Check out my website ; www.diagnosedan.com For DDTSB visit DDTSB.COM For the Topdon tool used in the video: US : www.topdon.us/collections/professional-series/products/phoenix-max UK : www.diagnosticconnections.co.uk/ EU: eu.topdon.com/products/phoenix-max
Very interesting diagnosis as always. I’m trying to understand how a loose chain would cause timing to advance. Wouldn’t skipping a tooth cause timing to be retarded thus causing the exhaust valve to close later rather than sooner? Could it be that the pressure bump is caused by the intake valve opening too late? I believe I read somewhere that some engines send a brief pressure pulse into the intake runner to create a shock wave in order to improve cylinder filling during the intake stroke. Thank you.
@@frankp.2831I'm interested to hear the answer for this question too and also how much longer that old chain was compared to new one? Great video as always👍🏼
Not hard at all. Every rise on the waveform indicates a rise in pressure. That little hump was in an area where it should've remained level. Meaning that the piston was on its way up when the exhaust valve closed a little to soon
@@frnkjones40 But, no one else was able to explain it in such a clear concise way - I watched other videos and was not clear on exactly what to look for. This was excellent... Dan's approach makes it so much more digestible.
@@Diagnosedan Don't sell yourself short - it's easy for you now, but first time you come across it, you need someone who can explain the concept clearly - I have not seen anyone else do a good a job at it as you have.
Great to see you again sir !!! - This is a VERY COMMON issue here in the US with Audi. I always use the CMP / CKP Sensor Correlation data and waveform as my initial assessment with that code.
😊 thank you for another wonderful video. Thank you for giving us the extra knowledge of trying to diagnose the vehicle with the proper tools 10 out of 10.
It's a rainy, miserable day and I was bored out of my tree, so it was perfect " timing " that you just loaded this video. As you said this was not an exhausting task at all. Cheers from Canada
😂 always appreciate your work. I can honestly say that I don’t know of any channel that does such a complete presentation on vehicle electronics. Plus the bloopers are an added bonus…
We missed you Dan....! Thanks again for the excellent diagnostic lesson. Always amazing and educational. Nobody does it like you do. Thanks again Professor..
Kudos to Dan...two things: 1) when scan tools first came out, very few mechanics could look at a waveform and understand what it was trying to tell them. That second pressure hump pointed a big finger at the problem. 2) It would have been nice to see the old chain stretched out next to the new one on the table. Amazing that a tiny bit of wear on each link would add up to so much stretch.
Nice to see you back Dan. These engines are very prone to timing chain slipping if the engine is turned over backwards. Not a good thing if you park in a forward gear facing up hill. ;-)
Thank you for creating such great content. You are not just an excellent technician but a great teacher as well. I bet you learn even more after teaching us on RUclips🤝🏻
I've been looking forward to your new video! I thought ahead about how to discover if the chain was stretched, but had no idea about this method. Very enlightening. Thanks, Dan. Your videos are invaluable.
Appreciate all your videos. By the way I’m on my second year of subscription to DD tsb. Absolutely first class.It’s got me out of trouble so many times 👍
Whatever you've done in the edit with regards to noise cancelling the engine but at the same time maintaining clear commentary is second to none. So good I nearly didn't notice!
Dan looking like he's on a good health regime - slim and trim. You would think that car manufacturers would have a timing chain sensor to alert the driver with a Check Engine light when the chain guides pass their maximum tension measurement. That would save on a lot of diagnostics!
Than you Dan for sharing valuable information with us! We have VW dealers that are not this good in diagnosing as you and are more keen on stealing, what a shame.
Good research and repair process. Also, NO colatteral damage and a cleaned engine that removed all "finger prints etc". Customer should get some refunds from the other shop too.
Love your in-depth diagnostics. These days it's hard to locate a shop that will take the time to do it correctly. Also like your bloopers. Funny Dude!!!
I'd be curious to know what parts the other shop mistakenly replaced. There are so many cases where another shop completely misdiagnosed a problem and replaced and billed for parts that did not need to be replaced.
