Troubleshooting An Intermittent Idle Only Misfire (Dodge Durango) Part 1

[@Diagnosedan]

Gas analyser reading 27.3% Oxygen in the air🤔 Tell Danner to get it calibrated😉

[@billrimmer5596]

Nice to c DD here. Never miss an SD or DD video. DD fixed it again!!

[@EKHondaMotive]

Good eye! Great catch!😁👍 -100

[@ScannerDanner]

🤣 nice

[@thisisyourcaptainspeaking2259]

Air is 21% oxygen, mostly N2 (78%)

[@eugeniujosanu279]

The " computer guys" working toghether, Nice!

[@chrisdavis8299]

I actually learned a lot from watching you perform all the various tests! So not a total waste of time brother! Thank you for everything!

[@CumminsDriver100]

I cannot STAND getting bad new parts. When I first started working on vehicles my brain would automatically convince me that no, it can't still be that because its brand new if the problem remained. Led me on many ghost hunts that I learned the hard way from.

[@grandsea2]

Always good to see that even World Class Tech's like yourself get tripped up scratching their heads by the new part bug sometimes...just proves your human still! Thanks for sharing!

[@tracydiller9378]

Intermittent problems is a pain to begin with but going thru the troble shooting you did led you to the problem.Great video as always.Stay safe everyone.

[@thesmartguy3523]

Had a similar case with a Yaris 1KR, misfire was only at idle, at higher RPM, no misfire, no fault codes, all tests passed, turned out to be a damaged intake valve.

[@speedy_pit_stop]

I waited days to finally have time to watch this one. Glad I did. It's not as fun when the diag is too easy.

[@htownblue11]

For an experienced diagnostician, a first instinct is usually a good idea as to where to start, but the goal must always be to let hard factual data / input be the final diagnostic end all. Process of diagnosing is part science, part instinct, and part experimentation. Read the plug and boot and replace accordingly.

[@ScannerDanner]

Unfortunately upper intake removal is necessary to gain access to the coils and plugs, but you are correct and I'm doing everything I can to prove whether or not I need to do that 😉

[@benclark1113]

Awesome video! Learn so much from you! Had a similar issue with my wife’s 3.6 pentastar a couple years ago, it ended up being 1 failed exhaust rocker arm on misfiring cylinder. Wasn’t making a sound!

[@thogevoll]

Really enjoy your videos. I used to have a 2002 Chrysler T&C that developed a really bad multi-cylinder miss fire. It started as a single cylinder miss fire but after a particularly cold night it became many cylinders (almost all) miss firing. Turned out the wiring harness for the fuel injectors came loose from its support and fell down near the exhaust manifold and melted the insulation on the wires and they shorted together. It was a mess. I had to use a heat gun to separate the wires and then cut out the bad section (about 4 to 5 inches) one wire at a time rejoining them with butt splices and solder with heat shrink over them. After I got done with it the harness still reached to where it needed to plug in and was now too short to get too close to the exhaust. Car ran great after that. Apparently this was a fairly common problem.

[@silvergate8952]

Thank you great description of my problem too

[@haakanlight9661]

just got the fuse adapters from AESwave myself. Awesome tool to have.

[@shawnhimel1969]

Great video on the total diagnostic process, lots of great testing. great job Danner, great editing too...😁

[@Paul1958R]

Caleb, James, Paul Great analysis and video - thank you! Let us know how it ends. Paul (in MA)

[@normangallant9879]

Wow what a find.True at times new stuff can be the culprit

[@jonathanbarnes3792]

Was surprised how low statistic for cylinder head was on the repair ranking for the P0302. I was getting tons of compression loss diagnosed for case study results when I had a Grand caravan here with same code, same engine. I was losing sealing of exhaust valves on my customer's 3.6/cylinder 2 as well. Anyway looking forward to the update. Thanks for taking us along on the struggle with this one.

