Jeep Crank-No-Start Case Study (SI Ep. 15.5)

[@volvo09]

Old school! 1 tooth off on those distributor style drives has nailed so many backyard mechanics and techs.

[@deepsquat600]

Yeah I remember back in mechanic school back in 1981 when I don't think we have any electronic distributors we had installed one back into a Chevy V8 one tooth off or maybe it was two teeth off anyway I can still to this Stacy the four foot long stream of fired spitting back out through the carburetor LOL

[@smms5056]

👍👍

[@kdautomotive1165]

Should asked I have a good cam crank on this. 3 groups of 4 in the 1 cam square wave. Just had one last week that was counting ghost misfires due to crank sensor air gap but would only happen during 2st warm up trip of the day

[@themechanic6117]

I love the joy that comes over you guys when it starts

[@SimplyDiagnostics]

This job was so much fun, Ivan, you're awesome 👍

[@defendermender4959]

Scrap Heap Jeeps!

[@SimplyDiagnostics]

@@defendermender4959 🤣

[@misterhandy5121]

because it was its companion firing

[@PineHollowAutoDiagnostics]

Hi Steve, hell yeah man, it was a blast having you ride along on the Staten Island Express! Hopefully next time won't be too long in the future :)

[@smms5056]

👍👍

[@Mako-sz4qr]

haha no tooth pick required !!! love it.

[@gillgetter3004]

Back in 70’s a friend bought a motor home at auction. Wouldn’t run 383. Distributor was off 180 degrees. I can’t remember how I diagnosed it. But we had same reaction when it ran

[@mikechiodetti6737]

Very good diagnosis! Those old straight 6's were great engines!

[@caduceus33]

Looks like Steve enjoys his trips across the Pond!

[@MegaGeorge1948]

@Jason Bowman If he does troubleshoot across the pond, he has to remember that British engineering logic is backwards. Like "o" = on. "1"= off. And watch out for those positive ground systems too.

[@rivergate]

@@MegaGeorge1948 News to me. Are you mixing your drinks and thinking of the martians? (Sorry martians)

[@MegaGeorge1948]

@@rivergate Check it out. Ivan even mentioned "British logic" in one of his past troubleshooting vlogs.

[@rivergate]

@@MegaGeorge1948 lol. Spurious myth. People should travel more, listen better, and not to be too quick to promote fabricated gossip :) Now if one was to talk about "red tape", I'd gladly join the spouting of gossip. Lol

[@Charles_Mulberry_7977]

There they are...the legends! Hey Steve and Ivan!

[@caduceus33]

The winner could get a slice of Staten Island pizza, or maybe a tube of Denso Anti-Seize!

[@jordydereus]

I want the denso anti seize! Its hard to get them... lol

[@daviddelle774]

Ivan isn't going to give up any of his prized stash of Anti-Seize!

[@williamwhite5407]

Your videos teach better than a school . God Bless !!!

[@Garth2011]

Mechanic: When and who replaced the sensor assembly? Customer: I did. Love simplicity...those engines had a good reputation too. The world needs more straight 6 engines under the hood ! They have perfect 360 divided by 6 firing orders in the least.

[@smms5056]

👍👍

[@DylanRabier]

You are one smart cookie Ivan 😉 Great to see you riding along with the Staten Island express. 👍👍

[@SmittySmithsonite]

I'm way late to the party! 😨 Another "no parts needed" fix! Sweeeeet! The critical thinking questions are making my head hurt, lol - I do better when I see something in action rather than trying to visualize it ... but I'd guess that the spark line being 2 cam humps over from the first pattern was due to it firing 180° out of phase, since the cam turns at half the speed of the crank. Nice work fellas! Wish all you guys were together every day making vids - that would be pure GOLD. I'm sure none of you would mind that one bit, either! 👍😎🍻

[@stigonutube]

Kudos, see those happy faces when it started..priceless :)

[@baxrok2.]

That was awesome guys! Kinda like the Chevy van you did a year or so ago Ivan. Well done and looking forward to more SIE challenges!

