Here is the original full length video kzfaq.info/get/bejne/jbGUjdaIupi-nX0.html

Mr Danner. I mentioned once that I can view one of your tutorials a year ago, and If I look at the same lesson today, there is always new things that gain my attention. You were way out ahead in estimating where this industry was heading and responding with education. you are a great teacher.

Perfect thank you. I'm just starting out and I'd love more easy to understand vids like this

Just a shortened video from 2012 and so many times I need just the highlights for my students and this was it for sure. Thanks!

Awesome summary, I learned how to perform and use the relative compression test from watching your videos years ago and swear by it.

Great way to teach a subject

Thank you Paul. Good job brother. Have a blessed and safe week to you and your family.

well made and to the point

thank you very interesting video (greetings from Belarus)

Thank you for another informative educational video Paul

Quick and clean tests. Make sure battery is fully charged and cranking system is not making strange sounds other than the ones heard in this video!

Hello Mr. Danner, thank you for your videos 👏 your book has been very handy as well 👍

Thank you ! Great video and great idea to condense the information ....or should I say Brilliant!

Quick and perfect video💯

Excellent video Paul. Nice format and good info. Thanks for sharing 😀🙏

I was thinking at the beginning, I couldn't hear or see anything wrong... I am glad the 2nd part followed with removing a spark plug lol

Good morning Sir ScannerDanner,have a great day, take care Sir ScannerDanner Great tutorial thank you 👍 From Nick Ayivor from London England UK 🇬🇧

Very informative

Another good video Professor.

Hello there, I have been studying automotives especially engines for about 9 months, I used to watch a video of you every now and then, and I couldn't keep up with you as you talk but now, after I have increased my knowledge ( a little :D ) Man, your troubleshooting approach is absolutely impressive as well as the hearing notes ;). Thank you

Dang that Autel Ultra looks like it’s been used a lot 😂 thanks for sharing love these

I thought it was smart of you how you also showed how a good engine should sound under normal compression. As compared to how the bad one sounded.

Nicely "compressed" video Paul. Perfect timing, More bang per sec. Higher rpm of info. Straight to the stoichiometric point!

I enjoy your lessons Paul..

Great video Paul, remedial for veteran techs but, a very good video for the rookies to see for sure!

Thanks for share this tips are wonderful 🔧☺

Danner, dude. Awesome concept, perfect execution, bite sized for jagoffs like me. I'll still watch the full length ones but this is sweet.

Great video 📹

Paul, your videos are awesome 👌👌👌

thank you!

Paul nice job i like to AC couple when I do this

Awesome thanks SD I just purchased a snap on Modus pro and am excited to do this test.

Thanks

Love your videos ... Love your book ... thank you for continuing to share your vast knowledge, you are amazing !!! Alain from Canada :)

I love it

So awesome skanner! I Love u

scope 101... everydays a learning day...

The new autel scan tool can really shine here... Should be able to do this via the vci and power/ground. The tool already knows how many cylinders are in the engine once the vehicle info is entered. A sync may not be so easy to figure out, but autel is almost there in terms of having you be able to do a relative compression test from the drivers seat, only hooking up to the dlc.

Thanks for sharing SD👍 It was a great case study & lecture really learned a lot from you that I could've never imagined👍 Thanks for the editing Caleb, you're becoming a Pro like SD😎 Stay Safe & Blessed Guy's❤

Hiii Scaner daner plz make a video on ECU Remaping

Awesome man

Great video as always, stay blessed

hello danner i have a question as a beginner i wish you could explain i have a jeep liberty kj 2003 the car has poor fuel economy like 200km per full tank i didn't mind it since its a high mileage vehicle with a burning oil engine with a faulty o2 sensor after a while th engine had a major problem with the bearing it needs to be rebuilt completely it coast a lot in this country so i bought another liberty which had an accident but mechanicaly in a good condition so i swapped tge engine and transmission and front differential and the gas tank with the pump o2 sensors every thing but the map sensor because it was broken after the car is ready i drove it for a while it still has poor fuel economy its even worse than the old engine the car has no codes so i suspect the map sensor i cleaned it since i couldn't find new one nothing changes after that i noticed in live data that the tps read 13.7 % the old tps was reading 12.2 % so i removed it while it still connected to the wires i noticed the reading drops to 6.8% like the throttle body (it's clean) holding it from full return so i modified the throttle body axle that move the tps until it read 6.8% while it's a full closed throttle plate.... i still have high positive ltft but i do noticed improvements in fuel economy about 150km more than before i hope you explain the situation and if i changed engine oil will my ltft get close to zero? thank you and I'm sorry for the long story