[@knock904]

I see u taking the tips Scanner ..u are awesome .gotta keep us sumth 2 click on

[@fulano787]

Pentastar 3.6 is known to have poorly machined valve seats. Results in cyl 2 misfires. There’s a recall for it. That’s why it’s the first recommendation in the troubleshooting tree. I have one in my wrangler and it had to have the cylinder head replaced under 5k mi

[@mypony7310]

I did one 6 months ago. 3.6 chrysler. Ended up being the cylinder head. A cylinder leak down test showed it pretty quick. The new head from chrysler was only like 350 bucks

[@Portuguese-linguica]

Ya the head was only 350.00 but labor and taxes plus other hidden fees more along the lines of 900 to 1,350.01

[@carloshernandez2216]

There is a TSB for this problem in bank 2, they even extended warranty to a 150k miles

[@THERIDESHAREMINUTE]

​@@Portuguese-linguicaexactly. So I just went through this for the 2nd time in less than 3 years with 2 different caravans my 2016 and now 2018. It was easier to use the 1300 bucks for a down payment and buy another one that comes with a 4 year 80k mile warranty. Case closed. Piece of mind for the next 3 years minimum.

[@godfamilycountry4211]

Secondary ignition problem? I need to do a little research. Great video guys thx so much

[@johnjohannemann1220]

Excellent presentation and diagnosis as always 👍🏻

[@tcifusion4497]

FREAKING LOVE THOSE CASES....THE ONES U THINK U GOT IT!!DAMMMMM I LOVE THEM......

[@sixstarauto]

Get it all set up, won't break, story of my life.

[@amr-50]

That was a great one danner you are a star

[@codysautodiagnosticsprogra8706]

Excellent video like always Paul

[@MarioDallaRiva]

ScannerDanner Premium members need to hear the unedited audio! 😎😈👌🏼

[@ScannerDanner]

lol

[@steveguest8028]

Great video this is Paul i have been caught out by this before, had a vauxhall with a dead misfire on cyl.2 put a coil pack on it and the misfire was still there and STILL on number 2 cyl. Would you believe it was a faulty coil pack causing the misfire on the SAME cylinder …. Crazy stuff man

[@Volusiaev]

@ 26:05 Grammy Danner must really be praying for you, Paul, LOL

[@ScannerDanner]

🤣🤣 I'm dying, yes she absolutely would be for that rant

[@verohandymike]

28:39 Actually the very first thing I've ever done when one cylinder is misfiring is to swap coils and plugs to see if the misfire follows them.

[@joemichael3656]

Found idle miss fires on some ford 3.0 liter 4 valve engines to be burned exhaust valves, usually you can hear it while cranking but got fooled by that because it was so slightly burned and the misfire monitor was picking it up. Also found 4.6 liter engines with head gasket leaks into the cylinder and would miss when cold, took a while to find put the pressure tester on and let sit overnight pulled the plug and found slight amount of coolant on the center of plug.

[@kevinfrye1822]

I seen people say cylinder head and there was a call back / service bulletin on the first 3 years of the production of the pentastar 3.6 l cylinder head causing misfire on the #1 bank but it's usually all 3 cylinders on that bank. They ussually fail a cylinder leak down test .

[@GeneGainwell]

I'm currently a tech at Dodge and I was scratching my head😅

[@lance1097]

We have all been there Paul. Why didn't i do that to begin with. Kicking myself .

[@JoseAndrade-ke4fz]

This is exactly what i needed! Thanks for the awesome video.

[@artyfuffkin7805]

A completely cold compression test should be done 1st to rule out mechanical problems

[@Pablo_Automotive]

Thanks a lot for this kinds of videos it's really interesting.

[@daveunbranded]

I have the same motor. I reused that intake gasket 2 times. I know it says you can't. But I had no issues

[@blakeknox6178]

We’ve done hundreds, of lifters, rocker arms, and cam shafts, for the same problem, especially on the earlier models 20 12, and 13’s

[@ScannerDanner]

Which is why I was shocked when it ended up being a secondary ignition problem. Thanks for confirming that.

