Diagnose No Crank No Start Like a ROCKSTAR with Bonus Track!!

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  • เผยแพร่เมื่อ 2 ส.ค. 2023
  • Diagnosing a 2007 Lexus RX330 with a no start from a fairly famous owner- car will not even crank, starter won't even click. Seems it may not be a starter issue but more a control or power issue to the relay.
    Also we catch up on some other cases and see how they are doing, plus a major update on the Schrodinger's Box Book by Dr. Ayman Kamar.
    To easily learn how to do these diagnostics visit www.schrodingersboxQM.com and get unlimited access to hundreds of training videos for only $3.49/month
    Other videos referenced in this epidode:
    Thermal camera Review: • Nissan Misfire + Paras...
    Locate an AC leak Like A Rockstar: • Locate an AC Leak Like...
    Puppies!! • Oh No What did Vicki ...
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ความคิดเห็น • 196

  • @harryfischer6741
    @harryfischer6741 10 หลายเดือนก่อน +12

    Matt, I can't thank you, Eric O at South Main Auto, and Ivan at Pine Hollow Auto Diagnostics enough. I have been watching all your channels for quite some time now. Along with Richard at Precision Transmissions. Since watching I have rebuilt 2 transmissions successfully. And I have learned so much about diagnostics. I purchased the Xtool D7 along with many other diagnostic tools that you guys use on a daily basis, hoping that one day I would be able to use them. The Xtool D7 sat on my desk until my neighbour was telling me that see had lost her key fob and had to tow the vehicle 100 miles into the city and a fee of $250 to program the fob. I piped up and said " I think that I can do that for you" she was surprised. Sure enough the D7 had a key relearn feature and what do you know it WORKED!! I has a hero and she was so happy!! She saved a ton of money and gave me $100 bucks. My first earnings for a diagnostic/programming job!! I am so stoked. Give me a check engine light and let me at it! Thanks so much guys!! Fist Pump!! What a feeling!

    • @SchrodingersBox
      @SchrodingersBox  10 หลายเดือนก่อน +3

      Fist pump!!! Great story!!

  • @ThunderbirdRocket
    @ThunderbirdRocket 11 หลายเดือนก่อน +7

    Great lesson , great story , great 70’s band & songs , great plot twist (the power side switched) , great e-book , great tools , great viewers’ community , great art , great kitten fostering , great ear on the awful compression sound , great automotive charity plans , great prices on everything , great idea for temperature gun use , great screensaver … 👍🏼 I appreciate it all . THANKS MATT !! 👊🏼

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +2

      hahaha I think you did great at summarizing it all! this was like a variety show episode lol.

  • @thunderstruck5484
    @thunderstruck5484 11 หลายเดือนก่อน +3

    All that invaluable information for 5 bucks? The Book! Wow that’s incredible thanks Matt!

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +5

      Thank Ayman!! he really made is possible.

  • @ws2664
    @ws2664 11 หลายเดือนก่อน +4

    Great vid as always, for your viewers who don't know why we use relays they are there so you can use a low amp circuit to turn on a high amp circuit, if you look at the wires the control side are thinner then the load side and you can buy relays in different amp ratings.

  • @Graham_Wideman
    @Graham_Wideman 11 หลายเดือนก่อน +7

    Sugarloaf "Don't call us" -- totally remember that tune fondly from the 70's! It's the song that uses the main guitar riff from the Beatles "I feel fine", which I also liked! (And it's a fun diversion to hunt around for other songs that are loosely based on the same riff.)

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +2

      Awesome man!!! The song is also biographical on the band having such a hard time breaking into the industry and getting a contract. The irony is after Green Eyes Lady, those same producers who rejected them called them back wanting contracts lol! I love revenge stories!!

    • @Graham_Wideman
      @Graham_Wideman 11 หลายเดือนก่อน +1

      @@SchrodingersBox Hahaha -- nice additional detail!

  • @advancedleveldiagnostics
    @advancedleveldiagnostics 11 หลายเดือนก่อน +5

    Great job, Thanks for sharing! I know from your other videos that you will try to figure things out without a diagram, I feel that on today's cars, it's just not really feasible to remember all the quirks of each car. I always look at a diagram from the beginning. Keep up the great work!

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +5

      Great observation!!!! yes you are correct. I used to just figure it out but you are right- more and more I am finding that the newer the car, the worse that strategy works lol. also, there are some designs now where if you do the old methods of “let me bypass this” or “let me put voltage to this” it can actually cause major damage because the circuits aren’t what you expect!!!

  • @paulpaquette1961
    @paulpaquette1961 10 หลายเดือนก่อน +1

    Awesome No Crank video!!!! Nice when there is a little twist like that!!!!

  • @jgeorges3061
    @jgeorges3061 11 หลายเดือนก่อน +2

    Matt, you rock brother as always thanks for sharing.

  • @markiemark3003
    @markiemark3003 11 หลายเดือนก่อน +3

    You are just awesome Matt 😮 Im so impressed at your wealth of automotive information..

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +3

      Aww thanks! Glad to pass it along. I still learn every day though- this video was no exception. Always seems I find something new.

  • @davidgjeorgevski
    @davidgjeorgevski 9 หลายเดือนก่อน +2

    I just recently found your channel. I love the scientific method. Also I love your Tran am . I got a 98 trans am ram air, Lots of fun. Great information you have a viewer for life.

