Lexus Random STALL...After Engine Swap? (RX350 V6)

[@larrywalker7759]

I love the "Negative parts required" (indicating remove stuff to fix the problem).

[@HouseCallAutoRepair]

Usually, this only happens with the removal of remote starters...

[@aarontayag473]

thats when you know Ivan's really sick!

[@pingpong9656]

That amp clamp trick to chase the short is genius - so simple and so effective - why did I not ever think of that! Well done Ivan!

[@dans_Learning_Curve]

YEP, new one for me too!! So simple!

[@tallerdechepe5303]

It's also new to me... And I will put it into practice when I have a similar case to measure the amperage level that a fuel pump should have when I suspect that something is wrong

[@CoolerQ]

Keep in mind it measures the total current flowing in the clamp, so if the current is going out and coming back on separate wires in the same harness it won't show anything on the clamp. Fortunately, cars usually don't have ground wires in harnesses, but if the short is more complicated you never know.

[@pingpong9656]

@@CoolerQ That's why the connector was disconnected. If somehow you got multiple shorts to confuse matters, you could still test wire by wire at points along the harness.

[@dans_Learning_Curve]

@@CoolerQ good point 👉! I was attempting to think if there would be some conditions where it wouldn't work. 🤔

[@agostinodibella9939]

So Ivan, in SHORT, someone SCREWED this car up! Nice fix!

[@PineHollowAutoDiagnostics]

Good one LOL!

[@thk7513]

Nice use of the amp clamp. At 73 and I am still learning, hmmmmmmmmold dog, new tricks!

[@GarnConstructionInc]

Brilliant way to split the circuit! Thinking outside of the box to discover a fiddlers fumble. -PR as stated for the win.

[@Garth2011]

That was a good trace down Ivan. Interesting to know the amp clamp can be used to determine direction of the short. LOVE the "test lights". I should head over to a local salvage yard and get some tail light harnesses from the incandescent bulb type vehicles they have.

[@ootyguy9805]

Exceptional diagnosis. With Ivan's video, I always hit the like button first before watching because I know it will be interesting and I will be learning something! Great job Ivan as usual!!!

[@pingpong9656]

Literally the ONLY channel I do that for too - I appreciate humble talented people.

[@JohnSmith-wb6kq]

Yeah I do too, wish everyone who watches would hit the like button, would help the channels algo's

[@PineHollowAutoDiagnostics]

I appreciate the support! :)

[@brianw8963]

More than likely whoever did the engine swap removed that liner for access, and probably put the self tapper in. If that was the case, He should have the honor of paying the PHAD fee. Nice work Ivan. 👍👍🇺🇸

[@scientist100]

Given that the tech did not remove the factory bolt makes me think that he just just ripped the splash shield away when doing the removal because time is money. I cannot trust shops in doing good work.

[@ehsnils]

@@scientist100 It could have been rusted in place. But the liner was damaged too, so a new bolt wouldn't have held it in place.

[@PineHollowAutoDiagnostics]

@@ehsnils Actually I reused the original factory bolt that they left in there...held up the shield just fine lol

[@ehsnils]

@@PineHollowAutoDiagnostics OK, I couldn't see the original and it did look like there was some damage to the shroud and I assumed a broken bolt there. Assumption is the mother of all Failures.

[@michaelslee4336]

@@ehsnils Even if the hole is ripped clean through mudguard washers are your friend for a larger clamp area.

[@billsmith2212]

Great logical process and fix . Some people use a cable tracker to locate the short in the wire . I think Power Probe has a similar device . A compass will also show the direction of the current flow . But you already have an amp clamp , why bother with other tools . This is the first time I have seen the amp clamp used for this . The current has a magnetic field in the wire .

[@dans_Learning_Curve]

Your experience is showing! Congratulations on the growth of your channel!! I don't think I've ever heard you ask for people to subscribe.

[@_RiseAgainst]

Cause he's not a sellout!

[@PineHollowAutoDiagnostics]

I figure people watching these vids are smart enough to find the "Subscribe" button on their own LOL!

[@stevenlane729]

The addition of the amp clamp was pure genius (it did take me moment to understand why it worked). Great diagnosis.

