have got but great informative vids keep up the good work
@@chrisjohnson3767 For sure man! I try to get to all of them...I miss some, but I do what I can. Definitely check that scope out. It's a great tool...I just used mine tonight :) Mike Becker, Senior Instructor
Hey Lester, that's a great test. It is also something that takes a little bit of training/experience to get right. But once you have it its a super valuable tool! Mike Becker, Senior Instructor
So you're seeing rich codes on there...i'd take a look at the valve adjustment on there for starters. I have a video on that. Mike Becker, Senior Instructor
Hey Vencent Bauer, it's made by Oasis Scientific. I think it's called the Vividia Ablescope. A Google search should find it. Mike Becker, Senior Instructor
Hey, thanks for watching. Old cars break. Tons of people still drive them. The average vehicle life is over 10 years old today. That's the oldest it's ever been. People are hanging onto 15 year old cars more today than ever before. Mike Becker, Senior Instructor
Don't understand why all these channels are automotive have one car that sits in the garage the whole day and you make a video on it my brother works in a dealership there's 12 cars a day nobody has time to make a video I guess all these channels need some business
I've said this on a different channel but, I think as a professional DIY'er, having a pico and borescope are really 2 important (tho expensive) tools to have. With them you're able to confirm (not guess) what's up with a DTC like this before getting into a lot of disassembly. If I were a 9-5 tech, perhaps I'd know from pure frequency of repairs what an engine is doing simply due to the number of times I've done the repair. As that's not the case, having the ability to test/confirm by literally only removing a single spark plug is truly fantastic. The fact that a customer can then make their decision based on this evidence is great and we're not accused of firing the parts cannon at a problem (only to have the problem go unsolved). I thank you Mike for showing these repair approaches back-to-back. It really emphasized to me how important these 2 tools are.
Hey, thanks for watching! I can't agree more. Those 2 twos plug the knowledge of how to utilize them is priceless. :)
Mike Becker, Senior Instructor
As a poor DIY'er, who can't afford any brand of useful scope,
I'd have to use the braille method:
Clear flood crank to see if I could hear any mechanical issue, if not, then I'd be swapping parts:
Swap plug to hole 4
Swap coil to hole 5
Swap injector to hole 6
If the misfire moved, then you know what the problem was. If it didn't, then I'd use test lights to make sure of power, ground and signal for number 1 injector and coil.
If I still didn't find the problem, then I'd have to break out the compression tester. I would probably have taken a reading off of 1, 4, 5 and 6 due to the layout of the engine.
I'm reasonably sure I'd have found the problem, nowhere nearly as quickly as you, though.
Keep up the good work!
Hey Jim, thanks for watching! Yes, you would have come to the same conclusion eventually. In the shop, professionally, time is money. At home time is a little more free to investigate different paths. In the end though, all that matters is that the car is fixed right the first time :)
Mike Becker, Senior Instructor
Blessings. Im from puerto rico. Not to much people here use the scope, they are old school. But i want to master the use of the scope. Now days the cars comes with a lot new technology and i want to be side by side. Your videos was help me a lot. Looking forward for more videos.
Thanks for watching Nelson! You're right, with the tech in today's cars a scope is the way to go. Enjoy learning :)
Mike Becker, Senior Instructor
Hey Mike, hope you amd your family are staying safe
Hey Pico Boo, we're all good here, thanks! Hope you and yours are as well :)
Mike Becker, Senior Instructor
Great video, thank you! I love my AES Wave pocket scope with the amp clamp. I wasn't taught this trick in automotive school years ago so I was defenitly amazed when I learned how to do it. Think I saw it on Erics channel SMA.
Relative compression is an amazing test and such a time saver.
Thanks reaching out!
~Ryan
You had the scope out ready to go, so I would say that would add about 1.5 - 2 minutes. Still love the video! Cheers!