    • @SchrodingersBox
      @SchrodingersBox  9 หลายเดือนก่อน

      Great to hear!!! LS1 forever!! Though mine is a later model corvette transplant for the supercharger project

  • @badiyan
    @badiyan 11 หลายเดือนก่อน +1

    Nice to hear from you all new valuable information. Thanks a lot.

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      Always my pleasure!!! This was a good one. Learned something new, but then again I do every time.

  • @calholli
    @calholli 11 หลายเดือนก่อน +1

    I downloaded your free book. Thanks man...
    It has a lot of info.. and links.. and the definitions of automotive terms, etc. Just glancing over it: It looks awesome.

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      Thanks!! The new version is 10X better!! It has probably triple the information.

  • @toddb930
    @toddb930 11 หลายเดือนก่อน +2

    Wow, i didn't realize you were going to take me way back in time by watching this video.

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +2

      Classic isn’t it!!!

  • @billlangdon5914
    @billlangdon5914 11 หลายเดือนก่อน +2

    Green eyed lady lovely lady. Awesome tune and love the 70s rock

  • @NathanSmith-ut4ur
    @NathanSmith-ut4ur 11 หลายเดือนก่อน +1

    From the brief googling I did, the Lexus RX 330 shares the 2GR-FE engine with the RAV4 of the same year. I just did that in my girlfriends RAV4 and it really is a proper pain to get to the starter motor. You have to take the whole battery tray out and then the gap is super tight to get the motor in. I got an aftermarket starter on rock auto and it was a smidge longer than the OEM which makes it super tight with the transmission mount. If that thing fails again on me it’s going to be a nightmare to get back out.
    Another great video Matt! It’s so great to see the community you have following your channel. You’ve helped us all so much, and I love to see the support for your channel from others.

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +1

      Thanks so much Nathan!! Yea the community here is EXACTLY what I wanted. It’s so different and more knowledgeable than most any other automotive channel.

  • @rwrobs777
    @rwrobs777 11 หลายเดือนก่อน +1

    Hey Matt !!…great video and once again thanks for the shout out !!…just picked up an 08 Corvette with the 6.2 liter LS3 and I’m enjoying it…took a ride up to C&S Corvettes in Sarasota and they said they don’t do a lot of diagnostics so they may be using my “skills”…LOL !!…no, they don’t use a scope either !!

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      That’s awesome man!! My Trans Am has a transplanted 6.2L LS3 too- supercharged hahahaha.
      Yeah I really can’t thank you enough for that Pico. It changed the whole channel. That transducer on the jeep’s radiator to verify the gasket leak…. Just epic man. I use that scope every chance I get!!

  • @user-uj1xq5bt2m
    @user-uj1xq5bt2m 11 หลายเดือนก่อน +2

    Very cool test light 💡
    I have been using this for 2 years
    I saw it for the first time in SD😎

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +1

      Yes I love it!! The bright red light and the needle probe for backprobing- it’s perfect!!

  • @thunderstruck5484
    @thunderstruck5484 11 หลายเดือนก่อน +3

    I noticed around the 30 minute mark that sign over your shoulder with the X on it , is Elon a viewer? Awesome! Thanks Matt what I enjoy about your videos is you really have to pay attention , i really need to join up, soon as I get my living situation straight I’ll probably do that, inflation is killing us , thanks for the updates on everything!

  • @calholli
    @calholli 11 หลายเดือนก่อน +1

    I've had 'No crank/ Starts" many times.. because I drive manuals and have pulled started my vehicles more than I would like to admit. :)

  • @GMAN420BC
    @GMAN420BC 11 หลายเดือนก่อน +1

    Thanks for the shout out !

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +2

      thanks for the amazing tip!!! It worked absolutely splendid!!!

  • @DependableAutoTruck
    @DependableAutoTruck 9 หลายเดือนก่อน

    Another great video thanks for sharing

  • @SteveLowe65
    @SteveLowe65 11 หลายเดือนก่อน

    Dude, that's so freakin cool!!

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +1

      hahahaha yeah I did this just to make people jealous hahahahaha!!! nah honestly I really think it’s an awesome story and I’m really fortunate to know Myron.

  • @brownwrench
    @brownwrench 11 หลายเดือนก่อน +1

    Far out! I know that song. Never knew the band name. A new claim to fame.
    Best I could manage is a small talk conversation with Chris Cornell's sister backstage with a downstairs neighbor's band.

  • @georgebonney90
    @georgebonney90 11 หลายเดือนก่อน +1

    Thank you Sir

  • @InsideOfMyOwnMind
    @InsideOfMyOwnMind 11 หลายเดือนก่อน

    Hey man. Caustic Guy here. LOL What a cool story. We get some people once in awhile where I work but I'm not really a name dropper (Mike Pinder Moody Blues) lol but I'm glad you did. I had forgotten about Sugarloaf. It was a different world back then.

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      Hahahaha Myron personally knows Mike Pinder- they played together often and he has some stories lol

  • @jeremyrainwater2175
    @jeremyrainwater2175 9 วันที่ผ่านมา

    Wow what a story!😮😊

  • @harryw3910
    @harryw3910 8 หลายเดือนก่อน

    Awesome bro

  • @Dr.AymanKamar
    @Dr.AymanKamar 11 หลายเดือนก่อน

    Great video my friend

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      We are getting very close my friend!!! I want to make one more major edit while Viktor is out on vacation anyway and then I’ll send it to you for final edit and then you and Viktor will work out the details for the purchase proceeds and then we will launch. I really think at end of summer.

