27:27 Matt, its more than 9 years and we are still hanging with this video 😂 Don't worry keep going with the great stuff
@SchrodingersBox16 сағат бұрын
glad to hear hahaha. so far it’s still very relevant.
@Xantylon7421 сағат бұрын
3:39 The female ovary has a tank, a pipe and a pressure regulator. everyone noticed! 😁
@noahadimКүн бұрын
ugh, i feel for you man. I broke a rib about 40 years ago and i still feel it lol
@TekjiveКүн бұрын
I have the same problem, pinion nut worked loose, Ty 🤙🏻
@kentsang63302 күн бұрын
So even if I have a code P0108 it’s possible is not the MAP sensor problem, or it might be air leak .
@SchrodingersBox2 күн бұрын
Not only possible- it’s likely. Always check your Inputs first and then look for variable output from the sensor. That’s always the basic first starting point every time.
@martinlee76252 күн бұрын
A maestro mechanic instructor….!!…..very informative….Thankyou….
@garyphillips50332 күн бұрын
This guy needs to study his stuff before starting this vehicle does not have crank or cam sensors the tan / wire is for setting base timing
@SchrodingersBox2 күн бұрын
Looks like you need to study. It does have a cam sensor. That’s why it uses the distributer output. That’s a cam sensor Smh. Also I set the timing after I fixed the vehicle. Always someone who doesn’t understand what happened trying to make themselves look smarter. What is your explanation for the scope output from the PCM by the way when I used the testlight to create an input? How do you explain that working if there is no cam input? Dying to hear your answer.
@dependswhoyouask2 күн бұрын
rEASONING aND lOGIC rEal
@Raideradamn3 күн бұрын
Can u move a transfer case by hand.this guy was shaking it by hand and said I need a new one
@SchrodingersBox3 күн бұрын
Definitely not. Movement like that indicates the mounts are broke.
@jarodramage3 күн бұрын
Dudes a nerd but I fw it
@TheNetman9113 күн бұрын
Just found this channel Enjoyed the information thanks for taking the time.
@cassadaga4 күн бұрын
Great video I am still trying to find out why my car will not start. Maybe you can point in right direction. Car sat for 6 years. It's a 1998 Volvo S70 GLT. I cleaned out fuel tank, replace fuel pump and fuel filter. I cleaned injectors. Car cranks has spark and fuel out the injectors. I thinking must be a sensor where the timing is not lining up with the spark and injected fuel. Any thoughts
@SchrodingersBox3 күн бұрын
What is the compression showing?
@cassadaga3 күн бұрын
I never checked the compression. I will check all 5 cylinders. What else should I be checking? Thanks for your insight
@SchrodingersBox3 күн бұрын
If there really is fuel and spark then you only have timing and compression left. Remember timing can be mechanical timing or ignition timing.
@cassadaga3 күн бұрын
Yes there really is fuel and spark. I was thinking timing. Camshaft sensor. Worst scenario sticky valves. That's why I was asking you if there's a sensor I'm not thinking about that I can test. Thank you for helping
@SchrodingersBox3 күн бұрын
If a valve is sticking that would cause single cylinder poor compression. Not a no start. The idea all valves are sticking…. Maybe. Seems really unlikely. Compression is where I would go either way but I would more suspect any other reason- most likely bad timing. Also you say there is fuel from the injectors- I am assuming of course you measured fuel pressure. If you didn’t I would actually start there. Fuel from the injectors means nothing if it isn’t at least 35PSI.
@sureillance9010onPS44 күн бұрын
Very good explanation Thank you, Mr. Scientist!
@analogsmog4 күн бұрын
honestly, who's ever used a pair of Channies and have them slip and pinch your fingers? that just seems like operator error.
@SchrodingersBox4 күн бұрын
you have. many times. and you know it.
@Brikzilla5 күн бұрын
I have a ford focus and replaced the fuel pump and relay and still have no fuel pressure with no start🥲
@SchrodingersBox5 күн бұрын
why would you replace the fuel pump for no fuel pressure? what evidence showed the fuel pump is bad?
@Brikzilla4 күн бұрын
@SchrodingersBox I have a code p0232 for high voltage in secondary circuit to fuel pump. After replacing the relay and some fuses still no start I decided to try the fuel pump itself. I'm not sure what to do now that it's not starting still. Car wasn't even misfiring or throwing codes before this, it was completely random
@SchrodingersBox4 күн бұрын
yes you need to chase down the open circuit. it’s not the fuel pump. what is your fuel pressure when you put 12V to the pump directly? what is your voltage at the fuel pump? what is your voltage drop on the positive and negative?