I think the hardest part of scope use is ease of access. My laptop - hantek/scope module 4 channel with all the leads and power supplies and cords and test leads used to make opt for the plug and coil swap. Until I got my autel scanner-scope tablet. So incredibly easy to use and set-up. Fits in a modified dewalt drill case. Leads in zip locks just like Mike said in earlier vids. If it's not easy to set up, you really don't want to use it.
So true Gunnar, has to be easy to get to!
Mike Becker, Senior Instructor
Relative compression is a great first step for any misfire complaint. Then onto the paddle probe for secondary, and an amp clamp to check the coil primary.
Hey Scott, thanks for watching! All great tests.
Mike Becker Senior Instructor
Good job sir.Many thanks for sharing troubleshooting.
stay home stay safe and care others.
Hey Nadeem, thanks for watching! All safe here, hope you're doing the same!
Mike Becker, Senior Instructor
Hands down, my favorite test! Thanks for sharing!
Hey Voltage Drop Diagnostics, thanks for watching! It's on of mine too. I really really love capturing an in-cylinder waveform though. I think that's my favorite test...but relative compression is up there on the list for me :)
Mike Becker, Senior Instructor
Yes brother love what you doing my favorite part is the compression test I does it a lot myself
Hey Antwon, thanks a ton! It's a fantastic quick and easy test.
Mike Becker, Senior Instructor
I do not does lol
More good stuff and good diagnoses.
Thanks Nigel!
Mike Becker, Senior Instructor
Thanks for the pleasant distraction,keep up the good work,and the videos coming 👍Stay safe one and all.
Thanks for watching! I plan on it. Setting up to do some filming while working from home :) You stay safe as well!
Mike Becker, Senior Instructor
Hi Mike! Glad to see you back! Hope all is well, keep up the good work! 👍
Hey Nick, thanks man! All is well here. I trust it's the same for you :)
Mike Becker, Senior Instructor
Nice quick efficient way to diagnose. Subscribed! Thanks to Keith D for pointing me to you site!
Awesome, welcome :) I'll thank Keith for sure!
Mike Becker, Senior Technical Instructor
Depending on experience and the vehicle, you could cut the diagnosis time even further by simply listening to the engine crank in clear flood mode (On a Honda though, you'd likely be better off pulling the fuel pump fuse to prevent the engine from starting). "No tools required" diagnoses are the quickest of all. Either way, the scope capture provides visual confirmation to the customer of the engine mechanical issue.
Hey Joseph, very true. An experienced ear can tell you a lot about what's going on. That's hard to share with a customer though. I'd prefer to show them the labscope capture and say "hey, see this? One's missing, there's your misfire" ;)
Mike Becker, Senior Instructor
Mike!!!!! Miss you buddy. I dont get notifications at all anymore since you changed to GoTech so I missed Februarys live class. I'll be looking April 2nd to see if you are live or not. I love that relative compression test. Just last week I bought all the adapters to run my scope attachments on the pico, the Uscope, and the dvom. Everything fits everything now. Hope you and your growing family are all doing well.
Hey Mike, sorry to hear you didn't get an announcement! As you can tell by now, no class today...i'm working from home. Sounds like you're all set up for some Grade-A testing! We are doing well...the little man's already 3 months old. Time flies for sure. Hope you and your family are doing well also :)
Mike Becker, Senior Instructor
Great again Mike I hope you and your family stay ok
Hey Pablo, thanks man! We are all good here. Hope you're the same!
Mike Becker, Senior Instructor
Thanks Mike! Great Team at Go Tech and Wells Vehicle Electronics
Hey Vince, thanks for watching and commenting!!!
Mike Becker, Senior Instructor
Great video as usual, thank you!
Hi mike , I've watched various videos of your and still enjoying.
Thanks for sharing
Thanks for watching and commenting James! Appreciate it :)
Mike Becker, Senior Instructor
Great video Mike I like a FLS in tailpipe cranking and running. Off the bat. Stay stay and well. Looking forward to more of your videos
Hey Mark, thanks man. Hope you and your family are doing well also. Tailpipe with the FLS is another good test, nice!