    • @Dr.AymanKamar
      @Dr.AymanKamar 11 หลายเดือนก่อน

      Ok Matt
      Book will be very useful for viewers

  • @donkaiser6704
    @donkaiser6704 9 หลายเดือนก่อน

    Great video. As for Steppenwolf, don't forget Magic Carpet Ride (US Billboard #3) !!

  • @bereketgoitom9450
    @bereketgoitom9450 6 หลายเดือนก่อน +1

    Great job and clear explanation 👏

  • @williambarnett7518
    @williambarnett7518 10 หลายเดือนก่อน +2

    What was the final fix? Starter motor or starter solenoid? And what were you doing with the long screw driver when it finally did turn over with the power probe at 24:20. Jumping the solenoid? Could you jump the solenoid with a screwdriver without the power probe sending power? Or had to do both?

    • @MrsSunshine75
      @MrsSunshine75 5 หลายเดือนก่อน

      @williambarnett I’m super confused on that also?

  • @mtrltoolman
    @mtrltoolman 11 หลายเดือนก่อน

    Good job

  • @cruzramirez33
    @cruzramirez33 10 หลายเดือนก่อน +1

    Good videos 😮 one question.. when you disconnect a sensor and check for power and ground and signal at the conector and it checked out good .. after you connected it back and you back probe with the key on and you don’t have the same reading.. does that mean you have a bad sensor??

    • @SchrodingersBox
      @SchrodingersBox  10 หลายเดือนก่อน

      No it means the switch for the sensor is open. On an open you will see the votage on both sides of the circuit. If you have amperage through the circuit then of course you will se the voltage drop across the load.

  • @carlm2590
    @carlm2590 11 หลายเดือนก่อน +1

    👍great video

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +1

      Glad you enjoyed it!!

  • @reneneron2971
    @reneneron2971 11 หลายเดือนก่อน +4

    It seems a bit strange, but wiring the starter relay that way ensures the ECU controls starting the vehicle. This includes the immobilizer (validates correct key is present), remote start capabilities, and the ability to not allow the car to attempt to start if certain conditions are not met. Also remember on a push start vehicle it is necessary as the ECU controls how long the starter is activated, and will shut off the starter if a no start condition happens after cranking for a short period of time. Otherwise the engine would continue to crank continually even if it did not start for another reason (no fuel, bad ignition, etc). Clever, yes?

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      Oh I totally agree- my question is why doesn’t it do it by controlling the ground side of the control though?

    • @reneneron2971
      @reneneron2971 11 หลายเดือนก่อน

      @@SchrodingersBox I am not an automotive engineer, but I suspect that a control wire fault is much more likely to short to ground than coming into contact with another 12v source. Doing so would engage the starter provided that the ignition is on, even with the engine already running.

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      Would seem to me with a push button start the PCM would not engage starter with an active CKPS signal though. I’d rather have ground fault than a blown PCM for sure!

    • @reneneron2971
      @reneneron2971 10 หลายเดือนก่อน +1

      @@SchrodingersBox correct. I was referring to a fault in the control wiring downstream of the ECU.

  • @Tony-rl2fr
    @Tony-rl2fr 11 หลายเดือนก่อน +3

    First? Wooo... First!
    Edit: Great video as usual Matt. My wife has the same vehicle only 2005. I will definitely be purchasing your book, and thanks for all your time and efforts! Glad you survived the pups 😂

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +2

      yes you are!!

    • @bdi11000
      @bdi11000 11 หลายเดือนก่อน

      ​@SchrodingersBox what a turkey!

  • @ernestkerley6282
    @ernestkerley6282 4 หลายเดือนก่อน

    Your too cool, Dude

  • @sheerwillsurvival2064
    @sheerwillsurvival2064 11 หลายเดือนก่อน

    Another great video can’t wait to get your book 👊🏻$5 I’ll pay in advance

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +1

      Hahaha give us until end of summer and we’ll have it ready! Lots of new material too.

  • @spirubalan3324
    @spirubalan3324 9 หลายเดือนก่อน

    la nisan primera este in cabina tabloul de sigurante si relee, stinga jos in fata soferului...in mijlocul sigurantelor

  • @nickayivor8432
    @nickayivor8432 11 หลายเดือนก่อน

    Enjoy your weekend with all your family around you, Schrodingers Box
    👍
    QUICK-WITTED Schrodingers Box
    From Nick Ayivor from London England UK 🇬🇧 ⏰️ 07:25am Good Morning 🙏 🌄

  • @bakermark6891
    @bakermark6891 3 วันที่ผ่านมา

    Okay brother.. i see the TH-cam plaqué on the wall. And yes!! Green eye lady was that shit bruh!! 70s and 80s music for me...

  • @vusiematwa1233
    @vusiematwa1233 9 หลายเดือนก่อน

    Hi Matt. Please help. My car does crank and every sensor is good according to the scanner, but yet there's no spark. What could be the problem.... it's a corsaD z14 XEP engen

  • @TheDisgruntledMechanic
    @TheDisgruntledMechanic 11 หลายเดือนก่อน +1

    holy hell i know sugarloaf and both songs!!!! that is a cool story and payment!! and of course he is mellow!! he was a musician in the 70's! HA!

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +1

      hahahaha you were already old when those came out hahahahahahahaha

  • @bradbeck2601
    @bradbeck2601 11 หลายเดือนก่อน

    Seems like the relay is set up like that to eliminate accidental double cranking the engine? ECM won't send power to the relay control if it sees the engine running. Still seems a bit of an odd setup for a car but I typically work on older heavy trucks and construction equipment.

