I am impressed with your dedication to problem solving and integrity. You and your shop are a shining examples of customer service. Your customers are at your mercy in that they don't know what the problem might be. They have yo trust you. And you live up to that trust. You give it your all. And that's a lot, given your experience, intellect and integrity. Your customers are lucky to have you looking after their cars. And we are lucky to have you sharing your knowledge and values with us. I wish you the very best, sir.
I compliment you on your descriptions & the reasoning for your diagnostic procedures. Your video is of immense help for those who are not very well skilled in electrical troubleshooting. Well Done!
I know you were so relieved when u found the issue lol. But this is probably the best diagnostic videos out here. You stayed consistent with the information u had. This video has def changed how I troubleshoot. THANKS
Great video! I love troubleshooting wiring problems. I worked at new car dealerships for over 30 years. You might be surprised to know most techs don't know how to use a scope or troubleshoot. The dealer usually has one trained diagnostic tech. and the rest are just parts replacers. Enjoyed the video.
I wish more mechanics agreed with your methods. Especialy in dealerships they just throw parts at the problem instead of cleaning, repairing, or restoring. I'm sending the link to this video to my friends. Awesome Video!
Your information and videos are very well worth the time I spend watching.. I appreciate very much the time you take making them. I purchased your pedal pumper tool as a way to thank you.
Thank you very much for putting these videos out there. Such a great help to us younger technicians. I learned so much from this, seriously. It's amazing how we can find such great info available right there! I need to remember to have that detective mentality, I love how you mentioned that we don't want to convict someone until we have enough facts to have proof. Thanks again :)
Excellent diagnosis I learned that what you said at the end of the vid makes a whole lot of sense, I think it's having patience that counts because this can wear you down!
Brilliant video .....I really enjoyed watching your fault finding procedure ...Its the engineers like you with your perseverance that clear up the difficult problems and others can benefit ...Well done
This is a classic demonstration showing the difference between a 'fitter' (of parts), and a mechanic. The latter diagnoses and repairs and can apply problem solving techniques to any situation. Unfortunately, these days, they are a rare commodity. My guess is that a 'fitter' would replace the coolant sensor, then the computer, then the wiring loom before getting to the bottom of the problem - and the customer would have a far higher bill. Nice work!
gracias por todo su voliso tiempo y sus conocimientos, por que hay personas que valoran su esfuerso y su dedicasion, GRACIAS ATODOS los que hacen posible estos videos
This was my car that I was having problems with. Thanks to my boss Dwayne we figured this out. If I would have taken this to the dealer it would have cost me about 6 hours in diag time plus the fix. This is why we stayed with the issue and didnt give up.
Nawton1 - And... dealer, among other repair places, would've often times charged cust for a computer, car would've been right back and cust charged again for smthn else, then, eventually, cust poss sells or parks car & buys another vehicle! Just gives up out of frustration.
Very dedicated in finding the problem. You did a lot more work at finding the problem than most would do!! Good work. Price for parts........10 cents. Price for time and labor...........$275.00
Industry standard of a flat rate technician would barely be able to pull up a wiring diagram let alone a fix. Lol. Great video. I hope you are paid by the hour
@Colombianfunk I have been a certified tech for 45 years. The common problem is that the customer does not want to pay for your diagnostic time. As you see in this video, It can be a long tedious task to diagnose an intermittent problem. I think ALL customers should see this video. Thanks, Bill
boaterbil - Exactly! They want to pay you 5 bucks to put a butt connector on! Literally! And get pissed off when u say NO and charge for 4 or 6 or 8 or whatever amount of hours. Even if ended up costing 300 bucks for that "butt'" connector, that's still a hell of a lottttt less than another vehicle! Soooo, custs should be afforded the option BEFORE we start. "Mr/Mrs cust, this prob wasn't corrected with a flat rate cts replacement job so its going to have to go into "hourly rate mode" to try to fix it right, will this be approved by you, or not? We promise to do the best we can on price when completed!" THEN it's on them, not us, therefore we don't get screwed with "flat rate" bs on a lot of jobs anymore!
