Lexus Random STALL...After Engine Swap? (RX350 V6)
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- Опубліковано 2 жов 2024
- In general, Toyota and Lexus vehicles are very reliable...
However, this 2007 RX350 V6 is on its second engine at 190k miles.
It got towed to a local shop because it randomly STALLED out on the owner.
They said the EFI fuse keeps blowing, and the FUEL PUMP RESISTOR gets red-hot...
They replaced the fuel pump, but obviously that did not resolve the problem.
Here we go...place your bets now. What is going on with this CRAZY Lexus??
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Enjoy!
Ivan
I love the "Negative parts required" (indicating remove stuff to fix the problem).
Usually, this only happens with the removal of remote starters...
thats when you know Ivan's really sick!
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!
YEP, new one for me too!! So simple!
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
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.
@@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.
@@CoolerQ good point 👉!
I was attempting to think if there would be some conditions where it wouldn't work. 🤔
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.
Damn that really takes guts to go blindly zipping in self tappers on a modern vehicle,,, good Lord man you have no idea what you're gonna be destroying...
Nice use of the amp clamp. At 73 and I am still learning, hmmmmmmmmold dog, new tricks!
This car got "screwed"
Brilliant way to split the circuit! Thinking outside of the box to discover a fiddlers fumble. -PR as stated for the win.
Classic example of my buddy has a friend who is a mechanic and he only charges a 6 pack.
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!!!
Literally the ONLY channel I do that for too - I appreciate humble talented people.
Yeah I do too, wish everyone who watches would hit the like button, would help the channels algo's
I appreciate the support! :)
It is disturbing how people drive fasteners into something like that without even a thought of what might be on the other side.
Root cause = half assed work. 🤦♂
So Ivan, in SHORT, someone SCREWED this car up! Nice fix!
Good one LOL!
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. 👍👍🇺🇸
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.
@@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.
@@ehsnils Actually I reused the original factory bolt that they left in there...held up the shield just fine lol
@@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.
@@ehsnils
Even if the hole is ripped clean through mudguard washers are your friend for a larger clamp area.
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!!.
Good repair, you're worth your weight in gold to these shop owners.
I guess you could say this car was...
"SCREWED" up!
😎
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.
People do such cheap,jobs drilling holes any where without thinking it causes problems
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!
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 .
These young kids can't get it down and we the customer suffer because of their lack of knowledge.
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.
Cause he's not a sellout!
I figure people watching these vids are smart enough to find the "Subscribe" button on their own LOL!
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
Ivan Sherlock Holmes solves another misterious short circuit 😅
Lol nice find
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.
GOOD VIDEO!!
Im definitely stealing the amp clamp idea , smart
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.
Great instructional video, Ivan. Easy for the beginners to understand.
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.
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. 👍
I HATE beepers and buzzers of all sorts haha
@@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.
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.
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".
Excellent work... Greetings from Venezuela. I like watching your videos and seeing how you solve automotive problems
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 $.
An innocent sheet metal screw in a fender liner.... Love watching!!!!
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!
Bet that shop owner charged the customer for a problem the shop caused, you can't trust em, cheers
how much money could the car owner have saved if the mechanic would have just put the bolt in the correct spot /great job finding the short/it the great feeling of the ah-ha moment
😂negative parts required❤❤❤
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 $$$$$"
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.
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!...
I always assumed it was for the ignition system.
@@topher8634 now we know!
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.
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.
Third.😆
Ivan... good diag, find and fix.
Interesting that the current spikes were regular and not random. I wonder if the frequency was a harmonic of the engine RPM.
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.
Real great Vid Ivan, I used a mini buzzer for shorts too, works great, just a little annoying...
Buzzing and beeping interrupt my thought process 😅
Insane case study here !
Question for you Yvan, I have been using Pico 6 for a long time because I greatly prefer it to version 7, why do I need Pico 7 to open your waveforms? 🤔
(When I try to open it with Pico 6, I have this error message: The file was created with a newer version of the application)
And yet, you are using version 6.... 🙃
Thanks a lot !