Mike Becker, Senior Instructor
Well done Michael Becker!
Thanks Mark!
Mike Becker, Senior Instructor
Hey Mike. Please stay safe with this corona virus. Love your channel.
Thanks Jeremy, you as well!
Mike Becker, Senior Instructor
Awesomw..short but imformative..thanks
Thank you very much!
Mike Becker, Senior Instructor
Great Video Mike. Learning the scope and what it can do will definitely add to the learning curve.
Hope you and your family are well and looking forward to the next video!
Hey Mike, thanks for watching! The scopes a powerful tool. We are doing well, thanks. Hope you and yours is as well!
Mike Becker, Senior Instructor
Well done good lesson Thxs again...
Thank you for watching and commenting Ed!
Mike Becker, Senior Technical Instructor
Thanks Mike, fast diagnosis Saludos.
Thanks Alvaro!!!
Mike Becker, Senior Instructor
Thank you, Mike, for your time and effort explaining such case study.
I have a question if you don't mind, and I'd grateful if you give me hint, link, or document to get more basis.
You said: broken plug (for not being torqued) causes internal damage to the cylinder/piston > leading to lean-burn condition. Why?
and why does lean mixture burn valve(s)?
Hey Ma ker, thanks for watching! Lean=hot. A lean burning engine will cause cylinder temp to increase. If the plug isn't torque, a/f mix can escape past the plug. The plug will get overheated because it's not secured in the head transferring heat. Does that explain it a bit?
Mike Becker, Senior Instructor
I thank you for your concern and reply.
1. I got this: when the plug is not torqued > mixture escaped, but why does the plug overheat then? (there is no combustion because there is no compression!)
2. I know that st. mix has the optimum comb. temp. and o/p power. By logic, if we enrich the mix > we got more fuel > higher comb temp, increased imep, and eventually more power. How lean mix do rich mix's job? correct me if I am wrong.
3. If I postulate that lean leads to more heat, why does it burn valves? what is the concept?
Thank you again, Mike.
Good info but a bit misleading Mike. With the scenario here, a seasoned tech would have known very quickly when starting the vehicle that there was a compression problem and you could likely skip checking fuel and ignition first.
Hey Frank, you're right. A seasoned tech may have picked up on it right away. But, a labscope picture is easy to show a customer. It's black and white for them.
Mike Becker, Senior Instructor
The quick & easy way to start a diagnosis! Great video Mike & tips! What borescope is that? I had my Snap-on wireless borescope but have used Olympus articulating borescopes for over 35 yrs on aircraft so I finally broke down and bought the Oasis Scientific Vividia D3245 USB 180 degree digital dual articulating 4.5mm borescope and feel at home again. Fantastic scope w/camera especially great in-cylinder articulation makes it such a pleasure to use and great detail!
Hey Bob, thanks man! Hope all is well with you. Saw the fishing pic's. Bet it was nice to get back out there. Yep, i'm using the Oasis Scientific scope. Fantastic tool!
Mike Becker, Senior Instructor
Great one Mike as always!
Hey Ismar, thanks!!!
Mike Becker, Senior Instructor
Love this! Great video Mike, stay safe bud!
Hey Mario, thanks a ton. You as well!!!
Mike Becker, Senior Instructor
Great vid, Mike! One of these days I'll pull the trigger on that Pico. Glad to see you're getting through this s-storm. Hope the family is well, too.🍻
Hey Smitty, thank man! It's worth it, for sure! All is well here, weathering the storm. Hope you and your family are doing well also!!! :)
Mike Becker, Senior Instructor
Great to see you Mike! Make a video with low cost eBay Scopes... That's all I will be able to afford
Hey Sakeenah Auto Solutions, thanks for watching!!! There's some lower cost Hantek scopes out there that a lot of people use. I've heard good things. Any scope is better than no scope :)
Mike Becker, Senior Instructor
The replaced plug and coil issue emphasizes the importance of thoroughly interviewing the customer as to the history of the vehicle, not that you should always trust them.