Thank you I'm having a similar is due except no communication to OBD II unfortunately I replaced the Computer because in Selkirk NY where I'm at not one mechanic I found wi work on a Chrysler I've been turned away from at least 15 mechanics so I'm trying to do this on my own welcome to th capital if NY such pride they have but not much mechanic knowledge I'm ready to come up wit a phobia name for them for Chryslers not wanting to work on them I'm leaving us hanging out high and dry!
its an amazing video. you can probably do this with out a lab scope. all you would need is a DMM. Check ohms at the sensor then check for ohm from wiring to the computer. The scope does help a lot though.
Sad part is this was would only happen on hard acceleration. Weird but that is the only time it ever showed up. I know this as a fact because that was my car. 2000 Pontiac Grand Prix GTP. No mods or anything it just broke the wire for some reason in the harness going to the ECM in the air box. Dont know how it happened but it did. Glad we found this after 2 days.
First rule before any diags, "THOU SHALL CHECK ALL VOLTAGES !" this one rule will save you alot of time. Is ground present and steady? Is the ref voltage present and steady? If yes, then look at the signal from the sensor. The sensor can not function without the Vref and a good ground.
Your troubleshooting methods are so much like mine that if your shop was around where I live, I'd come and work for you in a second even if it meant takin a cut in pay.
man this is the best vedoe so far!!!!!!!!!!!!!!!!! your the man!!!!! wish i could work at ur shop and learn from u i have a 2002 ford focus 1.8 sohc keep getting this P0720-P0721 and P0722 all about the out put shaft speeed sensor. also the speedometer comes and goes intermittent. not to mention that the transmission ocassionally shifts to neutral while driving and wont kick back into gear unless i sow down to atleast 20mph. please help
A lot of customers throw a bunch of parts,and when it don't fix car they expect us to diagnose it for free because they already spent a bunch of money in parts.I have repaired a lot of cars and wiring fails before sensors.Diagnostics are not as tangible as parts replacement to the customer.
funny that you mention this I worked for toyota and our robots are mostly from japan.. While processing some of our fastest parts even our robots wiring has litterly melted apart. nothing like stopping a 60 million dollar machine because a 100k dollar robotic arm's company used to thin of a wire.. even during usual speed the main power wire would gain like 40 degree F...
Good work. BUT WHY did that yellow wire have such a clean cut. Its certenly not brocken from over flexing (wiguling). CAN YOU TELL ME WHAT HAPPENED TO THAT YELLOW WIRE.
'Lume' mentioned a couple of times after 16:00- I think you meant to spell 'loom'. Thanks for sharing your depth of knowledge with this ASE Master & L1.
when it comes to throwing a part at it and that part is $500+-$ you should always check voltages and wireing continuity it has been my experience with my car that it is generally 1st bad conector, 2nd bad sensor, 3rd bad wireing. Unless you had some electrical failure like a regulator that shot pure alt. voltage through your system, happened to me once, or you connect your battery backwards because the new ones posts were swapped then your componants/computer should be OK. just my exp.
If Dragon Speaking were hooked up to the onboard computer. The computer would tell you where it feels the problem is. Codes are cool, but time consuming. GM is working to fix the code for rear-ending a semi trailer at 40 mph. The A-pillars have to be immensely strengthened. Until then I will stick with my trusty dog sled team.
I have an intermittant problem on my 1998 Buick century 3.1l and not getting any CEL light/code. What or where do I look for a place to diagnose using a a lab scope? I live in Mesa Arizona.
@realfixesrealfast thanks, now i just got to find one somewhere,maybe you could do a video on it sometime that would be great, by the way great videos.
The wire insulation piercing test probes at 11:12, did you get those off the Mac truck? If so, could you give me the tool number please. I know Mac makes screw-in insulation piercing test probes but my Mac man can't find the tool number for them.
it was probably a "stress" break. Or, on other words, a weakness or defect in the wire that broke due to possible vibration over a long time finally failed.