[@zx8401ztv]

Well done ivan :-D I was thinking the resistor block was internally shorting to the case with heat changes. I really didn't expect a screw, dam crappy people!!.

[@markket1154]

Good repair, you're worth your weight in gold to these shop owners.

[@keysautorepair6038]

Classic example of my buddy has a friend who is a mechanic and he only charges a 6 pack.

[@mikechiodetti4482]

THAT was a tricky one! I like the way you use the amp meter to "see" the problem. The lights work great also. Very good one Ivan!

[@greggc8088]

Good fix! A lot of folks would not have looked for the point of short and just ran an overlay and then a little later down the road had another wire damaged by that sharp screw.

[@billziegmond4943]

Great diagnostic method my friend. I worry about myself at times. I find it very satisfying chasing electrical problems. Like you the victory lap is always the best part. LOL

[@evantac]

Leaned new way to find short to ground Weapon Amp clamp + test light Good one Never thought of that,thanks Ivan

[@peterlworth]

Love the video. The only problem is that it seems like more shops are reaching out to you for there diags the whole industry needs to step up to your level. Thank you. Keep up the great videos.

[@tallerdechepe5303]

Excellent work... Greetings from Venezuela. I like watching your videos and seeing how you solve automotive problems

[@jamiepatterson1214]

It's interesting how some never think but in one direction and still don't fix the problem. It's always necessary to break multiple branches in order to determine which branch horbors the problem. That's what makes watching your videos a pleasure, Ivan. You know it's necessary to break branch connections to isolate the branch containing the problem. This process can be applied to several fields. Unfortunately, too many in these fields are nothing more than parts cannon people. They either haven't learned to isolate the trouble, refuse to learn, or aren't given the time to apply the process. If they refuse to learn or aren't given the necessary time, then either the customer suffers or someone else has to work on the problem. Keep up the excellent work, Ivan.

[@robertheim352]

Good progression to the flaw! I am very disheartened by sloppy workmanship and inconsiderate installers. I just had a trailer hitch installed by a dealership: the installer left one support bolt loose and the wiring harness interfering with the spare tire. I can even acquire the name of the person who installed it.

[@randallgoldapp9510]

I've seen this at work. Automation engineering mounted something to a machine on the outside of the cabinet and screwed one of these screws into the wiring harness on the inside of the machine.

[@fredautos]

I never knew 1:32 that Resistor Was for fuel pump speed!... But well we learn new things everyday..shorts are somewhat Hard to find tho.. But is always what comés last Victory Not Defeats!!. Ivan!...

[@topher8634]

I always assumed it was for the ignition system.

[@fredautos]

@@topher8634 now we know!

[@paulstandaert5709]

It is disturbing how people drive fasteners into something like that without even a thought of what might be on the other side.

[@topher8634]

Another victim of the self-drilling screw. I've had to repair countless wires in breaker panels and various electrical enclosures and repair leaks in sealed refrigerant systems because of previous techs zipping in a "self tapper".

[@The_Redkween]

Ivan!! You are on fire with these diagnoses, lately. Such genius with the amp clamp to tell you which way the electrons were running!

[@GreyRockOne]

Nice work Ivan! Always correcting someone's screwups.. no pun.. Did you ever think of a small, and not to obnoxious buzzer or tone device in conjunction with the test lights while hunting for a short to ground? It would have worked in this instance.

[@tomctutor]

I used to work in a communications co, installing and testing comms cable install in large buildings, Without a buzzer could never have traced those cables through many conduits and jbx's. 👍

[@PineHollowAutoDiagnostics]

I HATE beepers and buzzers of all sorts haha

[@pingpong9656]

@@PineHollowAutoDiagnostics Same - those things trigger randomly on ghost voltages - I think RF signals cross talk on other wires and they send you off on a wild goose chases... This current clamp is rock solid.

[@rodneymiddleton9624]

Self inflicted from previous work. That's why I can't stress enough to people that the factory designed it the way it is for a reason. This is a great diagnosis Ivan. Thanks!

[@vpimike2646]

Great instructional video, Ivan. Easy for the beginners to understand.