For the sake of discussion, I would suggest that the burnt valve may be the result of damage incurred prior to the valve adjustment. The ground electrode on the plug didn't bare the appearance of having been subjected to prolonged high temperatures associated with a burnt valve. They seem to often fail during a particularly long, continuous, high speed trip where a small leak would most quickly escalate to catastrophic failure.
Good video, Thanks.
Hey Fascist Pedant, a thorough interview is key!!! Could not agree more. If only every customer would tell the truth. You could be right. Unfortunately, there's really no way to know for certain at this point. It was almost 40k since the valve adjustment, if that offers any credence to this.
Mike Becker, Senior Instructor
Hi Mike I have a 95 G20 Chevy van air flow these not reach the drivers side vent any ideas thanks for the videos.
Thank you for the video. What brand is your camera bore scope? It sure has a better focus than mine and I'd like to get one this good
Awesome video Mike. Why don't you take the wiper cowl off to access that back coil?
Hey Jeremy, thanks!!! Sure, you could take it off, but time is money. That test would have been significantly longer had I pulled that off.
Mike Becker, Senior Instructor
Great video Mike. You should make a follow up video on how to setup the scope.
Thanks, that's a good idea!
Mike Becker, Senior Instructor
Great videos you put out!
Hey Johnny, thanks for watching!
Mike Becker, Senior Instructor
I've been watching /learning from your video, just purchased an Autel Ultra, now i'm trying to learn how to read waveforms and oscilloscope on sensors and engine related task, do you know where i can acquire best book or video to learn from? Thank you
Thanks.
Hey Manuel, thanks for watching!
Mike Becker, Senior Instructor
Great video.
Hey Mike, thanks man!!!
Mike Becker, Senior Instructor
I have found that most common problems are not mechanical but rather 1. Coil 2. Ground 3. Power 4. Spark Plugs 5. Injectors.
I agree, most issues aren't mechanical. But, a 4 minute test to prove it's not prior to do anything else is worth it...right?
Mike Becker, Senior Instructor
Some good information. Why beat upon people with some nasty rock and roll when they come to learn something?
Hey Caduceus33, thanks for watching!
Mike Becker, Senior Instructor
A clear flood cranking test would have proven a low compression cylinder without any equipment being used at all. Diagnosed in a matter of seconds . The cylinder number/s is irrelivant at the diagnosis stage.
The relative comp test is great and so is the bore scope but for further diagnosis a leak down test next would condemn any other cylider/s that may be lower than expected and the fault would be easily found.
Heard that ac coupling a channel to the battery terminals can have same results as with the amp clamp. So even faster in setup.
Sure, you guys use voltage to see it. I find it's messier though because of the other loads on the engine that may be present when cranking. I prefer current.
Mike Becker, Senior Technical Instructor
Thanks Mike! see you in the next one :D
Hey Kosta Dinos, thanks for watching! See you then :)
Mike Becker, Senior Instructor
I dont go for the labscope first to pinpoint a misfire.... if i suspect low compression i do a clear flood crank and listen to the engine,99 percent of the time you will hear it.And if it happens to be a cylinder under the intake im pullin it anyway to do a leakdown.Now i could see the value in that test if you had a misfire without a code that was due to low compression and you wanna know what cylinder is low in case its under and intake or not so you dont waste time.
It's been proven time and time again. A good cranking amperage test doesn't guarantee good mechanical integrity, much less a clear flood
Hey Jmccoy85, a trained early takes time. Not everyone can hear it either, especially a customer. I prefer to capture with the labscope and show them point blank that it's going to be a bigger job than what a simple misfire may normally be. This way, even for someone who's never seen a labscope before, it's plain as day. One of these things isn't like the other...haha!