Your the man Dan. I just fixed/repaired my first BMW. No crank, no start.don't have a scanner that can talk to the BMW, so I had to relye on utub. Did a bypass on the immobilizer to verify that the starter worked. Then found fuse #30 was blowing. Utub to the rescue, said check out the oil sensor level sensor. Found a wire bare at the 90• coming out of the sensor. Tape it up, did not reconnect to the sensor, costomer request.the car is no😅 doing fine. 325ci.
I love all your vids Dan, they have taught me alot. But on this one I don't understand why you reached for all the sexy toys when a quick removal of the camshaft end caps would have revealed the grooves on the shaft ends not lining up. Or have I missed something? Keep up the great work!
Yes let me explain the point of the video. I work on all brands, all engines, this method is universal for all engines. Generally timing an engine mechanicly requires quite some disasambly. And you need timing tools for all makes and models even when you might not need them. This method is fast on all engines 3-6-8 or 12 cilinders doesn't matter.
Those polos with the 1,2 are notorious for stretching chains, I knew instantly that it would be stretched chain when I saw it. I tend to advice people to stick to the 1,4 four cylinder engine instead as it uses a timing belt instead of chain and is overall quite reliable, the belt is also easy to change DIY. On top of that it uses about the same amount of fuel as it isn't as labored as the 1,2. Would be interesting if you could show the maintenance history of the car (or lack thereof) as it's a major contributor to stretched timing chains, even still VW are notorious for making bad quality timing chains so I wouldn't be surprised if the car had good service history.
We dont always have the service history available on older cars that have been serviced elsewhere. There was no service book in the car and no digital records
Superb diagnosis once again Dan, don’t know why they would send their car to another shop when they could go directly to the genius that is Dan, keep posting I love watching you diagnose 😊
I remember that little exhaust stroke hump from one of the BMW vanos videos. That time timing chain was not the issue though. Keep up the good work Dan.
I did same job last year on a Polo, not understand how they built such a good quality engine with that tiny chain instead of a bigger one or a good belt. Luckily the harder part of the job is about sealing and getting access to some bolts...
Hi Dan, thank you so much for sharing your knowledge. We are learning free from you. I hope the other mechanic are honest like your. Some are scary just two absorber shock front for Volkswagen Caddy 2010 model he is charging me $1600 then camshaft assy with timing belt kit worth $5500 too much.
For a quick old school test , I believe using a vacuum gauge , would show between 8 to 15 lbs. for late valve timing . It certainly would not hurt to confirm the results with a more advanced test . However , it may point you in the direction . Unfortunately , since all modern engines don't have easily found marks , distributors or easily removable valve covers , it becomes involved . You can look at the valves with a bore scope , but getting reference marks may be difficult . Sometimes removing a #1 plug is a project . Great diagnosis and fix .
When I worked in the shop or on the shop I would tell the customer. That'll be charged two charges. And the second thing I need to tell him is that nine times out of 10 is one spaghetti nut mess. So it's like I'm doing their stuff and then doing the right stuff just like you God bless you ❤
Pico for the win, proving the problem. When I saw that up rise point in the waveform even with my limited Pico knowledge, immediately I said exhaust valve and timing chain problem. In school we learned 2.54 centimeters or 25.4 milimeters equaled 1 inch. In engine timing THAT'S A LOT! No wonder that poor little engine with a 24 milimeter stretched timing chain couldn't move that car! Well they brought it to the right guy who fixed it. Good one Dan!
Forget about inches 🤣 only 1 country in the world using those😁 thanks for leaving a comment Mike it's really appreciated. On my Facebook page i've got a picture of the old vs New chain.
Check out my website ; www.diagnosedan.com
For DDTSB visit DDTSB.COM
For the Topdon tool used in the video:
US :
www.topdon.us/collections/professional-series/products/phoenix-max
UK :
www.diagnosticconnections.co.uk/
EU: eu.topdon.com/products/phoenix-max
Very interesting diagnosis as always. I’m trying to understand how a loose chain would cause timing to advance. Wouldn’t skipping a tooth cause timing to be retarded thus causing the exhaust valve to close later rather than sooner?