[@firebir11]

Good find! This is why , from experience, always buy OEM.

[@neilmurphy845]

Ya because you'll lose the money you saved because you'll have to buy 2 instead of 1 oem

[@utuber2940]

firebir11 yeah I did my water pump in my 2001 dodge ram 5.2 went with non OEM thermostat it's now stuck open!! thanks advance auto!!!!.😡

[@neilmurphy845]

@@utuber2940 that must be so annoying especially if it's cold

[@djentyman4002]

OEM needs to be done for the important parts. Especially catalytic converters but i find aftermarket radiators work just as well as OEM

[@neilmurphy845]

@@djentyman4002 ya that's true

[@billyyoder8171]

Thank you Ivan and Steve. Good job. Have a blessed and safe week.

[@8power0]

ONE OF MY FIRST HERO JOBS WORKING AT THE DEALER ON A POLICE PORTAL JEEP THANKS AND THE ISLAND EXPRESS ROLLS ON .

[@tracybeme1597]

Start at simple stuff first; we need fuel, air and ignition (electric spark). You checked fuel rail pressure, it's good. didn't check air and went directly to ignition. Very good guess. Now pull the oil dipstick and valve cover cap. Check for engine sludge. If the oil cap/dipstick is heavily sludge-up, your sensor heads are probably carbon coated and giving bad readings. Diagnostic tool showed good readings. So it's not sensor related. Let's walk back, customer replaced a part. Check the part setup. Which you did. Very good diagnostics. Truck runs fine. In the old coil and wire ignitions, we just rotated the wires back at the rotor cap. That's easier than replunging the distributor.

[@ggstephens50]

Ivan the 4.0 uses the cam signal to time the injectors and coils as any other engine does. With out any reference pulse from the crank it depends on the raise and fall of the cam signal that should occur midway between the group of crank signals. If cylinders 1 and 6 come up to tdc at the same time the computer can decide who is on compression and who is on exhaust by the direction the cam signal is moving. For example if the cam signal is moving downward the computer knows the next group of 4 crank signals represent number 1 tdc , 360 degrees later the signal will be moving upward this would mean cylinder number 6 is on compression. In either case if the cam signal was out by 360 (crank) degrees the same coil would be triggered and spark would happen in both cylinders at the proper time. What would be off is injection timing. This may cause rough idle or off idle tip in problems. So does a rising cam signal represent number 1 tdc or number 6 tdc? To answer your question, yes it would run

[@calholli]

On my 99 grand cherokee with the 4.0.. It ended up being BOTH the cam and crank sensors. I swapped cam sensor and it worked randomly.. So swapped out the crank sensor and put the old cam sensor back in--- it ran for a day or two, and I ended up putting on the new cam sensor as well. Both were intermittent at the same time. It was a pain. :)

[@cclngthr]

Find if the cam/crank sensors are any good. That crank signal doesn't look right to me. Also if aftermarket sensors, they may not work right with Chrysler.

[@cclngthr]

@skat kat The aftermarket sensors operate on an assumed value, which is why they don't work right. On jeeps, anything other than NTK/OEM on oxygen sensors sends the computer into a tailspin because the computer was configured and programmed for the OEM only. Ford is the same way with most of its parts.

[@adamtrombino106]

Your buddy had it right regarding the Snapper's reporting of cam/crank sync lost. I dunno why they seem to always say that, but on GMs, I've double checked with a Tech 2, and they say 'yes' for cam/crank sync when the Snapper says no. I even had a friend who is an engine rebuilder verify with a dial indicator that the engine ( a 4.3 vin W in this case) was mechanically in time, with a new GM distributor, and the tech 2 said yes, and the Snapper STILL said lost. At least on the Fords and Jeeps you can move the cam driver around. In your case, Lord only knows what the root failure was.

[@longfieldcommercials]

Being a 6 cylinder waste spark system,I recon i would run 180 out,but it runs,an oem sensor is really required then set spot on,your our some,good video .thanks.