[@jorgegonzalez-bk8zn]

Happen to probably all of us before if there if there is a new part that is the last part in question but so many aftermarket parts fail

[@JimmyMakingitwork]

Valve seat issue or carboned up valves… On to the video. :)

[@logicalguy488]

Another factor is ... New is not always good.

[@nunya2814]

Absolute epidemic of horrible parts the past yr. Almost makes me wanna give up sometimes.

[@ScannerDanner]

Man I could have said that myself. Truth in this statement for sure!!!

[@plowe6751]

22:45 Gas analyzers that include HC readings in the range necessary for this test are super expensive. However, gas analyzers that include CO readings in the range necessary for this test are super cheap. Here's what I'm thinking. Take the vehicle outside where there is plenty of ventilation and disconnect the engine coolant temperature sensor to force the engine to run rich. And then do the test with a cheap $97 carbon monoxide tester. Sure beats spending $2000 to $3920 on a 5-gas analyzer that includes HC readings in the suitable range.

[@ScannerDanner]

The HC test is the most accurate, hands down. You can have a complete misfire from a head gasket failure and have no CO or CO2 in the cooling system. Why? You need combustion for those gasses.

[@alexisjohnson9608]

Hey Scanner Danner awesome Tec videos you can reach a larger audience here on KZbin I miss the Hands-On back in the old class days at Rosedale continue to share the knowledge God bless take care

[@ScannerDanner]

Is this my friend Alex? Former student at RTC??

[@alexisjohnson9608]

@@ScannerDanner yes sir it IS my friend Paul.

[@alexisjohnson9608]

@@ScannerDanner yes it is me my friend. Good to see the videos AND to hear from you.

[@ScannerDanner]

@@alexisjohnson9608 oh man! It is so good to hear from you my brother. I miss you man. It has been a really long time. I hope you are doing well and your spirit is well too. It certainly was not the last time we spoke. May the God of peace be with you every single day. Are you still local?

[@alexisjohnson9608]

@@ScannerDanner hello brotha Paul good to hear back from you. I'm doing well thank you. It has been to long brotha. Searched hi and low for you man and then just decided to leave a comment and pray 🙏 you would read it and reply. You looking huge man and good to see u and ur son working together on different projects. Hopefully one day we can get together so we can catch up even more my brotha. Stay Strong and keep up the good work.

[@eduardotejeda]

That fuse box clic never gets old. 🤣🤣🤣

[@everythingbutkoi6898]

Great work again

[@wendywhales2310]

Many years ago bought 4 Brand new Plugs, OK on short runs,,Did a 100 mile run. Firing all over the place,put my old plugs back in,,No more problems..There is a lot of Rubbish parts out there these days..Never Discount a Faulty Part..

[@JimmyMakingitwork]

Wow. You would think they would Know if the problem started after a tune up to look for bad parts? Let us know.

[@billrimmer5596]

Thank u for some great instruction.

[@justinballard7242]

13:05 good ole 350 vortec leaking around the injector connector. Seen that trick before 😂

[@eddiereichel9354]

To anyone dealing with these engines. The roller rockers failing is caused by the oil galley plugs on front of cylinder head (under the cam phasers). There are 2 plugs that look like bolts right directly undert the cams. Those plugs loosen up and the oil pressure that is supposed to be supplying the head is bleeding off. I pull the plugs out and clean it all up and use red locktite. They could also just be tightened but every single one of these iv messed with those oil galley plugs have been loose.

[@durbinmotorworks6253]

Interesting info. Do you think that much oil would go by the threads? Should be a very tight squeeze.

[@eddiereichel9354]

@@durbinmotorworks6253 Iv done 3 of them so far and every single one of them the plugs were all loose. There are 4 of them

[@dugy40]

sometime when u get a little time can you explain what your listening for when u hold the pedal to the floor and try and start it?