  • @calholli
    @calholli 11 หลายเดือนก่อน +1

    I couldn't really see the diagram, but I would bet that the ignition switch actually turns on a larger main relay that the turns on several other things, including the load side at the start relay. I wouldn't think that they would wire the ignition switch directly to the starter solenoid. I bet there's more fuses and relays under the dash. It's still pretty odd though.. I'll have to remember this one. I think this is the first time I've seen something different than the normal constant power there at the starter relay; I would have definitely thought there were issues there until I seen the wiring diagram. interesting.

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +2

      yes I actually simplified the diagram a bit however the start position does indeed send 12V directly to the load side starter relay. reminded of 1950’s Buick I worked on recently. you are correct in that there are other offshoots from ignition switch to the ECM of course but it is a direct bee-line to that relay! I think it’s “safe” because the relay does the ground side completion afterwards so the switching is inside the relay vs the ignition switch.

  • @markchidester6239
    @markchidester6239 11 หลายเดือนก่อน

    Great to have coffee with you this morning (in my SB cup of course)!

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      Hahaha thank you!!! This is definitely one of the sit back with a cup of coffee videos.

  • @deeeyewhy5949
    @deeeyewhy5949 2 หลายเดือนก่อน

    An Rx 330 doesn’t have a prop rod they use hydraulic shocks which tend to fail so maybe he just took em out and has an after market prop rod?
    Also they only had the 3.3 liter from 04-06 the 07 was the 3.5 liter or the rx350
    I have an o4rx330 and the relays are right in that main fuse box near the brake fluid. Idk why they changed the design but that sucks. In curious if this one was a Canadian model?

  • @kdmq
    @kdmq หลายเดือนก่อน

    If you have a manual transmission car that is a "No crank" and you can push start it or roll start it by popping the clutch in gear, then you can have a "No crank start".

    • @SchrodingersBox
      @SchrodingersBox  หลายเดือนก่อน

      But it is cranking in that case. It’s just cranking without the starter motor

  • @jimbeckettplay
    @jimbeckettplay 11 หลายเดือนก่อน +1

    Make sure you remember to change the No Crank, No Start in the book, too!
    I'm not arguing with your assessment, nor the outcome, but I missed how you proved that the cause of the starter issue was not ground related. I can envision those seats and steering wheel moving with a so-so ground that might not be adequate to crank the engine. Ground cables and corrosion would have been my starting place to investigate - solely based on prior experience of instrument cluster behavior caused by ground issues in ancient Chrysler products, and other clap-trap automobiles.

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      Hahaha yes I will do that but probably mention it in the book why it’s just no-crank!
      Ground is not an issue on this starter because the block is the ground. No ground cable.

    • @jimbeckettplay
      @jimbeckettplay 11 หลายเดือนก่อน +1

      @@SchrodingersBox It took a few minutes for it to sink in, but you proved the ground cable was not the issue when you changed the starter. (Since it worked properly, then.) I was thinking in terms of positively condemning the starter prior to changing it. If you were able to do that 100% before attempting the new starter, please explain to this dummy how... hehe. Have a good night.

  • @HOTRODRICO
    @HOTRODRICO 9 หลายเดือนก่อน +1

    the lexus fuel pump has its own ecu module and even getting the starter to turn the engine on wont start the car because the rest of the main ecu functions (throttle position sensor, injectors, fuel pump etc) are not being activated, they all work simultaneously, so just the starter cranking isn't gonna make the rest of the components necessary to start the car activate... peace

  • @charlesgould8436
    @charlesgould8436 10 หลายเดือนก่อน

    I dont know how to present this, but, saw a newer mazda and the 2 middle spark plugs had 2 wires out of harness that i think were ground. Im guessing a waste spark type of thing? Or im thinking just actual block grounds.

    • @SchrodingersBox
      @SchrodingersBox  10 หลายเดือนก่อน +1

      Sounds like a waste spark. The other plugs probably had coils directly on them I am guessing.

  • @user-ky7ty3ie1x
    @user-ky7ty3ie1x 8 หลายเดือนก่อน

    Can you make videos on compression test

    • @SchrodingersBox
      @SchrodingersBox  8 หลายเดือนก่อน

      I have at least 12 videos on compressions testing with various methods.

  • @nhitc6832
    @nhitc6832 29 วันที่ผ่านมา

    I'm curious about how big the wires of the igntion switch in this circuit design. Since the starter is ultimately connected to the ignition switch, wont the ignition switch have to have really big wires to be able to handle a huge current? This design is really counter intuitive and defeat one of the purposes of a relay. And that is have a low current on the ignition switch

    • @SchrodingersBox
      @SchrodingersBox  29 วันที่ผ่านมา

      it uses a relay so the wires are small gauge.

  • @paquesepas6696
    @paquesepas6696 10 หลายเดือนก่อน

    Can you make an update video on the covid vaxx injuries and all the young athletes that some people are relating to the jabs? Just wanna hear your prespective like on your original vaxx videos you made that helped me. Right now if you question if it could be the jab there's immediate criticism but I don't know why you can't even question something anymore. Thanks.