Could it be that the pressure bump is caused by the intake valve opening too late? I believe I read somewhere that some engines send a brief pressure pulse into the intake runner to create a shock wave in order to improve cylinder filling during the intake stroke.
Thank you.
EU link not working..
@@frankp.2831I'm interested to hear the answer for this question too and also how much longer that old chain was compared to new one? Great video as always👍🏼
Topdon links not working.
@@romxxxromxxxfixed now👍
Nothing Excites Me More In Life Then Receiving A Notification That DiagnoseDan Uploaded A Video 😊
You need to get out more.
Every year 😂
The bell doesnt work for me :(
😂. I understand. He's very good at explaining even to a newbie. Some other channels already assume you know the basics.
Thats great to hear, next video comes sooner!
How do you make an advanced concept so easy to understand? It must be a gift.
Its not complicated, if it was i wouldn't understand it either😂
I agree, he explains it better than a college instructor ever could 👍🏻
Not hard at all. Every rise on the waveform indicates a rise in pressure. That little hump was in an area where it should've remained level. Meaning that the piston was on its way up when the exhaust valve closed a little to soon
@@frnkjones40 But, no one else was able to explain it in such a clear concise way - I watched other videos and was not clear on exactly what to look for. This was excellent...
Dan's approach makes it so much more digestible.
@@Diagnosedan Don't sell yourself short - it's easy for you now, but first time you come across it, you need someone who can explain the concept clearly - I have not seen anyone else do a good a job at it as you have.
This is a good lesson for workshops. If you guess the problem then you will lose customers even though the guess was correct!
Thats right
I just finished watching Pine Hollow Auto Diagnostic video and now i'm here , keep up the good work.
Me too!
And me
same here
lol Me too !
Watch Wes Work too
Has no power? That's how it was made...
😂😂
And guzzles gas compared to modern engines 😢
😂😂😂😂😂😂
Yes, this isn't the WRC rally version... 😆😆😆
With a worn chain it has less than no power. 🤫
Always fun watching Dan properly diagnose these failures. I learn more every time. 👍🏻
Thats great!
Yep its obvious don't buy a German car. Problem fixed.
This is incredible. VW switched from timing belts to timing chains but kept the same lifespan.
Thats about right😂
Brilliant detective work.
Thank you!
Hello Dan, we've been waiting for your videos. Kindly if you can make these videos often. Appreciate.
Next one coming sooner!
Keep the videos coming, we love them.
1.2 engine is a Big Block today's scale 😀 Good diagnosing again!
🤣🤣👍
Dan! This was a perfect opportunity to use the PHAD Pressure Transducer kit that I sent you! 😉
Holy crap that chain was STRETCHED!! 😮
Hi Ivan.....next time😉👍😘
Great to see you again sir !!! - This is a VERY COMMON issue here in the US with Audi. I always use the CMP / CKP Sensor Correlation data and waveform as my initial assessment with that code.
Good work! Done some audis myself, more work than this little thing!
Thanks to your skill and professionalism, now we have everything a customer should want from a mechanic.
Thank you
😊 thank you for another wonderful video. Thank you for giving us the extra knowledge of trying to diagnose the vehicle with the proper tools 10 out of 10.
Its a pleasure!
DD's videos are solid gold!
Thank you very much thats appreciated!
It's a rainy, miserable day and I was bored out of my tree, so it was perfect " timing " that you just loaded this video. As you said this was not an exhausting task at all. Cheers from Canada
Glad i could entertain you for 17 minutes
It was worth it to wait so long for the next video, enjoy
Next one comes sooner!
😂 always appreciate your work. I can honestly say that I don’t know of any channel that does such a complete presentation on vehicle electronics.