@Brikzilla2 күн бұрын
@SchrodingersBox Truly appreciate the reply, especially on an older video. Definitely earned a new sub! I was able to get the car running again today after reseting the cars inertia switch and resetting the pcm with a jumper. Not sure which exactly did it but I'm not complaining haha
@labradormcgraw5 күн бұрын
I can’t help but notice that my last comment is THE ONLY one without a like! You trying to give me a complex, Matt? 😂
@SchrodingersBox5 күн бұрын
Hahaha there I gave you a nice big heart AND a like hahaha!!
@labradormcgraw5 күн бұрын
@@SchrodingersBox That's more like it. 😊
@edwardhuber78645 күн бұрын
Thanks you.
@mintech10005 күн бұрын
Did you check each cylinder until you found the knocking one or you knew which one to check using method you didn’t specify. Thank you.
@SchrodingersBox5 күн бұрын
At the time of the video I checked each one. Now of course I would simple align a relative compression test with an ignition marker and calculate which piston it was from the firing order.
@mintech10005 күн бұрын
Understood. That would be your new approach.
@schwizelled5 күн бұрын
I suppose if you have a car that's starting but not cranking, then you don't need a mechanic, you need an exorcist.
@pnowicki8795 күн бұрын
Hi Matt, great channel content. 2 Things come to mind, 1. To diagnose and verify a vacuum leak repair or problem I am a little older and thought of using a vacuum gauge to help on this job. A vacuum guage should detect and verify a repair of a vacuum leak. 2. I don't know about Ford but on older GM products there used to be a replacable chip in the ECM or PCM called a PROM chip and if you replaced that chip for a diagnostic issue or for performance you would then have to program the new one for that vehicle and/or allow for a number of drive cycles for the system to function properly. Also on my 2004 Ford Taurus a simple disconnecting of the battery creates a high idle problem for quite a few drive cycles. Finally if I have had questions on Ford products I have reached out to Ford Tech Makuloco channel on youtube, he only works on Fords very good technician. Thanks for the do it yourself high quality diagnostic videos.
@SchrodingersBox5 күн бұрын
How is a vacuum gauge going to indicate a vacuum leak on a car where the fuel trims have completed compensated and a MAP voltage of 3.6 is showing?? What reading do you expect is a vacuum gauge going to show on this vehicle?
@seanbrown46186 күн бұрын
Great information and it was very informative.💯
@JU08006 күн бұрын
What if the car shakes in idle? Will this be a bad transmission mount?
@SchrodingersBox6 күн бұрын
Could be. Could be dozens of things though.
@TheJoeScarafoneChannel6 күн бұрын
Matt I'm pressure testing my injectors, 97 Dodge ram 360 original injectors. The pulse choice goes from 1 to 50, and then higher up to 200 I think . That seems like a big jump, I don't want to hydrolock my engine. I hate to ask but your thoughts? Are there steps I can take post testing to ensure I don't cause that condition. I just changed my tampon, please speak freely
@SchrodingersBox6 күн бұрын
Hi Joe. Rare that one can speak freely these days lol- at very least get cancelled! Not sure I understand your question. Sounds like you are using a device to activate the fuel injectors by applying a pulsewidth- maybe 1ms up to 50ms and you check the drop in pressure using a gauge?
@TheJoeScarafoneChannel6 күн бұрын
@@SchrodingersBox yes
@SchrodingersBox6 күн бұрын
Gotchya. Yeah I can tell you I have done up to 3 pulses without any hydro lock. If you are concerned then simply crank the engine maybe 2 or 3 seconds between tests and it will push the fuel right out the exhaust. But you would probably have to run like 10 pulses to hydro lock. It really only puts out less than a milliliter of fuel per test.
@TheJoeScarafoneChannel5 күн бұрын
@@SchrodingersBox the cheap pulse tester I bought has 4 modes. Mode 1 is 1 pulse. Mode 2 is 50 pulses, then it goes over a 100 pulses on mode 3 and 4. I watched scanner Danner use one and was using 10 pulses I think. I'm sure the milliseconds which sure matter. I think I'll be okay with advice tho. I'm loving this subject and wish I had a nice scanner, love your work. If I can chase the rough idle down on my 97 without wasting money on parts the vehicle did not need, I may invest in something better than a hand held OBD2 scanner. Thank you so much
@TheJoeScarafoneChannel5 күн бұрын
....edit) not sure what milliseconds Dan used
@ezzzzrrrs76466 күн бұрын
Thanks Matt GREAT vid.... @ 17:22 the set ( 4 ) of hose grip/removal pliers are AWESOME hav nevr failed me Feel free to make another.....or make it a series....or do one backwards and talk about tools that u tried and sucked / returned them. I recently returned a set of the ball-joint sockets u screw on and hit w/air hammer didnt work had to break out the old seperator tool
@Kwilson38286 күн бұрын
Excellent video
@nhitc68327 күн бұрын
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
@SchrodingersBox7 күн бұрын
it uses a relay so the wires are small gauge.