  • @DuaneDonaldson
    @DuaneDonaldson 9 หลายเดือนก่อน

    Different strokes for different folks, I also believe a no crank means nothing happens but to many people, no crank means no start but the starter activates, we see this fact all over the internet so NO CRANK NO START is very acceptable, for a crank no start I also add on why, such as NO START NO SPARK in my library listing. The list of why can get long based on what is missing not allowing a start.
    Don't be a hater Bro, you get paid to do difficult-to-access starters, if you don't like a job, turn it away. Thanks for all the videos.

  • @imraanabdulhaqq3411
    @imraanabdulhaqq3411 11 หลายเดือนก่อน

    Hi! I have a 2003 gmc savanna van 4.8L. 8 coil packs 4 on one side 4 on the other. One side of the 4 coil packs are getting fire. The other side of the 4 coil packs No Fire! It spinning over but don’t catch! Please tell me what to do to get that fire on the one side of all the 4 coil packs?

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      Yeah you have one of two issues. Either you don’t have power to that side or you don’t have ground to that side. Check ANY coil for missing power or missing ground and that will confirm it since all share the same power and ground on that side.

  • @MrCountmein3
    @MrCountmein3 8 หลายเดือนก่อน

    Yes ppl know that band.

  • @user-im8oc4us9p
    @user-im8oc4us9p 6 หลายเดือนก่อน

    Ack, what were you going to say about the dashboard??? The lights that remain on are my concern. I'm have a no crank & headache. Please elaborate if possible.

    • @SchrodingersBox
      @SchrodingersBox  6 หลายเดือนก่อน

      Not sure what you are referring to but if you have a no crank then start by checking for voltage to the starter. That’s always easiest first basic step.

  • @dcbacon1
    @dcbacon1 9 หลายเดือนก่อน +1

    OK, I am an electronic technician well versed in troubleshooting industrial electronics, and I really appreciate your book. I have two Sons that are interested in electrical explanations from time to time and I want to explain things like they are in this book, so where do I sent the $5? PayPal preferred... Thanks

    • @SchrodingersBox
      @SchrodingersBox  9 หลายเดือนก่อน

      Wow, thanks! Right now a free "draft" version of the book is available at www.schrodingersboxQM.com. The full version is still being revised and will be out in a couple months. We will have instructions available when it launches but it will still be all done through that website.

    • @dcbacon1
      @dcbacon1 9 หลายเดือนก่อน

      Yup found the book, love it, I will stay tuned.

  • @Graham_Wideman
    @Graham_Wideman 11 หลายเดือนก่อน

    11:50 "Why did the fuse blow?" Because too much electricity was trying to get to the other side?

  • @mike-yp1uk
    @mike-yp1uk 10 หลายเดือนก่อน

    The prop rods in the trunk

  • @carlodonnell146
    @carlodonnell146 11 หลายเดือนก่อน

    Hi Matt, Is it easier to fry the ECM with a POWER-SIDE switched system, than it is with a GROUND-SIDE switched, or is it equally the same?

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      Same. The difference with ground side is that it’s much safer for PCM if there is a wiring fault. If PCM provides power and that wire grounds out, you fry the PCM. But if PCM provides ground and the wire grounds out, you don’t blow the PCM but of course that device would always run.

    • @TylerDurden-pk5km
      @TylerDurden-pk5km 11 หลายเดือนก่อน

      @@SchrodingersBox I would assume that the PCM will have current limiting by whatever means ... fuse. resistor (cheapest option), polyfuse or as part of the voltage regulator for the circuit ... that would be just common sense.

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      It often doesn’t!!! That’s the thing!!! A fuse in the circuit won’t help on a positive side PCM control because the transistor in the PCM would blow long before a fuse did. You want that fuse to be directly from battery source and PCM controls ground after the load so in event of a short on that power, PCM will be saved if it’s not switching at the time.
      Take a fuel injector for example- it has a fuse. And it’s ground side controlled by PCM. If you ground that power out in front of the injector- then no matter what you won’t hurt the PCM. You will just blow the fuse. If your ground wire on the injector grounds out, again, you won’t hurt the PCM (but injector would always be open). HOWEVER- if the injector itself shorts or you short across it with a paper clip, you will blow the PCM, the fuse won’t even blow because the PCM will fry long before the fuse would.

    • @TylerDurden-pk5km
      @TylerDurden-pk5km 11 หลายเดือนก่อน

      @@SchrodingersBox I am not an expert on ECU design - and if there is no protection circuity and only a fuse - you are right, it will likely kill the transistor. Though I cant imagine that modern ICU do not have protection against it - for example combining a current limiting resistor and a a fuse (or PTC). Or implementing a current limiter that switches off the transistor in case of overcurrent - it wouldn't really take much to implement something like it. Modern phones, computers, chargers are full of power electronics creating numerous voltage rails - almost always current limited. Could be an interesting test on a car that's headed for the scrap heap.
      e.g.: US patent US20140347774A1 descibes a sophisticated approach - but much simpler approaches would use a similar setup (just without the staging and the need for an ADC - just simple comparators).

    • @carlodonnell146
      @carlodonnell146 10 หลายเดือนก่อน

      @@SchrodingersBox So is that same thing as installing a fuse between the PCM and any device; the driver would still blow and not the fuse. even if the fuse was 5amps or smaller?

  • @thenomadtrader1142
    @thenomadtrader1142 7 หลายเดือนก่อน

    Can I email you? I had hard starts and very random stalling issues/rough idle. I thought it was fuel related so I replaced the fuel pumps and now I have no start. Check compression and its low but the car ran right before replacing the fuel pumps, except when going wide open throttle it was bogging which is what led to the new fuel pump. I am so confused could it possibly be a failing crank/cam sensor causing this issue?