Plus the bloopers are an added bonus…
The bloopers🫣🫣🫣🫣🤣
We missed you Dan....! Thanks again for the excellent diagnostic lesson. Always amazing and educational. Nobody does it like you do. Thanks again Professor..
Next video comes sooner 😁
Nice demonstration and proof of concept testing in order to hit the nail on the head and not guess! Thank you for sharing with us as always!
Its always a pleasure!
Great video, Dan. Lovely to see you back again! 😆
Thanks!!
Real nice to get another video from Dan. That timing chain was so stretched it must be made from plastic.
The chain on the 1.2 is actually made from liquorice. 😁
I've got photos of the chain on my Facebook page 👍
Kudos to Dan...two things:
1) when scan tools first came out, very few mechanics could look at a waveform and understand what it was trying to tell them. That second pressure hump pointed a big finger at the problem.
2) It would have been nice to see the old chain stretched out next to the new one on the table. Amazing that a tiny bit of wear on each link would add up to so much stretch.
I've actually got a picture, i'll post it on my Facebook page👍
@@Diagnosedanyou have a Facebook page?
I'm so there!
Thanks for taking the time to show us the waveforms after repair, Dan! We realize that takes expensive time for you to do that. Love you, man!
I like to confirm my repair anyway so might just as well show it👍
Too bad I dont live around the corner, I would most certainly visit your shop!
Thank you!
Another great diag - you are the Femke Bol of car diagnostics !
She's faster😂
I was impressed with how much room there was to work on the chain, that's a gift!
Only a small 3 cilinder engine😉
Nice to see you back Dan.
These engines are very prone to timing chain slipping if the engine is turned over backwards. Not a good thing if you park in a forward gear facing up hill. ;-)
Or a reverse gear facing down hill lol
You are right, i've also seen cases that they rotated the engine the wrong way during a clutch job.......🫣
Thank you for creating such great content. You are not just an excellent technician but a great teacher as well. I bet you learn even more after teaching us on RUclips🤝🏻
Thanks!
I've been looking forward to your new video! I thought ahead about how to discover if the chain was stretched, but had no idea about this method. Very enlightening. Thanks, Dan. Your videos are invaluable.
Thanks Bruce
Appreciate all your videos. By the way I’m on my second year of subscription to DD tsb. Absolutely first class.It’s got me out of trouble so many times 👍
Thats great to hear! Thanks for your feedback 👍
Whatever you've done in the edit with regards to noise cancelling the engine but at the same time maintaining clear commentary is second to none. So good I nearly didn't notice!
Thanks for the feedback!
you would also make a great heart surgeon Dan. I enjoyed your work once again Sir, cheers NZ
You have a very good videos Dan, the owner should know that the chain is automatically changed between 120 - 150 thousand km.
"is Automatically changed"? 😅
yeah it does it itself, very smart car@@rkan2
Top work as always ❤. Good wee refresher for me too.
Thanks Barry! Thanks for taking the time to leave a comment that's really appreciated my 🏴friend😘
We learn a lot from you, keep it up, big brother
Thanks!
Great video as always.Nice to see you back ! Bloopers where good too !!!
🫣🫣🤣
Dan looking like he's on a good health regime - slim and trim.
You would think that car manufacturers would have a timing chain sensor to alert the driver with a Check Engine light when the chain guides pass their maximum tension measurement. That would save on a lot of diagnostics!
Very true
Great idea! But i think it was not intended to stretch that much 🫣
I liked that there was info on what the specs were for the timing chain tensioner! That would be handy.
Yes indeed, at DDTSB we like to include as much information as we can.
I'm amazed they didn't try the chains first. That's really the only common fault on that particular engine except for coils.
Dont try but measure😉
@@Diagnosedan 100%, but the majority of mechanics will go for the most likely solution instead of a proper diagnosis.
As always Dan excellent video on start to finnish to problem do wish that you could do more videos .
Thank you!
Than you Dan for sharing valuable information with us! We have VW dealers that are not this good in diagnosing as you and are more keen on stealing, what a shame.