I am impressed with your dedication to problem solving and integrity. You and your shop are a shining examples of customer service. Your customers are at your mercy in that they don't know what the problem might be. They have yo trust you. And you live up to that trust. You give it your all. And that's a lot, given your experience, intellect and integrity. Your customers are lucky to have you looking after their cars. And we are lucky to have you sharing your knowledge and values with us.
I wish you the very best, sir.
Thank you. I appreciate your comments, and you taking the time to send them. You are why I do this.
I compliment you on your descriptions & the reasoning for your diagnostic procedures. Your video is of immense help for those who are not very well skilled in electrical troubleshooting. Well Done!
I know you were so relieved when u found the issue lol. But this is probably the best diagnostic videos out here. You stayed consistent with the information u had. This video has def changed how I troubleshoot. THANKS
Great video! I love troubleshooting wiring problems. I worked at new car dealerships for over 30 years. You might be surprised to know most techs don't know how to use a scope or troubleshoot. The dealer usually has one trained diagnostic tech. and the rest are just parts replacers. Enjoyed the video.
I wish more mechanics agreed with your methods. Especialy in dealerships they just throw parts at the problem instead of cleaning, repairing, or restoring.
I'm sending the link to this video to my friends. Awesome Video!
Your information and videos are very well worth the time I spend watching.. I appreciate
very much the time you take making them. I purchased your pedal pumper tool as a way to thank you.
Thank you very much for putting these videos out there. Such a great help to us younger technicians. I learned so much from this, seriously. It's amazing how we can find such great info available right there! I need to remember to have that detective mentality, I love how you mentioned that we don't want to convict someone until we have enough facts to have proof. Thanks again :)
Excellent diagnosis I learned that what you said at the end of the vid makes a whole lot of sense, I think it's having patience that counts because this can wear you down!
I may have said this before but it bears repeating, I would be honored to have this guy come anywhere near my car.
I am grateful every time I see your videos, things that only your many years of study and experience can explain thanks
Very informative. Will definitely use a similar technique next time I'm hunting down an intermittent. Thanks for the video
Brilliant video .....I really enjoyed watching your fault finding procedure ...Its the engineers like you with your perseverance that clear up the difficult problems and others can benefit ...Well done
Great video, I enjoyed seeing the whole process of diagnosing this problem.
Thanks!
This is a classic demonstration showing the difference between a 'fitter' (of parts), and a mechanic. The latter diagnoses and repairs and can apply problem solving techniques to any situation. Unfortunately, these days, they are a rare commodity. My guess is that a 'fitter' would replace the coolant sensor, then the computer, then the wiring loom before getting to the bottom of the problem - and the customer would have a far higher bill. Nice work!
gracias por todo su voliso tiempo y sus conocimientos, por que hay personas que valoran su esfuerso y su dedicasion, GRACIAS ATODOS los que hacen posible estos videos
It make's us feel great to find intermittent problem's like this! This is why you get paid for what you know! This is MASTER TECH / L1 WORK!
The world would be so much better if everyone was more like Dwayne! He's awesome!
I like this guy. He is very thorough. I like the "finding the active short video" both very good.
THANK YOU !
this is very, very, very ,interesting and instructive.
This was my car that I was having problems with. Thanks to my boss Dwayne we figured this out. If I would have taken this to the dealer it would have cost me about 6 hours in diag time plus the fix. This is why we stayed with the issue and didnt give up.
Nawton1 - And... dealer, among other repair places, would've often times charged cust for a computer, car would've been right back and cust charged again for smthn else, then, eventually, cust poss sells or parks car & buys another vehicle! Just gives up out of frustration.
If it was me i would be mad for the $ bill for a broken wire.
But as a mechanic proud that i fund the problem.
Thanks for the Info and vid
Very dedicated in finding the problem. You did a lot more work at finding the problem than most would do!! Good work.