[@ScannerDanner]

Watch the first part of this video kzbin.info/www/bejne/a5qQp5SOiMqooac I go over it in detail

[@wendywhales2310]

Another problem I had was the engine cutting out at exactly 70mph.???. Turned out it was a Burr, Very,Very Tiny,,Hair type burr on the old type Points,,When Reached exactly 70mph it was advancing to the body and shorting it out.. That was a Real head Scratcher.!!!.

[@jonny8813]

Hey off question, what 5 gas analyzer set up was that?

[@ScannerDanner]

PA state emissions machine. One of the few tailpipe test machines left here.

[@gregoryfairchild2460]

Just started the video. Guessing vacuum leak. Air bypassing creates a lean miss usually. Only have high vacuum at idle.

[@gregoryfairchild2460]

Wow...would've been a tough one

[@gregoryfairchild2460]

I'd like to see a close up magnifying glass inspection, maybe ohm the coil etc. Bad boot? Etc

[@abochavez]

Nice camaro

[@kevinfrye1822]

Those 3.6l are known for worn rocker arms causing the valves to not open correctly causing low speed misfired. Long cranking relative compression testing may reveal the mechanical issue of one rocker intermittently binding up.

[@larryreno8293]

But wasn’t this also accompanied by a ticking noise as well?

[@kevinfrye1822]

@@larryreno8293 I've had them not tick and still have a intermittent cylinder miss in early failures of rockers in these specific engines I don't believe that was the case in this video it's been a while since I seen the video

[@larryreno8293]

@@kevinfrye1822 good to know, thank you

[@alrifainidal]

nice work Mate 👍

[@florenbaron7111]

What is a secondary misfire? I searched on the browser and I didn't see a definition. Thank you.

[@ScannerDanner]

Search primary ignition and then secondary ignition. Or I have some classes on ignition systems right here

[@logicalguy488]

For the smoker ..... Just so you know, you can use regular baby oil, Johnson & Johnson baby oil makes good smoke. You don't have to use the expensive smoke oil.

[@kas0016]

Yep essentially mineral oil

[@weldingjunkie]

Baby oil stinks so bad it. Mineral oil is way better. Anyone using baby oil def doesn’t use it often makes me sick now

[@tretyakovdenis]

Baby oil smells so bad. I used regular motor oil

[@Dragonchi1971]

What is the "ticking" sound coming from? There was a time our 2011 Durango Express 3.6 ran smoothly, always using premium fuel here in Georgia. Now, at 167,000 miles, it's making the same "ticking" sound as the one you're working on.

[@blakeknox6178]

Just curious, if it was a bad coil or a plug, my guess it has a bad lifter, or a rocker arm, or cam lobe, I worked for a Chrysler for the past 15 years, thanks always looking for new info

[@ScannerDanner]

I'm pretty sure I proved the fault in the waveform of the secondary.

[@glennallen7129]

You looking solid danner lol! Thanks for the awesome video!

[@ScannerDanner]

Been back to the gym for a few months. 😉 Was slacking over the past few years

[@duanedonaldson2262]

Only guessing, the ECM ASD Output where the fused power in coming from, probably is monitoring if the ASD Relay is closing and the ECM senses the 12V and there are 3 lines to spread out the amperage. NEW, Never Ever Worked. Hi Paul, its Duane from Japan, now in the Philippines, working on coming back to the USA 2024.

[@kevinfrye1822]

I believe there s a KZbin specific to this issue on the 3.6 pinstar

[@billmck12345]

i had a dodge 4.7 engine misfiring on a single cyl after it warmed up.... after a few warm-ups, something dawned on me as to what is going on, so i tryed loosing up the rad cap to releave coolant pressure and misfire went away, put a pressure tester on and pump up to about 5-10 lbs and misfire returned.... it was a head gasket leak!!!

[@MrJgonzalez2]

2 minutes into the video, from experience these engines have lifter/head problems. Should be interesting what you find, oh by the way, intake manifold gets in the way of everything.