[@fergalkeegan9262]

Static ignition timming lives, nice one

[@dunckeroo1987]

Q.2 Ans. A lot of systems will double fire until cam sync is confirmed, while starting. On this motor it is only relevant for injector timing, due to only having two coils. Q.1 Top dead center should be set to syn with dist so injectors will fire at right time, even if the electronics will try to 'smooth' the timing out. Poor mechanical syn will confuse the system, as what was corrected in this video.

[@daveyio87]

I've been doing a lot of thinking lately and i think i would like to become just as good as you, keith, eric o at diagnosing vehicles with complex problems. I work for a GM dealership and i'm good at what i do but no where near the level of you guys. I've been watching everyone's channel and learning tons of new way to approach problems and really helped me out over the past few years. My dream would be to get away with heavy repairs and do what Keith does but where I live.

[@PineHollowAutoDiagnostics]

Diadnostics is a very rich field; the learning curve always remains steep, which makes it interesting and exciting! The hard part is to figure out how to make it profitable...efficiency and process is key.

[@ФГБОУВОПензенскийГАУ]

@@PineHollowAutoDiagnostics Иван, а тебе удалось сделать прибыльным? Расходы на инструменты и приборы окупились?

[@tiredoldmechanic1791]

Why not pull #1 plug to make certain you're on TDC on compression? It's the quick and easy way.

[@parna121]

Great video.. As always I have learned something new.. but I'm with the timing light approach to diagnose this one. A good one will tell how many degrees it's out. Quick feedback with very little work.. The flip side is how many people carry timing lights working on today's cars in Europe.. Only my ten cents input.

[@robinsonsmotorcycleandauto3929]

Very common on the 4.0 liters. The new assembly's usually come with the tool to align those properly. Obviously OEM part would be the best fix but sometimes the shops refuse so gotta make the best out of it. There is two or three available tools to set these in correct location. Good job guys had no doubt you would get it fixed

[@diymisfit_Mechanic_UDX404]

I think it would run with the waste spark, but but not with the injectors putting fuel in at the wrong time. So I would say no, not without a bunch of backfiring. This used to mess a lot of people up rebuilding a SBC, because when you install the timing chain with marks lined up on gears, it was 180* out. So before dropping the dizzy in, you have turn the crank one full revolution before installing it.

[@autocarespecialist9590]

customer states i just went on reverse and the car stalled... N O P E ...great work brother,

[@roxanneabbott8424]

Awesome, loved to watch these case studies!!

[@scottschulte1157]

Excellent fix!

[@pookatim]

I was sure it was a timing issue but had no idea how it got so far off. Good "visual inspection" eye to notice that not just the speed sensor was replaced but the entire unit. Back in the days of mechanical distributors, it was fairly common that a backyard mechanic would pull out the distributor and put it back either 180 degrees off or just one or two teeth. I didn't know Jeep was still using this method when they eliminated the mechanical distributor. Good to know!

[@markferraro5250]

great job Ivan and Steve

[@flatratemaster]

Seen that issue a couple times fyi the sensor is still available from jeep, but the shaft part is long discontinued

[@Nudnik1]

"Heep starts no crank"... I drive FLA to NYC every month. The majority cars I see stuck on 95 are: Mercedes-Benz,BMW and Audi then Jeep.. Keep em coming keeps my rusty Chevy roll back and shop busy...

[@MrJoey1570]

Took that ridiculous coil plug rail off and replaced it with the K Suspension Viper coil mod so glad I did...2001 XJ

[@jimhaines8370]

Compression or split overlap where both valves are open evenly is the other choice for piston at TDC exhaust is closing intake is opening

[@MY-bw2nb]

Go back in time old school 1 pull out number 1 spark plug 2 turn over engine bu hand till you feel compression now keep rotating engine until timing mark on crank lines up with mark on block this is always the base timing for anything you have to be #1tdc compression stroke same starting point for any engine you even need this to line up cams distributors if 1tdc is off nothing else works properly

[@spelunkerd]

When I was a kid I owned a little Honda civic that would stumble and then die, leaving me stranded every year or so. Then the next morning when I walked or hitchhiked back to the car, it would work fine, it was a bear to diagnose! I never did solve that one, but it left me with the persistent curiosity left by the 'one that got away'. If only I had a scope that could run off the battery, ha ha.