Price for parts........10 cents. Price for time and labor...........$275.00
Thank you for your diligent troubleshooting!
nice way you tracked that one down, I have seen wires that looked fine until you turned them over and the whole back side had been worn away!
wonderful video thanks for taking the time to share with us
Nice video. Well put together. Thanks for compiling it.
U are a good diagnostic tech thanks for sharing experience !
I`m sure a lot of people would like to have you as their mechanic :) Including me.
Industry standard of a flat rate technician would barely be able to pull up a wiring diagram let alone a fix. Lol. Great video. I hope you are paid by the hour
Very thorough diagnostic work! Thanks for sharing.
Engine light
Precious videos you've uploaded. Like gold for me
woohoo, I hope when I am Mr. Duane's age I could work like him and still keep going.
is always a pleasure to see your videos 👍
You guys are awesome, I wish I lived around you all.
good speach to the backyard mechanic or part changer shop all over.
Mr. Duane you are a true Master Technician...
@Colombianfunk I have been a certified tech for 45 years. The common problem is that the customer does not want to pay for your diagnostic time. As you see in this video, It can be a long tedious task to diagnose an intermittent problem. I think ALL customers should see this video. Thanks, Bill
boaterbil - Exactly! They want to pay you 5 bucks to put a butt connector on! Literally! And get pissed off when u say NO and charge for 4 or 6 or 8 or whatever amount of hours.
Even if ended up costing 300 bucks for that "butt'" connector, that's still a hell of a lottttt less than another vehicle!
Soooo, custs should be afforded the option BEFORE we start.
"Mr/Mrs cust, this prob wasn't corrected with a flat rate cts replacement job so its going to have to go into "hourly rate mode" to try to fix it right, will this be approved by you, or not? We promise to do the best we can on price when completed!"
THEN it's on them, not us, therefore we don't get screwed with "flat rate" bs on a lot of jobs anymore!
Thank you I'm having a similar is due except no communication to OBD II unfortunately I replaced the Computer because in Selkirk NY where I'm at not one mechanic I found wi work on a Chrysler I've been turned away from at least 15 mechanics so I'm trying to do this on my own welcome to th capital if NY such pride they have but not much mechanic knowledge I'm ready to come up wit a phobia name for them for Chryslers not wanting to work on them I'm leaving us hanging out high and dry!
its an amazing video. you can probably do this with out a lab scope. all you would need is a DMM. Check ohms at the sensor then check for ohm from wiring to the computer. The scope does help a lot though.
Sad part is this was would only happen on hard acceleration. Weird but that is the only time it ever showed up. I know this as a fact because that was my car. 2000 Pontiac Grand Prix GTP. No mods or anything it just broke the wire for some reason in the harness going to the ECM in the air box. Dont know how it happened but it did. Glad we found this after 2 days.
First rule before any diags, "THOU SHALL CHECK ALL VOLTAGES !" this one rule will save you alot of time. Is ground present and steady? Is the ref voltage present and steady? If yes, then look at the signal from the sensor. The sensor can not function without the Vref and a good ground.
People like OJ Simpson fear the thought of you ever becoming a detective. Lol That was a great job.
Great deduction Holmes. 👍
You're a great mechanic.
Nice video , instructive , conclusions back up with evidences , great.
Your troubleshooting methods are so much like mine that if your shop was around where I live, I'd come and work for you in a second even if it meant takin a cut in pay.
Great video, great troubleshooting, keep up the great work.
man this is the best vedoe so far!!!!!!!!!!!!!!!!!
your the man!!!!!
wish i could work at ur shop and learn from u
i have a 2002 ford focus 1.8 sohc
keep getting this P0720-P0721 and P0722 all about the out put shaft speeed sensor.
also the speedometer comes and goes intermittent. not to mention that the transmission ocassionally shifts to neutral while driving and wont kick back into gear unless i sow down to atleast 20mph.
please help
Good job fixing it without unneeded parts
wow very profetiona you guy are great thank you for these tip
THANKSSSSSSSS
More than excellent.