Hmm do you have the latest Pico 6?
Another problem solved only requiring some black tape.
Me thinks this is an owner caused problem... Nice work as always Ivan.
Excellent video, I have learned tons from you. Don’t ever quit making them. Good job!
Hi Ivan . You always find the problem. Even the little prick in the harness ⚒🔧🛠🇺🇸👍💥🤣
Toyota rarely breaks, but when they do they can be notorious to fix
Ivan
Love your breaking down on all the circuits.
Lesson to learn here - do not replace factory fittings with random self tapping screws! 🤣
I think the lesson is, look behind where you're drilling. Maybe the original mounting location isn't usable, or more likely someone is installing an aftermarket box.
@@major__kong I actually reused the original fender liner mounting tab....with the original bolt that was STILL THERE haha
That trick with the amp clamp was awesome Ivan? Question, why don't mechanics use the short circuit finder ,the E something 300, I think?
This is definitely Hanlon's Razor at work - "never attribute to malice that which can be adequately explained by neglect, ignorance, or incompetence"
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.
Great job Ivan! Once again! Keep doing what you do!
That fender was fixed with gorilla thinking skills when the engine was swapped. If they only took another minute to think it through!
Just put an engine in a new to me 2009 RX350 and it starts then stalls. The fuel pump resistor is completely missing (shady car lot where I purchased it probably took it), my question is will the car run without the fuel pump resistor in place or will it start then stall? I'm going to see if I can find the part locally just hoping it likely be fixed by installing the resistor.
..wow, just One Little Screw in the Wrong Place.. ⚡🚫
Ivan!! You are on fire with these diagnoses, lately. Such genius with the amp clamp to tell you which way the electrons were running!
There should be a section in chapter 1 of the Mechanic 101 textbook explaining why you don't drive screws into places that might have anything remotely important behind them. At least it wasn't a fuel line ⚰
Very impressed with your confidence… at finding the short even when it wasn’t showing up… in your under the hood wiggle tests!
A satisfying result again. And i learned a new trick today with the amp clamp.
lol, of all the things to disable a vehicle, this one is hilarious and a bit screwy! Detective Ivan always finds the culprit!!
Good video as allways I learned something again thanks for sharing
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
Wow. A lazy mechanic who didn’t have or want to grab a larger washer just grabbed a sheet metal screw and caused all of that. What a great diagnosis. Ivan is the NPR King.
Excellent work as always. Learning more and more. Now the real question, why did this 2GR even need an engine swap?
The addition of the amp clamp was pure genius (it did take me moment to understand why it worked). Great diagnosis.
This channel is like Scooby Doo for adults!
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.
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
Don’t you wish you could hand the repair bill to the guy who added that screw?
"Negative parts required" 😁 ... Fantastic as usual
Anyone interested in fuses with built-in led blown indicators
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!
Imagine what this guy can do with two hands!
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.
Indeed. Some people still ignore the warnings before it's too late :(
@@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?
@@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
@@PineHollowAutoDiagnostics oh gotcha. Unbelievable, a couple hundred dollar repair leads to a 5-8k engine
Very good video Ivan, those boys when engine swap damaged the harness
Much efforts are needed to identify and correct the damages caused by one certified idiot. Great job as always Ivan!
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 🙄
well done Ivan, i'm sure that was harder than you made it look
The white wire gash. Made by a guy with a screw gun and a screw WOW. So who pays. the guy that put the engine in. Your just has sharp as screw that screwed the wire. Good show.
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!
The NPR with a twist. I wonder if the owner installed that screw.
I wonder why a resistor and not PWM control. EMI?
Great job Ivan your a electrical genius
That was an expensive screw for an expensive car.
Dr. Ivan! you forgot to say no parts require :)
Absolute genius, you never cease to amaze me!
Wait a toyo has a common issue??Thats one serous one😂
Great training but sometimes we need some drawing
Your process is gold, Ivan!
The resister getting hot on 12 volts is odd, wires should also be getting hot, I would check voltages on the circuit, it should be dropping voltage on the high current trip.