[@sumduma55]

I had a ford f250 that did that to me. It would run fine then all the sudden die and not start for several hours until it cooled down. It could be days, weeks or months in between episodes. Had spark, fuel pressure, it triggered the noid lights, everything it should have done. Like you, I had no scope and being a 95, no obd port. Also, being 15 years ago, I had no clue about the benefits of a scope. After firing off the parts cannon a few times, installing an in cab fuel pressure gauge and seeing it wasn't a delivery issue, (I have had issues with the tank selector swith in the past) I replaced the distributor (had to pull it and separate the shaft to change the electronic ignition pickups and found it was only a little more to replace the entire thing) and never saw the problem again. Evidently something would cause it to fire at the wrong time until it cooled down. Between towing and changing parts, I probably spent enough to purchase a scope at today's prices.

[@arthurfricchione8119]

Ivan, you and Stevie are the best. Good video. Let us know if you find out anymore info 👍👍👍

[@rusty6666]

Nice fix Ivan as always thank god for the scanners and the tools for the new cars of today... thanks c u in the next video.....

[@deepsquat600]

Wow I'm impressed with myself on that one I called the fix right off the bat by the sound must be because of my new 55-inch TV on the soundbar I have LOL

[@nebursalcido1867]

As always u done good sir old school 🎉🎉🎉🎉🎉

[@Randomgearhead]

the distributor models won't run with them 180 out i know for a fact. i doubt that style would run with it 180 out, but i think the cam pickup only controls fuel injection timing thats why it seemed to run fine even with 20 degrees on the cam sync. the crank sensor is for the ignition timing and it can't be adjusted. im sure the instructions say to install the cam sensor with no.1 at tdc compression stroke?

[@shaunadams3170]

Dang I'm going to have to watch it again. I thought the ignition timing changed when he moved the cam.

[@shaunadams3170]

It controls the timing of both ignition and injection

[@willispower9493]

So Ivan here is my approach. Since the sensor is set based on cylinder 1 TDC and I if I suspected that the sensor was not positioned correctly this is what I would do. First I would not move anything and I would take out the number one spark plug. I would rotate the crank to TDC, which of course could be 180 off. and with an air nozzle I would shoot some air into that cylinder, you can tell if there is any resistance because both valves should be closed right? If I am on the compression stroke then when I shoot air into the cylinder, and it might and usually does move the crankshaft. Once I was sure of the compression stroke and the crank was at TDC I would look at the sensor timing position. I would know right then and there if it looked right or if it was 180 out. An old trick I used to use back in the point ignition and HEI days. You are not wrong necessarily in how you approached this it's just we just have different approaches to the same problem. I hope someday I have the opportunity to drink a beer with you, Danner, and Eric O. Until then keep trucking on.

[@richardnilsen8950]

The last mechanic did not Comprehend TDC for Installation back to school For him 🤣👍 great vidio

[@throttlebottle5906]

end of video critical thinking part, no it shouldn't run or very poorly if it's 180 degrees out of time, because it wouldn't fire the fuel injector at the correct intake port timing. without thinking too much harder, it would be spraying fuel into the open intake valve around IN/EX valve overlap (non compression stroke), which is also when it would it fire the spark plug of the waste system, that should result in a large bang if it ignites the fuel, likely out the exhaust and intake both at once

[@somerandomguy3868]

Nicely done! Just what it needed, not the OEM sensor but it sounded good

[@weshawkins7165]

Good diagnosis. I’m looking at buying a newer scan tool. Do you purchase scan tools like Autel through Amazon?