That’s so cool. ? So the pc or laptop will do the same test an any one as well

Nice job. Q: You disable the fuel, so what's the different between 1 & 4 in firing? I mean If you synchronizing with number 4 will get the same waveform, so why one high in compression stroke and the other is low in exhaust stroke and you don't have a fuel!!!?

I did not know you could check compression this way ? GREAT VID. & DAN, LMAO, I'VE HAD A FEW " DEAD HOLES " IN MY LIFE, STILL LMAO " DEAD HOLE " BWAHAHAHAHAHAHAAH.

Can voltage be used for this test?

Use the test lamp to lose the power of the spark but the test lamp It doesn't work Does this test affect the spark test? And can the spark be tested using an insulated nail key without being negatively contacted?

Dig it...man...

Good day Mr Danner, I'm going to buy my first oscilloscope and I want to have a printed book (besides all the video information ) to help me learn as much as I can, would you recommend any book?

Now I need to get a trigger signal from a Toyota 4-wire COP while I perform the relative compression test. It seems like the computer stopped firing the coil with the EFI relay pulled. Hmmmm, how to proceed..

What do you think of the BlueDriver scan tool is it worth the money

Just wondering what settings you are on. 2 volt 2 seconds with 20 or 40 setting on the probe?

Why the waste spark peak is smaller? due to pressure?

Ihave a car i dont know whats the problem said misfiring but i already change plug and coil.still there the misfire

I have done this before, but for some reason the peaks are not showing up on the scope (modis ultra). I tested the 9v batt in the snap on low amp probe. I connected to the batt starter cable. Used 2 channel scope at 5v and again at 2v/div. Disabled fuel pump and cranked at WOT. The trace went up to 2v as a flat line--no peaks. This is being done on a good engine for my own practice. Any thoughts as to what is wrong with my setup? I tried neg batt cable too.

Be nice if you showed the basic setup of the scope . Most scopes have the same basics for setup .

So, if you expand all those highs and lows, you would be able to say what valve it had a problem on, like inlet or exhaust? ( That’s if it was a valve in “a” case I know it is not in this video ) also the high yellow is on the compression stroke, but the low yellow? Is that the cylinder on exhaust part of a cycle?

5:01 Would it be cylinder #2 or the second cylinder in the firing order? Just looking for clarification. Thanks

Is there a website i can go for your class or lesson?mr.danner

hey SD, just curious if i can pick your brain, 2002 saturn L300, 3.0 liter vin r, through my co-worker for a loop, another shop replaced the fuel pump twice, he replaced the plugs and coil packs, no codes stored, has a long crank issue, cats not plugged, no intake restrictions, egr valve not stuck open, i started to help him diag it, and as i was looking at live data, i noticed the map pids reading at idle 7 kpa and .29 volts, at static, key on engine off 37 kpa and 1.79 volts, verified all three circuits were good, and replaced map sensor with known good one, suspect ecm failure? any thoughts?

For injectors, where do you probe them? I can only see the voltage of them but no activity, sometimes I cant use an amp clamp because of engine constraints, etc.

Good to know that when we have a zombie apocalypse combined with a alian invasion I can still find the missing compression in cylinder #2 with just my ear...

Will this work with Diesel engine?

No one wants a dead hole! 🕳

I hear a weak hole. Dang, you said it 30 seconds later, lol.

👌👌👌👌👌👌👌👌👌👍👍👍👍👍👍👍👍👍🙏✌👋