Remember there are also great Dealerships out there
Dan The Man. I'm always excited when I see you have posted a new video. Can you maby show us the repair next time?
Thanks for watching!
Another excellent high quality video. Huge props to you. Would love to have you as a mentor as an apprentice! 👏
Thanks James!
Thanks Dan for explaining a bit more about in cylinder danusures and how to 5est for street time chains
Thanks for watching!
Wish you would post a bit more the couple of vague gse gearboxes were interesting
Great video. I like those dividers that show the TDC and BDC so you can see the degrees.
Another great troubleshooting, you never disappoint 😊
Thank you!!!
Good research and repair process. Also, NO colatteral damage and a cleaned engine that removed all "finger prints etc". Customer should get some refunds from the other shop too.
Removed all evidence 🤣🤣
Love your in-depth diagnostics. These days it's hard to locate a shop that will take the time to do it correctly. Also like your bloopers. Funny Dude!!!
Thanks Bill
I love your methodical diagnosis. I’m yet to find someone who can diagnose mine!
I'd be curious to know what parts the other shop mistakenly replaced. There are so many cases where another shop completely misdiagnosed a problem and replaced and billed for parts that did not need to be replaced.
Love the bloopers.👍
🫣🫣🫣🫣🤣
Fantastic diagnosis
😁👍
Your the man Dan. I just fixed/repaired my first BMW. No crank, no start.don't have a scanner that can talk to the BMW, so I had to relye on utub. Did a bypass on the immobilizer to verify that the starter worked. Then found fuse #30 was blowing. Utub to the rescue, said check out the oil sensor level sensor. Found a wire bare at the 90• coming out of the sensor. Tape it up, did not reconnect to the sensor, costomer request.the car is no😅 doing fine. 325ci.
Great job💪
Great job, Thank you Dan for explaining EVERYTHING and re-doing those tests!
Its a pleasure
I love all your vids Dan, they have taught me alot. But on this one I don't understand why you reached for all the sexy toys when a quick removal of the camshaft end caps would have revealed the grooves on the shaft ends not lining up. Or have I missed something? Keep up the great work!
Yes let me explain the point of the video.
I work on all brands, all engines, this method is universal for all engines. Generally timing an engine mechanicly requires quite some disasambly. And you need timing tools for all makes and models even when you might not need them.
This method is fast on all engines 3-6-8 or 12 cilinders doesn't matter.
Nice video and diagnosis. I guess some parts were required.
Yes but fortunately they are not that expensive
awesome work, thanks for also including before and after curves of the cylinder pressure, that was very educational!
Thats great to hear!
Great video as always Dan, very logically explained. Excellent video production 👍😃
Thanks!
Good to see you Dan 👍
Diagnose Dan fixed it again!
👍👍👍
As always some new thanks dan for the traduse presor
Thanks for watching!
Those polos with the 1,2 are notorious for stretching chains, I knew instantly that it would be stretched chain when I saw it. I tend to advice people to stick to the 1,4 four cylinder engine instead as it uses a timing belt instead of chain and is overall quite reliable, the belt is also easy to change DIY. On top of that it uses about the same amount of fuel as it isn't as labored as the 1,2.
Would be interesting if you could show the maintenance history of the car (or lack thereof) as it's a major contributor to stretched timing chains, even still VW are notorious for making bad quality timing chains so I wouldn't be surprised if the car had good service history.
We dont always have the service history available on older cars that have been serviced elsewhere. There was no service book in the car and no digital records
Awesome diagnosis again Dan 👌👏👏👏
Thank you
2012 and it’s repairable is a miracle for a VW.
Economically*
At that driven distance it's past designated lifetime.
Its always repairable 😉
The complete timing chain kit as shown costs 140 Euros. Dirt cheap
@@ehsnils Plenty for sale in Denmark with over 200 k km, some near 300 k
bloody good show , as always awesome viewing, cheers
Thank you Robbert
Superb diagnosis once again Dan, don’t know why they would send their car to another shop when they could go directly to the genius that is Dan, keep posting I love watching you diagnose 😊
I can't do them all!🤣 Lets leave some work the my colleagues at other shops😉
Thanks Professor Dan, it's pleasure to watch your's videos.greetings from 🇭🇷, great respect 👍🏻
Thank you very much
Totally agree that right tools, right information is key to a successful job. Good job Dann
Thank you!