@arifmasood87187 күн бұрын
Hello sir I am big fan of your videos. They are know very well done. I have your monthly subscription too. Which software you are using to scan this truck? Thank you
@SchrodingersBox7 күн бұрын
thanks for subscribing. I believe in this video I used AutoEnginuity.
@totty5827 күн бұрын
Any thoughts on why i get p0322 and p15A100 pls? I've trawled KZbin and Google and my best guess is crankshaft position sensor but I'm only just starting out trying to fix my own issues as i can't afford garage anymore. Pls help
@totty5827 күн бұрын
Oh I also have the stop start message on my dash saying it's unavailable intermittently. It's a 2010 audi a5 2.0 tfsi
@totty5827 күн бұрын
I'm back again! I forgot to mention the problem which is when up to temp and driving, the revs drop for a split second intermittently and sometimes when coming to a stop but still moving slowly, they cut out and the power steering goes off but the latter of the 2 seems to be the stop start function kicking in, which I find strange as I've not come to a stop completely and I'm still in gear. Usually when I've slowed right down and I'm turning a corner. Which is scary lol
@SchrodingersBox6 күн бұрын
what data do you have?
@totty5824 сағат бұрын
@SchrodingersBox sorry didn't see you'd replied. I don't know much but what data would I need? I have an obd eleven scan tool so if u point me in the right direction I'll do my best to provide it. I've just changed the sensor and the car drives without cutting out but now it cranks for 5 seconds before it starts and the idle seems slightly rough.
@totty5824 сағат бұрын
Also getting p008800 now
@cea-jaymales80317 күн бұрын
Here's a question, I have a Vac truck motor that got its key stuck on "start" for about 15mins until it died. Melted the main fuse and killed the starter motor. I replaced the key barrel, the main fuse and the starter and it ran fine for one day. Than the starter motor died again. I bench tested it and it was still throwing the pinion and spinning (which I could hear prior to bench testing it) but it would stop spinning with the slightest resistance. The auto technician said the starter motor clutch was fried. My question is, could the key being stuck on "start" cause a fault in the circuit? And if so could that faulty circuit be the cause of the brand new starter motor clutch dying?
@SchrodingersBox7 күн бұрын
I would just do a simple voltage drop test and I am sure you will find your issue.
@cea-jaymales80317 күн бұрын
@@SchrodingersBox hahaha yeah based off your video explaining exactly how to diagnose the problem I sure I'll find it too, I guess I was just hoping someone could save me the effort 😂 Great vid btw.
@moeflores23587 күн бұрын
Ol son you are one bad ass hombre !!!
@SchrodingersBox7 күн бұрын
hahaha that’s a new one- I like it!!
@credence92947 күн бұрын
I can't even begin to explain how horribly Matt botched the electrical work on my car, first off he showed up late looking like he'd been electrocuted himself, he fumbled around under the hood with tools that looked like they came from a cereal box, he duct-taped random wires together and used chewing gum to "insulate" connections, he claimed my battery had "existential dread" and tried to jumpstart the battery with his phone charger, then when he finally tried to start the car it made a series of awful train horn noises (how the hell did my car do that) and smoke started pouring out from under the hood, he said it was "communicating progress" while he danced around chanting some kind of native american war cry nonsense (apparently that "excites" the alternator), when I drove off the radio was stuck to freaking football channel which I hate, the windshield wipers start dancing to the rhythm of "Last Friday Night" by Katy Perry, the same god damn train horn honked every time I hit the brakes, and the interior lights flashed in time with the hazard lights like some sort of disco nightmare, I called him to complain and got a voicemail of him singing about being "the best scientist in the state of Colorado" to the tune of "Twinkle, Twinkle, Little Star," when he finally called back he said the car was "adjusting to its new electrical identity" and to give it space, now I'm out a ton of money and my car is a complete shit-show. I've never seen such incompetence in my life, avoid this guy at all costs unless you want your engine bay to turn into a big filthy sight of a wiring spaghetti bowl.