[@billziegmond4943]

Great way to spend a Sunday afternoon. I spent most of mine working on a Saturn Asta 1.8 cmp cpk corelation error ugh!!!!!!!!!!!!!!!!

[@mjmcomputers]

If only spark is controlled by the cam sensor and it’s a wasted spark system then 180 off wouldn’t really matter. Now 1 tooth off like this one was does matter. Nice find on the fix. Odd it ran cold, maybe different timing advance when the engine is cold?

[@richardcranium5839]

@3:35 the cam goes high on the second notch of the crank then goes low on a second notch. so you dont have 3 complete cycles of 4. at 19:30 your cam goes high in between a group of 4 and goes low after the third group of 4. this is allowing the computer to "see" a full cycle. that way it knows to fire at the end of 4 and also knows where the cycle starts and stops for not only ignition but injector timing since the shutter is open one complete revolution and closed on the second. 1-5-3 closed and 624 open or vice versa. same as the distributor it turns half a turn for each turn of the crank. if when you had that on tdc you would have looked to see if the crank signal was high or low you could have used that along with your cursers to actually display idle ignition timing on cylinder #1

[@scuba422123]

wow on waste spark it would run! that 6cyl was a good motor from way back I think 89 steve looks like he was over worked....he is a great guy I hope to meet everyone at tst I think wear can effect a known good wave form on timing t

[@thirdeye530]

I knew the cam sync was off as soon as I saw the scope pattern. All the Jeep 4.0L cam crank signals are the same. The rising/falling edge of the cam sensor should be in the middle of the large gap of the crank sensor signal.

[@Johnkb2059]

I would have checked the ignition timing with a timing light

[@KevinWindsor1971]

Its a coil on plug system. Where would you connect the timing light?

[@Johnkb2059]

@@KevinWindsor1971 it's a waste spark system and it has wires

[@lloydtucker]

You would have had to use the inline timing light between plug and c.o.p Then aim the light at the marks on the crank

[@CubasAutomotive]

This was a challenging vehicle for sure. Once a plan of attack was developed, seemed to go easier though. It would've been easier or faster with a known good correlation waveform, but you still did exceptionally well without it. Seriously great work Ivan.

[@PineHollowAutoDiagnostics]

Thank you for the kind words Cuba, glad you enjoyed this one! Yeah sometimes lack of information forces the technician to get creative haha :)

[@tam1381]

Was wondering if you could have checked the timing with a timing light ?

[@CubasAutomotive]

Timing light is inductive... you'd need a spark plug wire/ignition wire. This is a coil pack system. 3 coils integrated into 1 big pack, with only boots over plugs. There's no way to connect a timing light.

[@tam1381]

@@CubasAutomotive Thanks i did not realise that there were no plug leads.

[@CubasAutomotive]

@@tam1381 No problem. I figured a thorough explanation will help others as well. Good thought process though. ..😉

[@johnhnetkovsky8917]

@@CubasAutomotive Sure there is a way,used to do it on quad 4 engines.pull coil pack up install HT leads from coil to plug.Install light or spark tester.

[@CubasAutomotive]

@@johnhnetkovsky8917 oh sure.... that's a way to use a timing light also, but I was also considering Ivan, and what he carries as a mobile unit. Much less equipped than I for sure.

[@bostedtap8399]

Great job both, thanks for sharing.

[@jeremyanthony9300]

Way to go Ivan.

[@JoesAutoElectric]

Good job guys. Such a simple system and yet...nothing is simple lol

[@olekminsk]

Опережение зажигания надо выставить при помощи timing gun. Точно так же как и на твоей XL-7. Подключаешь timing gun к катушке первого цилиндра, отключаешь автоматическое опережение в ECU (для Suzuki очень хорош Suzuki viewer для Windows, для Jeep тоже можно найти, но я думаю в твоем сканере есть эта функция). После этого вставляешь требуемое для данного двигателя опережение зажигания. Когда попробуешь один раз сразу все станет понятно.