[@tedjohnson64]

Very impressed with your confidence… at finding the short even when it wasn’t showing up… in your under the hood wiggle tests!

[@abdul-kabiralegbe5660]

Whoever put that other fastener there could have taken the old one out, and reused it with a washer to strengthen the rip in the splash guard. Unless the old one was rusted in place and they didn't want to go to the trouble of removing it. The truth is that most times, these fast and dirty fixes don't cause issues (that can readily be traced to them anyway), so people become complacent and use these methods all the time. More often than not, if something comes from the factory a certain way, there's a good chance it's for a solid reason.

[@jamesgeddes797]

Masterful diagnosis! Sometime, a great episode would be an explanation of your test leads and banana plug adapters. How you put them together, what you use, and how you use them. Cheers mate!

[@zippo4059]

"Negative parts required" 😁 ... Fantastic as usual

[@OzFrog48Z]

Whew, what a relief! For a short time there a few minutes into the video I thought Dorman might be making replacement fuel pumps.

[@ablackformula]

Super interesting! The resistor block was getting to 400 degrees and super hot, because it was supplying the ground all the current it could when the fuel pump was being commanded on. The current was going the opposite direction from the intended path.

[@dongningprc]

Love it, Ivan. You are the best technician on KZbin, I think. Don't know if we can ever have one around here in Toronto closely as good as you are

[@additudeobx]

An innocent sheet metal screw in a fender liner.... Love watching!!!!

[@sixertogo]

well done Ivan, i'm sure that was harder than you made it look

[@mtntopMark]

Another excellent video Ivan! Whoever put that fastener in never thought of the consequences of where it might pierce through the fender. Well done sir.

[@randy1ization]

this is why they use plastic fastners or dedicated bolt holes.

[@dustcommander100]

That was a cool diagnosis! I'd never seen a fuel pump circuit with a resistor in it like that, and wonder if pressure measurement by the ECM switches the resistor in and out, as well as how many models had this feature. Great going, as always!

[@victorgonza4528]

Very good video Ivan, those boys when engine swap damaged the harness

[@jgeorges3061]

IVAN, AWESOME/GREAT enjoyed this one a lot ur so good in diagnosing brother i can not have enough fun learning and watching ur videos and approach thanks for sharing as always.

[@mlctrez]

This is definitely Hanlon's Razor at work - "never attribute to malice that which can be adequately explained by neglect, ignorance, or incompetence"

[@Sandmansa]

Your right Ivan. I would never have guessed it. But so typical. Someone taking the cheap and lazy way out by using self-tapping screws to "fix" other problems. Only to create another problem.

[@Charlie1012000]

A satisfying result again. And i learned a new trick today with the amp clamp.

[@jimharmon3404]

An excellent job Ivan! I suggest you should have used only one part, an oversized fender washer! LOL. So that is what they are for!

[@jeremyah78]

Your process is gold, Ivan!

[@petepeabody8905]

This car got "screwed"

[@bills6946]

Similar to the leaking outdoor air conditioner condenser coil. A tech or DIYer before you installed a hard start kit in the cabinet with a long sheet metal screw and hit the coil.

[@GeminiSeven43]

AWESOME!!! Once again you are a RockStar and through patience and basic logic you narrowed it down relatively quickly without the parts cannon. Too bad they didn't call you in before the fuel pump swap. Thanks so much for taking us along Ivan.

[@aranhaydar9195]

This was really fun! thanks for bringing us with you on your diag. one of those Brown Toyota relays got me confused too when i was diagnosing a corolla 🙄

[@keltecshooter]

Im definitely stealing the amp clamp idea , smart

[@Parknest]

This reminds of when I had a massive short to ground on my 1991 Toyota Celica. It was blowing the main 100A fuse and I'd lost most of my electrics. I methodically went through the OEM wiring diagam and then I noticed that there was a stray wire (what was left of the capacitor which supresses audio interference) that was shorting to the alternator body. Once that wire was removed the short was gone so my repair was also a negative parts required repair.

[@barryhipp3935]

Excellent video, I have learned tons from you. Don’t ever quit making them. Good job!

[@robbflynn4325]

Absolute genius, you never cease to amaze me!