A lot of customers throw a bunch of parts,and when it don't fix car they expect us to diagnose it for free because they already spent a bunch of money in parts.I have repaired a lot of cars and wiring fails before sensors.Diagnostics are not as tangible as parts replacement to the customer.
funny that you mention this I worked for toyota and our robots are mostly from japan.. While processing some of our fastest parts even our robots wiring has litterly melted apart. nothing like stopping a 60 million dollar machine because a 100k dollar robotic arm's company used to thin of a wire.. even during usual speed the main power wire would gain like 40 degree F...
Nice video that was great and very educational.
Good work. BUT WHY did that yellow wire have such a clean cut. Its certenly not brocken from over flexing (wiguling). CAN YOU TELL ME WHAT HAPPENED TO THAT YELLOW WIRE.
Dwayne is in the wrong job!!!!!!!, Nasa needs him!! great video as always
'Lume' mentioned a couple of times after 16:00- I think you meant to spell 'loom'. Thanks for sharing your depth of knowledge with this ASE Master & L1.
Very nice video once again!
great videos I have been needing to brush up on all this :)
That was an awesome video, very informative!
when it comes to throwing a part at it and that part is $500+-$ you should always check voltages and wireing continuity it has been my experience with my car that it is generally 1st bad conector, 2nd bad sensor, 3rd bad wireing. Unless you had some electrical failure like a regulator that shot pure alt. voltage through your system, happened to me once, or you connect your battery backwards because the new ones posts were swapped then your componants/computer should be OK. just my exp.
Yeah i'd like to know how that wire got severed. Looked like someone took snips to it.
My dear sir you are my teacher...
If Dragon Speaking were hooked up to the onboard computer. The computer would tell you where it feels the problem is. Codes are cool, but time consuming. GM is working to fix the code for rear-ending a semi trailer at 40 mph. The A-pillars have to be immensely strengthened. Until then I will stick with my trusty dog sled team.
Champion well done matey
I have an intermittant problem on my 1998 Buick century 3.1l and not getting any CEL light/code. What or where do I look for a place to diagnose using a a lab scope? I live in Mesa Arizona.
Great troubleshooting.
Nice fix! I hate trying to find intermittent wiring problems. Kinda odd (to me any ways) that the computer is inside the air box.
man i want that scanner
Great video, awesome skills
i see you have a teslite tool, the yellow lead that you were probing the ecm connector with. Do they work like they are supposed to?
Thanks.
Another great video!
I have a 2004 sabb no start no cranck n no lights nowhere can fine the problems. Can u help me?
great video.
amazing content keep it up please :)
That was really good!
so how much what the charge because you didnt charge for the ecu but the labor fee must have been there the roof
"Finding an intermittent"
I looking forward to Episode - II -
;-)
love it
great video!
@realfixesrealfast thanks, now i just got to find one somewhere,maybe you could do a video on it sometime that would be great, by the way great videos.
The wire insulation piercing test probes at 11:12, did you get those off the Mac truck? If so, could you give me the tool number please. I know Mac makes screw-in insulation piercing test probes but my Mac man can't find the tool number for them.
What I'd like to know is how does a wire buried in an air cleaner break like that.
another great video!!
This is what I do every day
Tom
Great vid thanks
Really good vid! Thanks!
I HATE FLAT RATE! (and love it too sometimes) IT'S A LOVE/HATE RELATIONSHIP! (kind of like me & my ex)
Great. Thats how u do it.
wow, how does that even happen? That wire looks like it was cut!
Shoot can't imagine diagnosing that problem in my backyard with a voltmeter and a cheap test light.
thx for sharing sir
How much do you all think it cost to troubleshoot a job like this?
good video
Can you offer an explanation for the singular broken wire in the loom?
it was probably a "stress" break. Or, on other words, a weakness or defect in the wire that broke due to possible vibration over a long time finally failed.
How long did it take to find the cause of the problem?
@jtech23 yes, they work great
No. I work on American, German and Asian.
@realfixesrealfast thanks, now i just got to find one somewhere, by the way great videos.
How much did you charge for labor?