    • @SchrodingersBox
      @SchrodingersBox  7 หลายเดือนก่อน +1

      Could be. Could be a million things. What was your fuel pressure showing that indicated the fuel pump was bad? what is your cam sensor signal voltage showing?

    • @thenomadtrader1142
      @thenomadtrader1142 7 หลายเดือนก่อน

      @@SchrodingersBox I am not sure the FPR is in the engine bay but experiencing loss of power at WOT. I was told by my tuner I had a fueling issue. Seems like its time for the parts cannon 😅

  • @mnewln1800
    @mnewln1800 10 หลายเดือนก่อน

    16:14 the 2%!!

  • @berniesoriano4532
    @berniesoriano4532 10 หลายเดือนก่อน

    How do you test a Relay if its working or not ?

    • @SchrodingersBox
      @SchrodingersBox  10 หลายเดือนก่อน

      I simply measure continuity on the load side while activating the control side. If there isn’t load side continuity during control side energization, the relay is bad - even if it “clicks”

  • @martyj1062
    @martyj1062 10 หลายเดือนก่อน +1

    Okay who’s humming green eyed lady while watching ? 😂

    • @SchrodingersBox
      @SchrodingersBox  10 หลายเดือนก่อน

      hahahahahaha I have been humming it for 3 days nonstop now hahahahaha

  • @lw8945
    @lw8945 9 หลายเดือนก่อน

    I have a French car, and to test mine you have to crank, to test the relay, and some other European cars are same.

  • @HOTRODRICO
    @HOTRODRICO 9 หลายเดือนก่อน

    the lexus engines are very compartmentalized meaning almost everything has a sensor or ecu to monitor or control its functionality..

  • @troy9304
    @troy9304 10 หลายเดือนก่อน

    I currently have a crank no start on my 2015 bmw n55 535i .i have Checked everything on my fasttec list at least twice and the car won’t start. The car was working completely fine the day before (no codes engi

    • @SchrodingersBox
      @SchrodingersBox  10 หลายเดือนก่อน

      Ok so how did you verify fuel, how did you verify spark, how did you verify timing and how did you verify compression. You missed one of those. if the car doesn’t start then one or more of those is missing. there is no other explanation.

    • @troy9304
      @troy9304 10 หลายเดือนก่อน

      (For spark )i used multi meter and receiving 12v to the ignition harness and i used a test light while cranking and i am getting spark
      ( For fuel ) i don’t have a release valve so i open the fuel line and (car fuel pump prime by opening door dont have to open ignition)after open the door gas sprays out at an high rate so my fuel pump is good
      Remove spark plugs and injectors are spraying
      (For air and compression ) removed the car intake and it’s s clear .for compression im to sure how to check
      Used My obd2 to scan car and got no codes . Found a way to used the ignition dashboard to scan the car and 1 code came P13e5 -ignition and injectors relay control circuit
      I’m not sure what to do next. Can’t find the relay

    • @SchrodingersBox
      @SchrodingersBox  10 หลายเดือนก่อน

      Ok I see no evidence of testing timing, no evidence of compression and no evidence of fuel. For all we know your fuel pressure is 15PSI.
      You will have to revisit everything except spark. You have to show timing is correct, compression is correct and fuel pressure is at minimum spec. One of those things isn’t correct. We know that for a fact.

  • @georgebell3964
    @georgebell3964 11 หลายเดือนก่อน

    👍

  • @teelynn9733
    @teelynn9733 10 หลายเดือนก่อน

    I have a 2002 Safari that won't start after lower radiator hose came loose any suggestions?

    • @SchrodingersBox
      @SchrodingersBox  10 หลายเดือนก่อน

      Could have overheated. Check compression first v

    • @teelynn9733
      @teelynn9733 10 หลายเดือนก่อน

      @@SchrodingersBox yes it did over heat..I was driving and it overheated and lost power

    • @SchrodingersBox
      @SchrodingersBox  10 หลายเดือนก่อน +1

      Yeah the most likely explanation is at best you blew the intake gasket and at worst the head gasket. You absolutely need to do compression test. Best wishes - I hope it’s not the cylinder head.

  • @Parknest
    @Parknest 11 หลายเดือนก่อน

    This is a timely video. I'm currently diagnosing a starting issue on a 2006 Mercedes-Benz W203 220 CDI. The starter has 3 fuses and they're all fine. I've bypassed the relay and put power and I've been able to get the car to start. It is now an intermittent start. Sometimes it will start on the button but most of the time I can hear the solenoid click so I'm ruling out the electicals from the ignition switch to the solenoid connection so I'm suspecting a bad connection to the solenoid or the starter itself. That was an interesting story about Myron Pollock. He seems to be humble and down-to-earth unlike some rock stars.

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      It sounds like a voltage drop issue the way you describe it. Check voltage drop on the starter cable.

    • @mufdvr9730
      @mufdvr9730 9 หลายเดือนก่อน

      What does he do if there is a voltage drop ? What does that mean and what is the issue then ? Thanks

    • @SchrodingersBox
      @SchrodingersBox  9 หลายเดือนก่อน

      If there is a voltage drop on the cable BEFORE the load it proves the cable has high resistance.