[@MR.KNOWITALL1982]

Hi, Teach! Can't Wait for Pt. 2. Are you going to use 3 oscilloscopes? Ohhh... I hope so!!! I like to lie naked next to my Picoscope while rubbing it with baby oil:) I'll share the rest of my thoughts for Pt. 2. You sure outdid yourself this time.

[@ScannerDanner]

🤣🤣🤣

[@m.mooverssr9211]

I always look at mode 6 and ffd look at engine temp

[@DirtyWorm12]

Hey Dan, ive had misfires with these 3.6 engines and lifters stick and the roller rocker roller itself wears out

[@fire7765]

Good job

[@JAKEaudio2]

Great video as always. Question: What solution are you using in the spray bottle??

[@ltd4all]

leave the #2 plug, and switch the coil...If the problem moves from #2, then it's the coil...If the problem remains on #2, it's the plug.

[@ScannerDanner]

Love this test, but only one problem, the upper intake needs to be removed to gain access.

[@dans_Learning_Curve]

Like #20 Thanks for the video! Looking for part 2!

[@nigelclark7360]

All good stuff

[@2secondslater]

I can't wait until you guys get an Audi or VW TSI or TFSI engine that has an idle misfire just to see how much you learn.

[@ScannerDanner]

why would it be any different than any other car?

[@LAW-fv6ys]

Fsi tsi and tfsi are difficult apparently to fix, I've just bought a 2.0fsi golf 2005 as spares and repairs. Misfire at idle and kangaroo engine cut under load above 3k rpm when hot hot not just normal temp ie 1hr drive hard and sit in layby for 10 mins to heat soak it and then it would misfire under load. The fixes breather pipe for idle misfire was easy find. Egt temp sensor showing reading for temp comparible to the model temp, but was fault coding p1453 open circuit replaced and then p0191 fuel pressure sensor implausible signal turns out the low pressure fuel pump was lazy, logged high and low pressure fuel and saw low pressure not recovering very well under load hoovering at 3bar, repalcement pump runs over 5bar. Why you might think only when hot hot, sitting in the layby meant the return fuel going back to tank would heat it up this made the lazy fuel pump run even weaker, once I accelerated out of the layby the fuel trims went positive and o2 lean and to protect the engine it would hard cut the injection and shut the dbw throttle (3k above limp mode active) Also egr wouldn't activate with the egt sensor code pending or present, another precaution to protect from potentially high temps and lean conditions. But didn't flag any egr codes at all. So this was a great learning curve for me. Vagcom vcds is great and a must for VAG cars in the UK. Im looking to get the maxicom mk808bt soon with oscilloscope and bore scope. Any other tablet obd11 bluetooth recommended guys?

[@LAW-fv6ys]

Great find, love the content. Had something similar on a porsche cayenne 4.5 v8 twin turbo, coil plug slightly melted due to a bad connection I guess. Soooo intermittent drove me crazy!!

[@juanalcantar9781]

Haven’t seen this video but on Chrysler you need to clear out the codes or that misfiring cylinder won’t come back

[@cesarjorgemurillobarientos1813]

good

[@dennisthomas4766]

Rotten gas will cause a cylinder misfire on one cylinder when cold and no misfire when vehicle is warmed up especially if the vehicle sits for long periods of time without being run.

[@Kota_Bear]

With that misfire check engine light did you have the stop/start warning light come on as well? I'm chasing a similar issue but the S/S light comes on too.

[@filmaker256]

Intermittent idle misfire My carmy 98 seems to have that , well only when hot outside. It will go away and stay away after that . I keep hearing IAC valve is the culprit for my car. I do have the intermittent lean bank one occasionally however.

[@ScannerDanner]

Definitely not your IAC with those symptoms.