Mike Becker, Senior Instructor
Have. 14 equinox 2.4 with a misfire. All new timing crank sensor mass air fuel pumps. Runs good till u get to a stop light. Then jurks alot. Increase rpms smooths out. Any ideas
Hey Mike - While it was faster [in this case] to do the cranking/scope test, the swap test would have stopped and directed you to a potential mechanical issue when you pulled the #1 plug and found the physical damage to it. I realize you did not know this beforehand. I'm not arguing here - a cranking test, to start with, would have led to a #1 cylinder issue and then resulted in the finding of damage to that plug. What I am saying is: if the vehicle was equipped with a coil over plug system [COP], easily accessible from the top, a coil swap may be faster [and a Tech would not need a 'scope [$$] to perform.] If you are faced with a rear bank misfire on a transverse V6, I agree that the making a cranking/scope test the test of choice would be faster in eliminating or verifying an compression/mechanical issue and on what [verifying on which] cylinder(s) the misfire was occurring on. In an easy to access a COP engine, the swap coil test maybe more efficient. Perhaps another video like this comparing the same approaches, but using a COP 4 cylinder engine? Thanks for hearing me out.
Hey, Thanks for watching! In this case, the customer changed out the coil and plug prior to bringing it in. He didn't inform of this until after I called and told him what was wrong with it. Happens far too often. Anyways, sure on a 4 cyl with the coils on top it may be quicker to switch. But there's issues with switching coils around too. Shorted coils could kill a PCM driver.There's a lot of variables.
Mike Becker, Senior Technical Instructor
@@GoTechTraining Good points, Mike. Thanks for your comments!
Thank you for questioning! I may actually do a video describing the downsides of coil swapping now!
Mike Becker, Senior Technical Instructor
@@GoTechTraining Regardless, do keep these videos coming!
@@GoTechTraining On the other hand, if the coil is prone to burning drivers it would likely burn the OG driver. If one's blown, you'd might as well burn them all.
Good Show, Mike :) Other than what you demonstrated, this cd be a case for having a camera record every job? Like, what if, a client doesn't admit to doing his own work, after you? You cd replay your record, when necc?
Thanks Leslie!!! Documentation is key. Not sure you need to record the job...but overall documenting is key.
Mike Becker, Senior Instructor
@@GoTechTraining Thanks for your attention :) I'm not sure how documentation would stand up against a claim, without vid evidence? While you're there, have you done auto trans vids?
Hey Mike, what state are you located in? You are really thorough and competent!
Hey Orin, I'm in Wisconsin, you? Thank you for that!
Mike Becker, Senior Instructor
Hey, fellow Wisconsinite (Green Bay) here. Thank you Mike for all the great content. Your info has helped me solve multiple issues on my personal vehicles.
Thanks again..
Makes you wonder who changed that plug. It had to be fine when it left your garage after the valve adjustment and I think I recall you doing a timing belt on it too, no?
Hey, yep, I did the timing belt too. The customer installed his own plugs...by his own admission. Which is always a deep exhale when I see a vehicle come in that I worked on previously, right!?
Mike Becker, Senior Technical Instructor
@@GoTechTraining Yeah, that's a hard lesson. It can happen to anyone. Even faster check is to listen to it crank...were you tipped off by the way it sounded when it cranked? I don't think Honda has a clear flood mode.
Right, no clear flood on there. I agree, listening to it crank is faster but that's a learned thing and hard to show a customer. This way, I show him a screenshot of the capture and what's missing. It's plain as day even for someone who's never seen a labscope capture. A pictures worth a thousand words, or RPM's in this case ;)
Mike Becker, Senior Technical Instructor
It’s a great argument but you already had the scope ready as for many wouldn’t event know where to begin
Hey JB_BMW Repairman, I keep my scope in a box. All I did was unbox it. I only hooked up one channel. Not much to get ready really. Hopefully this gets people to unbury their labscope and put it to use :)
Mike Becker, Senior Instructor
Last time I had a bunch of different misfire codes on my 99 Honda Civic EX, as in multiple cylinders, random misfires, I ended up doing a full tune up on it including valve clearances for nothing. The codes kept reappearing over and over again until that same tank of fuel was gone, and we refilled the tank at our usual gas station. (The wife was in a hurry one day and decided to try a cheap gas station on the way to work. Argggh!) Well, the car was approaching 75,000 miles so it wasn't a bad thing to do a tune up, but really! Is there any moderately priced and/or cheap test kit available to determine if your tanks gasoline quality is an issue? Thanks!