[@PineHollowAutoDiagnostics]

Не, на этом Jeep умная система зажигания: Комп смотрит на положение коленвала и сам регулирует опережение. Suzuki XL7 примитивнее; смотрит только на датчик распредвала, который можно выставлять с помощью timing light :)

[@zx8401ztv]

So it was so far advanced because some plonker replaced the sensor way off. But the engine management is still not happy, if it drives ok i would run away fast lol.

[@johnc4352]

Ivan, tell the pizza guy to only cut the pizza into six slices because you can't eat eight slices by yourself.

[@throttlebottle5906]

i could hear it sneezing into the intake when cranking, which says timing too far advanced, diagnosis over at seeing new part and hearing it. some stooge popped it back in out of sync or it needs rotated. probably a fixed style retainer so no rotation and needs teeth aligned right, so someone gets to do the job a second time, whilst eating crow :))

[@ganeshnarayan5505]

hey guys great video very smart with the scan tool just like Eric o.

[@rrmech11]

👍👍 Nice job guys

[@frosty98412]

12:00 i would maybe pull the spark plugs from all cylinders except for number 1 then rotate the engine to identify when it is at the compression stroke and then check the timing on the sensor

[@wyattoneable]

Steve looks tired. I think Staten Island wore him out. That's funny "one tooth off" but Steve has two teeth missing. Those 4.0 are great engines. Did the spark occurrence change because it's a waste spark system?

[@yurbeeinwatched]

Nice quick vid. The only thing that I wonder about is the cam/crank lost PID. Is that a history thing? I have never really paid too much attention to it. If it is a history related PID that seriously has some value.

[@throttlebottle5906]

ohh, I see shiny new parts in there, so who replaced what and got it set wrong ........ that's my first thought at seeing new parts, and hearing runs while cold then doesn't, open loop/closed transition :)

[@tomsmith29]

the amazing Ivan !

[@jaredstrehlein5605]

Crank, Timing, Fuel/Air, and spark. Back to basics

[@adotintheshark4848]

The cam position drive was one tooth off, so was Steve!

[@georgebonney90]

Good job gentlemen 👍🎃

[@richardfurber2947]

How many hours would be charged to this repair?

[@Ryder4u1313]

How does a trigger work on the scan tool?

[@Agent-nw3it]

The tooth joke :):):) Is the next one the Audi? Let's learn about the over-engineering issues :)

[@Craig1967]

If the cam (I goofed and put crank here instead) sensor was off by 180 my guess would be that it would run, but the fuel injection would be way off. Assuming a 1-2-3-4-5-6 timing, the waste spark system will still supply ignition. It would run very rough, since the fuel would lay on top of the intake valve during the power stroke rather than intake. It would then get sucked in as a liquid rather than a spray. I am assuming the engine crank shaft has each cylinder 60 degrees away from it's neighbors. I am not all that familiar with the straight 6. Do I win? LOL - great job as usual.

[@Craig1967]

@@NoWr2Run Yes, you are correct. Cam, not crank. Don't know how I managed to mess that one up. Thanks ! Honestly I was thinking cam sensor, but somehow my fingers typed crank sensor. I guess I have a rogue typing subroutine running. I have the same issue with my vocal subroutines as well. Sometimes the wrong word comes out. LOL!!! Guess I am getting too old.

[@NoWr2Run]

That's because there's too many DAMN SENSORS ON VEHICLES ANY MORE Craig. I did it twice this year ordering parts for my Jeep, had to send them back, I was like you, HOW THE HELL DID I DO THAT, IT'S EASY SIR. I'll work on my first GEN. CAMAROS ANY DAY, THOUSANDS OF DOLLARS OF SCAN TOOLS NOT NEEDED. I do enjoy watching Ivan though but some of the stuff goes right over my head. I deleted my previous comment.