  • @robertdavid6474
    @robertdavid6474 8 หลายเดือนก่อน

    Can u help me I have a 2015 Kia Optima my car was recently broken into now I’m Experiencing a start no crack every things come on but want start

    • @SchrodingersBox
      @SchrodingersBox  8 หลายเดือนก่อน +1

      sounds like the security reader for the key has been damaged.

    • @robertdavid6474
      @robertdavid6474 8 หลายเดือนก่อน

      @@SchrodingersBox how do I fix that if u don’t mind me asking

    • @SchrodingersBox
      @SchrodingersBox  8 หลายเดือนก่อน

      You will have to replace it and have a new one programmed. A locksmith can do it.

  • @TheDisgruntledMechanic
    @TheDisgruntledMechanic 11 หลายเดือนก่อน +1

    2nd whoo hoo!

  • @xlargetophat
    @xlargetophat 6 หลายเดือนก่อน

    No click = bad relay or bad ignition switch or wire to relay... My guess at 3:30 minute mark.

  • @scottizbeatz
    @scottizbeatz 6 หลายเดือนก่อน

    Bro did you have to remove the axle?

    • @SchrodingersBox
      @SchrodingersBox  6 หลายเดือนก่อน

      Nope not at all. R+R only took like half an hour actually.

  • @bartnettle
    @bartnettle 7 หลายเดือนก่อน

    no crank no solenoid click?

  • @johnnyfivealiveable
    @johnnyfivealiveable 11 หลายเดือนก่อน

    Hey Matt I have a 2003 GMC Sonoma 4.3 I have a PO 351 any help on what to check would be greatly appreciated

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +2

      I would swap the coil, plug and wire with adjacent cylinders and see if code changes to one of the new cylinders. If it does, that part you moved is bad. If code remains you need to check your coil reference voltage, signal input and ground.

    • @johnnyfivealiveable
      @johnnyfivealiveable 11 หลายเดือนก่อน +1

      Yeah it has all new wires,coil, rotor and cap that was put on it from a shop

    • @johnnyfivealiveable
      @johnnyfivealiveable 11 หลายเดือนก่อน +1

      But thanks as always brother you rock

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +1

      Yep in that case there is a missing input. Or signal.

    • @jimbeckettplay
      @jimbeckettplay 11 หลายเดือนก่อน

      @@johnnyfivealiveable That doesn't mean that all the new parts function correctly. Take his advice and move each to a different cylinder and see if the problem moves.

  • @mft1284
    @mft1284 6 หลายเดือนก่อน

    Mine shows a P2354 ignition switch

    • @SchrodingersBox
      @SchrodingersBox  6 หลายเดือนก่อน +1

      Yes that codes means the fuel pump modules is seeing less than battery voltage. Simply check the voltage at the module as first step and if the voltage is indeed low check for a short on the feed. If it’s not low check then the module may be bad. Usually that’s not the case though.

    • @mft1284
      @mft1284 6 หลายเดือนก่อน

      @@SchrodingersBox low oil pressure light stop engine comes on when accelerating. When it cools off it goes away. My buddy said it was the oil pressure switch, so I replaced it. Wasn’t it. Now he’s convinced it’s a bad oil pump. I noticed they were 2,500 overdue for oil change when it quit running. I decided to pull the VVT solenoids. The first 2 came apart inside. I’ve tried a magnetic pin, but it’s not strong enough. I’m thinking they are gummed up and stuck. Any suggestions for getting them out? Would make a great video…Thanks

  • @sheerwillsurvival2064
    @sheerwillsurvival2064 11 หลายเดือนก่อน

    Maybe it’s the starter not a compression issue 🤔 Bad armature?

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      It is!!!!! That’s exactly why I found as the new starter didn’t have that issue. Whew!!!!

  • @edhill9226
    @edhill9226 หลายเดือนก่อน

    Those vehicles are over complicated girl couldn't afford the relay and key lock so I bypassed the whole shebang with a door bell button turned it into a push start car over engineered

  • @Graham_Wideman
    @Graham_Wideman 11 หลายเดือนก่อน +9

    "No crank, no start" -- well TECHNICALLY, you could have "No crank DOES start" if you roll start it! That would confirm everything works except for the starter system. But yeah, that would be pretty inefficient to laboriously pursue whether it starts or not when you're going to have to address the starter system anyway.

    • @user-hw3rl1kp2g
      @user-hw3rl1kp2g 6 หลายเดือนก่อน

      What do we do

    • @jessjoshwyatt3571
      @jessjoshwyatt3571 4 หลายเดือนก่อน

      Then it would be called no crank roll start. So it is no crank no start if it won't start by turning the key.

    • @ezchoicelab9904
      @ezchoicelab9904 หลายเดือนก่อน

      How about hybrid systems that don’t have starter. So no crank by default.

    • @SchrodingersBox
      @SchrodingersBox  หลายเดือนก่อน

      Hahahaha. Well then you can’t differentiate between no crank no start and a no crank start!
      I guess it’s just a start or no start??

  • @user-vq4rp7tv8q
    @user-vq4rp7tv8q 6 หลายเดือนก่อน

    turn your defrost on. you ok.

  • @tashamariezdenek
    @tashamariezdenek หลายเดือนก่อน

    So... In the end. You replaced the starter?
    Trying to diagnose my daughters boyfriends car. So he can stop driving my car to work cause im gonna lose it if i cant have my car back soon.
    Im thinking it might be his starter, but i dont have a multimeter so its a guess only from watching a million videos today

    • @SchrodingersBox
      @SchrodingersBox  หลายเดือนก่อน

      Why not just buy a multimeter for $10 at home depot?