Mark, ugh fuel issues can be such a headache! The only fuel testing that I do is water/ethanol. You pull fuel out and make 10 separate lines, once it settles if its standard E-10, you should see on line of water with 9 lines of fuel above it. I've done it in just about everything, including a water bottle when I was in a pinch haha!
Mike Becker, Senior Instructor
Question for you Mike eat all watching I am a DIYer and am trying to broaden my skills in the automotive realm and for the life of me can’t figure out the realities compression test, does this just involve the amp clamp and the scope or do you need a pressure transducer or am I just mixing up two different test? I have acquired the two channel pico scope which I think will accomplish most of what I need plus a 60amp amp clamp. Would this be enough to perform this test? Sorry for the beginners questions but I really want to learn more I find it so fascinating.
Hey John, you would use an amp clamp around the battery cable. You goal is to measure current leaving the battery powering the starter. You'll want the big clamp for this. 200/2000amp clamp is what I use. No worries on the question man, that's how we learn! :)
Mike Becker, Senior Instructor
GoTech oh, I have a amp clamp with digital meter attached can they be used on a scope? I am not sure what the difference is with one without the digital readout to one that doesn’t have it.
Have you ever seen a misfire cause a negative fuel trim? You stated a lean condition resulted from the misfire?
Hey BB MD, that's a tricky question. There's a ton of 02 in a misfire. Theoretically I think under the right conditions you could end up with a negative trims, but it's not as common.
Mike Becker, Senior Instructor
SUBSTANTIAL Go Tech Mike Becker
Brilliant video tutorial amazing thank you for sharing what you know with us Go Tech Mike Becker
From Nick Ayivor from London England UK 🇬🇧
Hey Nick, thanks so much!!!!
Mike Becker, Senior Instructor
Saludos maestro
Muchas gracias...my Spanish is horrible, sorry!
Mike Becker, Senior Instructor
The piston rings are fried. Theres a TSB on those vehicles. Comp test showed a weak cylinder.
Hey C00l3zt, isn't that on the newer models or did 06 have the same issue?
Mike Becker, Senior Instructor
Determining the fastest way also depends on the tools you have available.
Hey, yeh I suppose it does.
Mike Becker, Senior Instructor
My friend, I want a book explaining car faults, a program, or a site that makes it easy for me to read faults and explain them with pictures or videos from your problem, brother
Looking at getting pico to go along with my Snap-on Zeus!! What do you recommend... the pico 4 channel or the new 8 channel????
Hey BiggSexxyRobb, the more channels the merrier! lol Seriously though, if cost weren't a factor I'd suggest everyone gets the 8 channel....but the 4 channel will do probably 90% of what you need.
Mike Becker, Senior Instructor
GoTech The cost isn’t a factor for my situation! I was given some info recently that the 8 channel was never meant to be for the automotive side and that it’s been lightly converted over and that is why it doesn’t have connect detect and higher voltage protection and requires more attenuators along with some other stuff. I just want to make sure I invest my money right so a year from now I don’t regret spending $7000 on the master kit
What’s the part# or brand for borescope.?
Been looking for one that bends upwards
Thanks mike
Hey Uneek Logik, that one is sold by Oasis Scientific. I'f I remember right it's called the Vividia Ablescope. Google it, i'm sure you'll find it!
Mike Becker, Senior Instructor
Thanks again
The one I have is the Oasis Scientific Vividia D3245 USB 180 degree digital articulating 4.5mm borescope. Stick it in the sparkplug hole and rotate the control knob & it rotates the head 180 degrees to look back 180 degrees...fantastic USB borescope!!