[@hokie9910]

Those 3.5 Toyota engines are phenomenal, very strong and really the only issue is that rubber cooler line, spend the 175 bucks and replace that and you should have an engine that lasts a very long life.

[@PineHollowAutoDiagnostics]

Indeed. Some people still ignore the warnings before it's too late :(

[@hokie9910]

@@PineHollowAutoDiagnostics My understanding is that there are really no warnings…? It just ruptures of old age and heat cycles? Ivan, have you seen signs before they rupture?

[@PineHollowAutoDiagnostics]

@@hokie9910 Usually almost no warning. I meant I've told owners to change the rubber hose, but they ignored me and still blew their engine LOL

[@hokie9910]

@@PineHollowAutoDiagnostics oh gotcha. Unbelievable, a couple hundred dollar repair leads to a 5-8k engine

[@Gadget0343]

On that two speed pump control it starts in high speed bypassing the resistor, then after a short time switches to low speed pushing the current through the resistor to reduce pump speed. If the resistor is bad it will stall the pump. It is kind of rare but have seen is a couple of times. The easy way to do it is to just unplug the resistor and jumper the pins in the connector and see if it stays running when it switches to low speed mode. Lets see if that is the same issue I have seen. Nice job!

[@ws2664]

Now that was a good one, and I'm not even going to bust your chops about" no parts required" even though you didn't need to put parts in it, I really liked your trick with the amp clamp, you have to do more videos using the amp clamp like that. Nice one!

[@MrJoey1570]

I have a friend who works at body shop the owner refuses to purchase plastic push rivets so he scarfs them from totaled cars and he is forced to use random nuts bolts and self tappers

[@donkaiser6704]

Great technique for non-invasively finding a short to ground. Thanks!

[@artursmihelsons415]

Nice!👍 My first guess, when seeing fuel pump and fan sitting on one fuse, especially, after engine swap, was to check out power consumption for fan an fuel pump.. 😂 Excellent solution is to put clamp over all harness to get short circuit spot.. That was amazing idea! 😊 Before knowing this method, I probably, will turn apart all harness in suspicious points, in similar situations, as before. Back in days I did it for scooter diagnostic - turn apart one harness section where I get short between wires.. In that situation, at the end, that was the best solution, because multiple wires was melted together.. 😂 Thanks for sharing great tips. ❤ I have clamp meter, but that is for oscilloscope and still can help figuring out issues in similar situations..

[@themalewhale59]

Very satisfying diagnosis. Stick to the plan - the facts don't lie. 😊

[@jeremybaker3993]

Great job Ivan your a electrical genius

[@shuriKen469]

lol, of all the things to disable a vehicle, this one is hilarious and a bit screwy! Detective Ivan always finds the culprit!!

[@lvsqcsl]

Make no mistake about it: Toyota and Lexus vehicles like their maintenance. I wonder if that oil cooler failing was part of preventive maintenance? I would bet not. Now as far as the issue with the screw, I would say the tech that replaced the engine just drilled a hole and used a sheet-metal screw that went into the harness instead of unscrewing the factory one provided; hence the "down and dirty" comment from Ivan. I've seen you get "down and dirty" as well, Ivan. However, you do make it a point to inform the customer and then you refer to those as "Russian repairs." I don't think that could have happened to a 966. The whole car only has 2 wires probably. GREAT VIDEO!

[@timmehlittleloud2251]

Brilliant use of the amp clamp. So obvious now I've seen it. Quality m8. Hopefully save me some time in the future 👍

[@RobCarstuff9112]

I can only imagine what these shops are charging the Customer, "Yeah you had a bad fuel pump and a short circuit etc............. That will be $$$$$"

[@gideonz74b]

If you knew the resistor was getting super hot, you already knew that the resistor was carrying too much current, which means it spans too much voltage. So you already knew from the beginning that there was a short to ground on the side of the white wire, since the other side connects to the battery positive.

[@rrmech11]

Ivan Love your breaking down on all the circuits.

[@frankcarpenetti5776]

Great job Ivan! Once again! Keep doing what you do!