    • @tashamariezdenek
      @tashamariezdenek หลายเดือนก่อน

      @@SchrodingersBox I need to, just haven't gotten that tool yet. I'm gonna try tapping on the starter and trying the key again before I do anything else. He took his keys with him in my car, for the last two days. So I have limited time to try anything before it gets dark. 🤦‍♀️

  • @charlesgould8436
    @charlesgould8436 10 หลายเดือนก่อน

    When you get old, the way you do things change. Usually better but it takes micro management and knowledge

  • @Celluarexpress
    @Celluarexpress หลายเดือนก่อน

    Analog digital voltmeter man.... hahaha 😅

    • @Celluarexpress
      @Celluarexpress หลายเดือนก่อน

      Dvommvmm

    • @Celluarexpress
      @Celluarexpress หลายเดือนก่อน

      How much is your paid channel?

    • @SchrodingersBox
      @SchrodingersBox  หลายเดือนก่อน

      It’s only $3.49 per month. Www.schrodingersboxQM.com

  • @hobofoshitsho8999
    @hobofoshitsho8999 4 หลายเดือนก่อน

    You should look up the proper usage of "begging the question". I know that a lot of youtubers (and others) are using "begs the question" as a replacement for 'raises the question' but that's not at all the proper context for that phrase.
    Hint: theres really no reason normal (and intelligent) people like us would ever have a need to use that phrase in normal conversation. Its a logic thing. Like philosophy and what not. I can't really even explain it effectively which is why i suggest looking it up right here on the toob. Ur welcome. ;)
    If you happen to be using the word "efficacy" in any capacity, thats pretty much a similar situation. Its very specific and lots of people are using it without looking it up. Context doesnt define anything.

    • @SchrodingersBox
      @SchrodingersBox  4 หลายเดือนก่อน

      I literally have no idea what you are talking about. The irony that you are trying to help me communicate better hahahahahahaya

  • @RotoRCol
    @RotoRCol 11 หลายเดือนก่อน

    1.5 volts of voltage drop is too much, that is no good

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน

      It is in a stuck starter where source battery voltage also drops due the the high amperage.

  • @spirubalan3324
    @spirubalan3324 9 หลายเดือนก่อน

    0 seguranta 20 amperi arsa sau scoasa, luata de electriker

  • @hobofoshitsho8999
    @hobofoshitsho8999 4 หลายเดือนก่อน

    Watch this video. You said " that begs the question "

    • @SchrodingersBox
      @SchrodingersBox  4 หลายเดือนก่อน

      What was your thought on the data interpretation from the diagnostic. What would you have done differently?

    • @hobofoshitsho8999
      @hobofoshitsho8999 4 หลายเดือนก่อน

      @@SchrodingersBox 14:45 is where you said it. Your diagnostics skills are far superior to mine. I have no input on your technical skills. Looks like you're on point to me.

    • @hobofoshitsho8999
      @hobofoshitsho8999 4 หลายเดือนก่อน

      @@SchrodingersBox I'm just poking around for ideas. I'm dealing with a 2013. Yeah, sportage, it was idling a little rough and seemed like it ran out of gas in the driveway. I put five gallons in it and now it won't start. It's basically a crank, no start. But I did get it to fire a little bit with some starting fluid. Oh also, a door was left cracked which killed the battery while sitting for 2 days. Charging the battery currently (pardon the pun) any suggestions?

    • @SchrodingersBox
      @SchrodingersBox  4 หลายเดือนก่อน

      What data do you have?

    • @hobofoshitsho8999
      @hobofoshitsho8999 4 หลายเดือนก่อน

      @@SchrodingersBox actually, I just confirmed it was a fuel pump. It's on order.

  • @donkaiser6704
    @donkaiser6704 9 หลายเดือนก่อน

    Sugarloaf, not Steppenwolf (brain apparently stuck in the 70's)

    • @SchrodingersBox
      @SchrodingersBox  9 หลายเดือนก่อน

      You just have had a great time in the 70’s lol. Steppenwolf one of my favorites- and my favorite song is indeed magic carpet ride. The 8 minute psychedelic version- not the radio version!!!

  • @jamesreed7358
    @jamesreed7358 4 หลายเดือนก่อน

    Sugarloaf green eyed lady !

  • @DependableAutoTruck
    @DependableAutoTruck 9 หลายเดือนก่อน

    did i miss something i thought the purpose of the relay was to carry the load. unless i missed or misunderstood appears the switch is carrying the load it just goes thru the relay the relay just breaks the circuit seems like a waste of a relay.

  • @charlesgould8436
    @charlesgould8436 10 หลายเดือนก่อน

    Take a couple drum lessons!

  • @samstvshow
    @samstvshow 11 หลายเดือนก่อน

    Cheap sht cars. It became law that starters be controlled by a relay. These guys and others obeyed the law but entirely missed the point : they still route mains power through the ignition switch.

  • @jgeorges3061
    @jgeorges3061 11 หลายเดือนก่อน +4

    Matt, you rock brother as always thanks for sharing.

    • @SchrodingersBox
      @SchrodingersBox  11 หลายเดือนก่อน +2

      My pleasure and always great to see you!

  • @aymenmohamed1134
    @aymenmohamed1134 10 หลายเดือนก่อน

    👍

  • @veikkonurmiranta624
    @veikkonurmiranta624 4 หลายเดือนก่อน

    👍