@SchrodingersBox7 күн бұрын
Cool made up story bro. Regards to your mom. She didn’t complain when I visited.
@credence92947 күн бұрын
@@SchrodingersBox Sorry I got really wasted and typed that in thirty minutes
@SchrodingersBox7 күн бұрын
Thirty minutes??? Looks like you spend at least a couple hours on that.
@credence92946 күн бұрын
@@SchrodingersBox Lol I have no idea what I was yapping about but it's so funny reading it now
@SchrodingersBox6 күн бұрын
It’s actually funnier now lol. Not sure why but it is.
@donkaiser67048 күн бұрын
Nice video. Congratulations to Athena, and much success!
@dr.knockers8 күн бұрын
2000 c3500 iac keeps idle high during drive.. only comes down when car stops
@SchrodingersBox8 күн бұрын
Pretty simple fix. First is it a speed density design or not? If it’s speed density design then the fuel trim will show the issue.
@TheAmsweb8 күн бұрын
Just subscribed to the Schrodingers Box Quantum Mekanix. I hope to learn a lot more and sure I will
@SchrodingersBox8 күн бұрын
I 100% guarantee you will. It will prove to be the best decision you have made in a long time!
@EdwinTata-rx5zk8 күн бұрын
I love you videos
@jedi-mic8 күн бұрын
Yeah I think I got a problem with mine valve body it situated in there maf? it's a Mercedes r170 compressor 03 it looks Sooty I was wondering best way to clean it, can you use brake cleaner or contact cleaner to clean it out is it safe or what do you recommend thanks!
@user-tp3hg4se1s8 күн бұрын
Power steer pump pulley seized up on my 97' hard starting and hard running 🙄🤭
@PeterTrimboli8 күн бұрын
So with the oil pressure test kit are you running your vehicle with no oil filter?
@SchrodingersBox8 күн бұрын
Yes. But only briefly to get the pressure. It’s what maybe 3 seconds?
@metal1mark738 күн бұрын
Do engine mounts leak oil from the top of the black rubber?
@SchrodingersBox8 күн бұрын
Hydraulic ones do when they go bad, yes.
@metal1mark738 күн бұрын
@SchrodingersBox I have a 2016 Mazda 6 are they hydraulic?
@josephfaro90139 күн бұрын
As always, another great tutorial.
@SchrodingersBox9 күн бұрын
Thank you!! This was a really basic one. $80 in diagnostic equipment would diagnose it!
@user-sj6gj3oh1k9 күн бұрын
Exelent
@user-sj6gj3oh1k9 күн бұрын
Good trueining
@user-sj6gj3oh1k9 күн бұрын
Thenks
@SunnybraeCroft9 күн бұрын
Very interesting, thanks for taking the time to record
@ozzman5309 күн бұрын
I didn't see anything I couldn't particularly live without. But I thought it was cool I bought the same hot staple welder a few weeks ago. I used it to repair the dash in my Silverado. I also bought the Allturn plastic welder that looks like a soldering iron and comes with tips that allow you to feed weld rod material through the tip melting it as it goes. It's a bit easier than the tips that come in the staple welder. Great video, I may have to check out the shorty sockets.
@SchrodingersBox9 күн бұрын
I will check that allturn soldering model!!
@ImReelySuqi9 күн бұрын
I have a fun one in playing with right now. Customer states they have a soft brake pedal. Attempted to bleed the brakes and could not bleed the front drivers caliper. Further diagnosis showed that fluid was not being sent out of the abs module to the hardline for that wheel. Fluid is coming in and out through the feed and return lines, and every other line to and from the abs module has flow. I'm working with no electrical diagram for the connector at moment.
@stansbruv31699 күн бұрын
Flexible nut driver!
@brianatkinson13999 күн бұрын
Had crank/no start on my 1997 Honda Civic, it ended up that the ICM was bad, replaced it and the car started right up.
@AodhMacRaynall-dr1sf9 күн бұрын
the only problem with your channel is there is so much stuff that's good, I don't have time to do it all.
@SchrodingersBox9 күн бұрын
Hahahaha that’s a good problem!!
@wiltonpayes56149 күн бұрын
Some automatic vehicles have coolant warmers connected to the transmission to warm fluid I seem they get bad internal leak
@donkaiser67049 күн бұрын
What about looking for a stream of pressurized coolant with pan off using an endoscope?
@SchrodingersBox9 күн бұрын
Yes I mentioned this. We would totally see a stream of coolant at the pan for sure. But we wouldn’t see where it is originating from. So it wouldn’t tell us anything new.