I remember that little exhaust stroke hump from one of the BMW vanos videos. That time timing chain was not the issue though. Keep up the good work Dan.
You remember correctly!
Fascinating AND hugely informative as a diagnostic think tank lesson..
Thanks for watching!
Thanks for the video Dan
My pleasure
Now that's proper diagnosis ! Goed gedaan, Dan !
I did same job last year on a Polo, not understand how they built such a good quality engine with that tiny chain instead of a bigger one or a good belt. Luckily the harder part of the job is about sealing and getting access to some bolts...
Your are an amazing diagnostic mechanic !
Brilliant video and the complexity explained by Dan expertly
Thanks!
You are a good teacher I learn a lot from your videos, thank you.
Thats great to hear
Thanks again Dan - you are an excellent teacher !
First video for this year, well done Dan.
Sorry little late🤣
You are number 1 Dan. You made that look very easy. Two thumbs up.
Thanks!!!👍👍👍
Dan the man !!! You’re the best , love all your videos , this is what others garages/workshops should strive to be like ,
Regards Davy 🏴🇹🇭
Thanks Davy!
Well done Dan, nice to see another Mighty 3-Cylinder back on the road!
🤣🤣💪💪💪
Hi Dan, thank you so much for sharing your knowledge. We are learning free from you. I hope the other mechanic are honest like your. Some are scary just two absorber shock front for Volkswagen Caddy 2010 model he is charging me $1600 then camshaft assy with timing belt kit worth $5500 too much.
Thanks for video dan....great
I would liked to see you change the parts, can you also do a shop tour? Thanks 👍
Great video.waiting for more videos
Thanks Dan. Appreciate
Just awesome work. An example of how a higher shop rate can actually be cheaper!
Cheap isn't always cheap!
As usual great fix with great thought process to get it right.
Thanks.
Thank you!
A beautiful diagnostic Dany 😎👍✅✅✅✅
Thanks!!!
For a quick old school test , I believe using a vacuum gauge , would show between 8 to 15 lbs. for late valve timing . It certainly would not hurt to confirm the results with a more advanced test . However , it may point you in the direction . Unfortunately , since all modern engines don't have easily found marks , distributors or easily removable valve covers , it becomes involved . You can look at the valves with a bore scope , but getting reference marks may be difficult . Sometimes removing a #1 plug is a project . Great diagnosis and fix .
On this engine it is super simple to check the timing with the timing tools
Thanks for taking the time to leave a comment!
Thanks for teaching me something today.
You are welcome! 😁
Great job Dan. Always a pleasure to watch.
Thanks David
Nice Fix Dan you're the man. Great video m8.
Thanks!
When I worked in the shop or on the shop I would tell the customer. That'll be charged two charges. And the second thing I need to tell him is that nine times out of 10 is one spaghetti nut mess. So it's like I'm doing their stuff and then doing the right stuff just like you God bless you ❤
Thanks for watching!
Hi Dan, Thank you for this new video :)
And thank you for watching!
Pico for the win, proving the problem.
When I saw that up rise point in the waveform even with my limited Pico knowledge, immediately I said exhaust valve and timing chain problem.
In school we learned 2.54 centimeters or 25.4 milimeters equaled 1 inch.
In engine timing THAT'S A LOT!
No wonder that poor little engine with a 24 milimeter stretched timing chain couldn't move that car!
Well they brought it to the right guy who fixed it.
Good one Dan!
Forget about inches 🤣 only 1 country in the world using those😁 thanks for leaving a comment Mike it's really appreciated. On my Facebook page i've got a picture of the old vs New chain.
Dat heb je mooi opgelost kerel! Goed bezig!
Bedankt!
Very comprehensive!!