Good vids but surely a good old fashioned mechanical compression test gauge would of showed that fault up in if not the same time or less
Hey Dave, thanks for watching. Sure it could have. But what would have led you to sticking it in the hole? Surely it's not your first step, right?
Mike Becker, Senior Instructor
GoTech I would of obviously checked for electrical faults first and rectified if any found before continuing the diagnosis and I do agree the picoscopes are a very good tool when used correctly but being based in the uk although they are becoming more common it workshops/garages not a lot of people have access to them and not all diagnostic scan tools have an oscilloscope function which is a shame but we have to work with what we have got but great informative vids keep up the good work
Mike is your tech college located in Maine?
Hey Richard, i'm located in Wisconsin.
Mike Becker, Senior Instructor
Hii pls what diagnostic tool are you using?
Hey Okpara, i use a Snap On Verus and Autel Maxisys Elite.
Mike Becker, Senior Instructor
What brand/model bore scope did you use in this video?
Hey Chris, thanks for watching! Check out Oasis Scientific. It's a Vivida Ablescope.
Mike Becker, Senior Instructor
@@GoTechTraining thank you for taking the time to reply!!
@@chrisjohnson3767 For sure man! I try to get to all of them...I miss some, but I do what I can. Definitely check that scope out. It's a great tool...I just used mine tonight :)
Mike Becker, Senior Instructor
I ordered one yesterday morning!!
Cadence while cranking the engine is my first test.
Hey Lester, that's a great test. It is also something that takes a little bit of training/experience to get right. But once you have it its a super valuable tool!
Mike Becker, Senior Instructor
What brand is that borescope?
Hey, check out Oasis Scientific. It's the Vividia Ablescope if I remember right. I don't recall the exact model number.
Mike Becker, Senior Instructor
👍👍
Hey man, seems like it's been a while since we've had a comment from ya! Hope all is well :)
~Mike
what if i have a p0172 and p0175 on my 06 honda pilot ?
So you're seeing rich codes on there...i'd take a look at the valve adjustment on there for starters. I have a video on that.
Mike Becker, Senior Instructor
Can the mt2400 handle this test?
Hey Rusco321, sure I don't see why not. As long as you have the proper current clamp.
Mike Becker, Senior Instructor
@@GoTechTraining Ok, I'll give it a whirl.
What scope is that??
Hey Vencent Bauer, it's made by Oasis Scientific. I think it's called the Vividia Ablescope. A Google search should find it.
Mike Becker, Senior Instructor
Mike you diagnosed that car faster than you could iron your shirt.
Ugh, just had to call me out on that one, huh!? haha!
Mike Becker, Senior Technical Instructor
@@GoTechTraining of course, what are friends for. 👍🤣👍
You know it!
Mike Becker, Senior Technical Instructor
Air won’t blow out of 2011 Nissan sentra SR
Mann, y'all go make me get a PICO
It really is a fantastic tool Black. Your tool box deserves one :)
Mike Becker, Senior Instructor
You have a phone to call you or some mail that can contact you
Sure, Francisco. You can email me at Michael.Becker@wellsve.com
Mike Becker, Senior Instructor
Et. All sorry not eating anything lol
Well why not!? It's lunch time! hahah!!
Mike Becker, Senior Instructor
Don't understand why your videos are about cars from 14 or 15 years ago instead of modern cars up-to-date cars who has a car from 15 years ago
Hey, thanks for watching. Old cars break. Tons of people still drive them. The average vehicle life is over 10 years old today. That's the oldest it's ever been. People are hanging onto 15 year old cars more today than ever before.
Mike Becker, Senior Instructor
Куча не нужных действий, оборудование отстой, все гораздо проще, и самое главное быстрее.
Don't understand why all these channels are automotive have one car that sits in the garage the whole day and you make a video on it my brother works in a dealership there's 12 cars a day nobody has time to make a video I guess all these channels need some business
Quick and sweet. Thanks for sharing and providing great content.
Hey, thanks for watching!
Mike Becker, Senior Instructor