[@filmaker256]

@@ScannerDanner Hey Danner! I am scared to ask , but if you took your best guess with my car symptoms ... what would it be? I do alot of stop and go driving if that helps? Insert bad news below

[@ScannerDanner]

@@filmaker256 too hard to say over the screen here my friend, but the intermittent lean condition code you are getting along with the misfire symptom could be an injector issue, I'm only saying this because of you car and they are known for injector issues kzbin.info/www/bejne/mGnaqGqigrKjkJo

[@filmaker256]

@@ScannerDanner Thanks for response Scanner. I do have small oil leak on valve cover, not sure why people have said that may cause lean condition but I have heard that. Though I would think most likely dirty injector or electrical problem with injector.

[@joe1273]

The rocker arm needle bearings fail a ton, also had a run of leaking valves.

[@scraiga66]

Kinds of sounds like a rocker tick

[@throttlebottle5906]

@@scraiga66 I caught that also, I'm betting mechanical issue too, which explains why it gets better with run time/heat :)

[@ScannerDanner]

No rocker tick. I believe the camera was picking up the injectors on a few scenes. There was no engine noises whatsoever on this from my memory.

[@nightstorm9128]

Is the 3.6 direct injection...

[@V_Vladimir_V]

24:32 на прошлой работе такой же монитор был у меня)

[@davidraezer5937]

Curious to know if it was a OEM coil used or aftermarket or maybe they used anti seiz compound and got some on the porcelain. I wish I still had access to a 4-gas. Block tester works most of the time.

[@kewlskater22mo61]

Just an FYI you will not see misfires when you're in global disable mode. Someone cleared the codes. Thats an fca. There's a drive cycle for it. This stops the report of misfires. And is it really a 2014 by vin? Cylinder head or rocker is the issue.

[@kewlskater22mo61]

This stops the report of misfires.

[@ScannerDanner]

So drive cycle before those PIDs can be used again? Thanks!

[@carloshernandez2216]

Comon problem on cylinder head bank 2 on this 3.6l Chrysler, there is a TSB

[@ScannerDanner]

It's not what you think

[@carloshernandez2216]

I need to see the second part, thank you SD

[@timothymohammed919]

when doing the hydro carbon test itmay be wise to allow the coolant to cycle as the thermostat may stop the air from coming to the bottle .......

[@ScannerDanner]

For sure 👍. Engine was hot and that is also why I burped some fresh stuff into the overflow and retested. Hope that made sense why I did that.

[@ACOnetwork]

New does NOT mean good❗ It means it is not used❗ BTW I remember couple of times I hade computers/laptops with weird symptoms hehe, tech can give you little headaches🤣😂

[@jkbethune]

They probably went with elcheapo spark plugs, or Champion plugs.

[@darrylschuman5373]

Miss at idle only? My first thing would be to use vaccum gauge first for diag. Then i would smoke intake to check for any vacuum leak on that intake run er of missing cyl. I would lokk at plug very closely and then finally do a compression check and leakdown test on cylinder in question. Lean miss on that cyl ??

[@ScannerDanner]

Intake manifold covers the coils and plugs and must be removed so that would alter ones direction a bit 😉

[@Ashroyer86]

You been working out or just eating good?

[@ScannerDanner]

both! Thanks for noticing

[@JoeSmith-dr4us]

Watch out! He's got a probe!!!

[@Hipsters_N_Hippies]

My friend you had better get acquainted with that 3.6... I can’t think of one car and their lineup that doesn’t use it. (Pentastar) from the compact cars like the 200. To the minivans, their trucks, the SUV’s too. Along with the full size sedans and their 2 door sedans. (Challenger) and to think that this engine has been out for quite some time now. Over a decade for sure.... like I said it’s time that you get acquainted with this thing. Just one thing to note, It’s got similar lifter issues to the hemi.

[@ScannerDanner]

It's time I get acquainted? Fundamentals man, I don’t have to be acquainted to anything if you think about it. It's all the same. Stay tuned for part 2, It's not what you think

[@Hipsters_N_Hippies]

@@ScannerDanner well sir, sounds like pt.2 should be good. But definitely get use to seeing that Pentastar V6, you’ll be seeing it around.