[@Craig1967]

@@NoWr2Run I was very lucky when I was 18. (I am 52 now) It was around 1985/86 when I worked for a Porsche/Audi dealer specializing in electronics. They trained me on fuel injection (3 day course) and I soaked it all in. Now-a-days that sponge doesn't soak stuff in as quickly, and a lot of it leaks out. Luckily from my mid teens thru 21 years old I had a Chevy 305 and put a set of headers, high rise intake, and several different carbs that I tried. So I had the best of both worlds. Don't be intimidated by fuel injection. If I can learn it, anyone can.

[@PineHollowAutoDiagnostics]

Craig, you nailed it! Ignition would still work due to the waste-spark design, but the injector timing would indeed be one crank revolution off :)

[@NoWr2Run]

I hear ya Craig, I'm 53 & YES the sponge comment is SPOT ON, LMAO. See you were right as was I SAY'S IVAN THE GREAT.

[@blitz8619]

Lol i like how people blame the part. When it was the incompetent person who didnt install part correctly.

[@JSchrumm]

Did the internal parts on the sensor rotate? No way it jumped a tooth on the gear without being loose or having an internal mechanical issue. WYF?

[@NorthstarAutomotive]

Nice channel, subbed and featured.

[@PineHollowAutoDiagnostics]

Thank you!

[@smithraymond09029]

1:38 What type of connectors are those?

[@jeffbecker9809]

Never mind my idea. The dist may be off but I dont think 180. I would check the ign module next.

[@davesage9190]

SO what's your thinking on the warm / cold start thing??

[@sumduma55]

The computer will advance and retard the ignition timing partially based on engine temp. There are other inputs that are ignored that can affect this timing adjustment before the engine is at normal operating temperature too. If the cam timing was already off, this adjustment once the engine became warm could be too much. Ivan said there were 13 teeth on the gear. The cam and distributor (which this is using a legacy hybridization of) turn at half the speed of the crankshaft so this would put it roughly 13.8 degrees ouf if off by one tooth. (13 teeth times 2 to equal a full crank rotation divided into 360 degrees which is a full revolutiin of the crank). 13 degrees can be adjusted by computer timing durring normal operation depending on conditions. Add another 8 or 13 degrees and there is the failure to run. Hope this helps in understanding why it could run cold but not warm.

[@dans_Learning_Curve]

@@sumduma55 Thanks! I was wondering about this.

[@sumduma55]

@skat kat couldn't tell you which way it was. My initial guess would be advanced seeing how it was backfiring through the throttle body. But that's just a guess.

[@animalcorvair]

what do you think about one of these?LAUNCH X431 V PRO Bi-Directional Scan Tool Full System Scanner are they any good?

[@JoelAutomotiveInaction]

I use it every day I love it , but the first portion on top I change the name and input vehicle information because that is how it save the file that way in the future to search record is easy

[@shaunadams3170]

He used the diagun in another video. It's the small version of the of the pro and my coworker has the matco version of it and it has functions the modis edge doesn't. Eric O. At SMA has both and showed them both in his last W.U.T.

[@animalcorvair]

@@JoelAutomotiveInaction thanks

[@frugalprepper]

I watched this while standing in line to ride a a roller coaster!

[@johnshuttleworth6879]

This is awesome 😎

[@liviu2004]

21:05, when trigger jumps like that, filter that channel, because it was jumping on the noise.

[@1fnjo790]

Your buddy has a good sense of humor.I think Michael Strahan would have punched you for telling him No toothpick is required.

[@pl5882]

Stuntman can fix it! 😈🔥

[@arnemaeschaelck5012]

Fire her up, STUNTMAAAAAAAAHHHN

[@gbowne1]

Reverse stalls are fun lol definitely would be the end of that one Steve,

[@donnierobertson3088]

Nice job

[@thunderstruck5484]

Awesome video wow

[@jacquesdaoud4263]

But how turned it a tooth it's head turner nice job

[@Anonymous-it5jw]

2nd notch trigger = 180 degrees off.

[@rubengarcia6920]

Bad wire in back of engine head seen a couple of them

[@zoneb609]

yeah sure, it wasn't that. And not because you see bad wires thats going to always be the case. Test and fix

[@ericcorse]

That was cool.