[@terrygillam2700]

Ivan you and Eric O,Keith Fazio,Raymond Rainy and the best,plus others who do DYI videos are the best

[@timgroleau1612]

The buzzer is super handy when your head is down in the engine compartment, by the fuel pump or under the car etc. Almost no $.

[@amundsen575]

another good diag. I find the best wire insulation repair is 3M Scotchkote - strong as can be, along with heat shrink or premium electrical tape. as I feel liquid electrical tape is junk.

[@MTLeopold]

Me thinks this is an owner caused problem... Nice work as always Ivan.

[@ChrisWilliams-pu8pj]

Great job Ivan. I really appreciate your insight on using the Amp Clamp to determine location of short. I have that one filed away. Thank you!

[@haroldhawkins9370]

Nice job Ivan, you're good at fixing what others can't.

[@eugened41]

This guy is the best I've seen on you tube! Ivan, Eric o. And Keith D. is the way to go.

[@gungadin6889]

Another Top Gun analysis with detailed step-by-step troubleshooting Ivans teaching style is point on, asks that the viewer do much of the thought processing n final cause. So many of todays auto techs are only yes no flow chart repairs with no analytical analaysis. Caused by auto manufacturing engineers making the judgement call that shop techs are not intelligent enough to do repairs other than simpelton flow charts

[@stevelang3171]

very interesting and clever. who'd'a thunk it? i especially liked your using the amp clamp down the cable nice diag Ivan!

[@robpeabo509]

it is uncanny the number of times only one wire in a harness has been damaged on not only the vehicles you show us, but also other KZbin content providers!

[@_RiseAgainst]

That's because these problems are to time consuming to diagnose. So your average shop usually gets it wrong.

[@davidgrisco1939]

Yep, follow the process. Well done Ivan!

[@Max_Thunder]

Nice work!

[@6996brandyl]

GOOD VIDEO!!

[@baxrok2.]

Unreal diagnosis. -NPR to boot. lol Thanks Ivan!

[@crasher88]

great video Ivan loved the tip about using the inductive amp clamp in conjunction with the test lights. Will defiantly have to put that tip away in my arsenal for a later date.

[@calholli]

This is why: "If it ain't broke- don't fix it". ;) Someone came along and "fixed" that wheel liner and now look what you did. hahah.. Great case study.. The tricky part was the "two speed" pump. Very strange, it's the first time I've seen one; and I still don't understand what it's for.

[@gvidvr]

I had a 1999 Ford Ranger that would blow the fuel pump fuse intermittently. Changed the fuel filter and problem resolved. At the time the truck as only 5 years old and under 70,000 miles.

[@jerryking2418]

As usual, brilliant diagnostic.

[@thomasmullaney9125]

Real great Vid Ivan, I used a mini buzzer for shorts too, works great, just a little annoying...

[@PineHollowAutoDiagnostics]

Buzzing and beeping interrupt my thought process 😅

[@tomlombardo85]

ALWAYS love your videos Ivan, you are the "Sherlock Holmes" of auto mechanics !

[@PineHollowAutoDiagnostics]

This was a fun one for sure 😁

[@abderrahimmark]

Two short to ground video in a row 👏🏻🥰 And I learnt a new technique. спаси́бо

[@greghanlon2235]

Ivan... good diag, find and fix.

[@speedy_pit_stop]

So I suppose the relay's thermal protection was doing its job (thus the clicking), until it wasn't. Good video.

[@PineHollowAutoDiagnostics]

Hmm never heard of a relay having "thermal protection" 🤔

[@Dansk55]

Excellent work as always. Learning more and more. Now the real question, why did this 2GR even need an engine swap?

[@richardnilsen8950]

Heat,vibration,points of contact basic fundamentals of short to ground diagnostics intense visual inspections The one tool thats not in your box 😁 great content Interesting 👍

[@stormyyoung6344]

Good video as allways I learned something again thanks for sharing

[@TheRealJerseyJoe]

Great diag... nicely done Ivan !

[@philipkuchko4860]

Ivan disconnects those junctions better with one hand than i can with two! (note bert blues comment.)

[@cyrexccc]

Great job Ivan! Good to go!! Loved it!