[@ekimbrough1413]

Paul, all that fancy smoke crap. Why aren't you running a vac test to diagnose a head gasket problem????

[@ScannerDanner]

This wasn't a bad head gasket. Watch part 2 🙂

[@kas0016]

Wonder what oil pressure is. Guessing it's valve train or wiped lobe, failed lifter

[@airratchetjockey7605]

Engine running to quiet no tick tick tick

[@kas0016]

@@airratchetjockey7605 still can have any of those issues. Doesn't have to be that severe to present a misfire. Could be a simple as a valve seat. He should check fuel trims while he's at it.

[@airratchetjockey7605]

@@kas0016 if it was a wiped lobe from a failed rocker it would be present all the time.

[@kas0016]

@@airratchetjockey7605can't wait to see this one opened. I'm leaning towards valve wear, not seating

[@airratchetjockey7605]

@@kas0016 early Pentastars indeed did have exhaust valve guide issues so it’s a very good possibility. They redesigned the coolant passages to help pull the heat away if I remember right. Plus they extended the warranty on that head.

[@donwasse7892]

Late to this. When you had your amp clamp + snap-on scope hooked up, the scope was set for trigger. I don't believe you would have been able to see a lack of coil control, had that been the issue. I don't think there would have been any gap in the waveform when zooming and scrolling back. If you had used a second channel for firing order reference, do you think perhaps the ringing (oscillations) in the waveform, or lack thereof could have been useful in narrowing the problem to an ignition issue quicker? Perhaps being able to compare the current waveforms when you know the specific problematic cylinder to the rest of the known good cylinders would have been beneficial? I'm still learning, thank you for your work, I certainly appreciate your efforts.

[@ScannerDanner]

Need a time frame, sorry. It's been awhile.thanks!

[@donwasse7892]

@@ScannerDanner 9:14 you state you're looking for a drop

[@ScannerDanner]

@@donwasse7892 this is an auto trigger, so I'd still see it live, but primarily I'm using the buffer to be able to see it when I feel it. Pause, freeze, then zoom out and you'll see it, regardless of trigger setting. Why? Because I can go back in time and view everything, even if a manual trigger was set, I'd still see it. Hope that makes sense

[@donwasse7892]

@@ScannerDanner I use the snap-on Verus scope at work. I was not aware when in auto trigger the buffer would show only time instead of trigger+sweep, allowing a person to see a gap. In a automotive oscilloscope class I attended, it was taught to never use a trigger if you're looking for a missing coil/injector event, as the oscilloscope would not show data unless the voltage reached the threshold of the trigger. Thank you for your responses, I bought your book from AESWave a few years ago, great book.

[@ScannerDanner]

@@donwasse7892 thank you so much! Yeah, that's actually not true at all! The buffer records everything regardless of the trigger on all of the snap on scopes and the pico! Now when you are "live" you can absolutely miss it, but not in the buffer

[@mikejmardis]

It’s the intake

[@ScannerDanner]

no, it is not :-)

[@antoniovelazquez7385]

where are you located, so I can take my Ford Windstar 95 to your place

[@ScannerDanner]

My brothers shop is in Bethel Park Pa

[@antoniovelazquez7385]

@@ScannerDanner can you give me your service, when will be the best day to go to your place, I'm located in Bergenfield NJ 07621 if you take me I can go there to get my car Services. I put in the car , New Battery, Spark plug mostly everything new but Still is doing a misfire similar a what you show in the video, you're feeling as if the car cut the power off or a injector stop to send the signal, if you give a little gar RPM over 100, car working smooth, let me know if you take the hot potato

[@ScannerDanner]

@@antoniovelazquez7385 if you were local, sure! but you are not close, I am near Pittsburgh Pa and my brother runs a 2 week backlog. We are not set up to take on someone who would clearly be waiting. Sorry my friend.

[@hondamojo1]

Typically they'll be one technician in a shop with enough passion for the automobile to endure this level of aggravation and is piled on by management while the gravy suckers toil mindlessly away.