New Crank Sensor, Still has P0335,P0336. How to Diagnose DIY

2006 Silverado with a P0335 code still not fixed after owner changes Crankshaft Position Sensor. Where do you go from there?
Still not clear on how Crank and camshaft positions work? See my training videos at www.schrodingersboxqm.com

[@rontiemens2553]

Excellent presentation, Matt. THANK YOU. Decades ago on my very first (part time) job as a teenager my boss used to tell me, “Son, what you don’t do with your brain you have to do with your back.” On automotive, what you don’t do with your brain you have to do with a wrench. Thanks again for showing the way on using the brain on auto diag and repair.

[@SchrodingersBox]

Thanks for sharing! That is great, great advice. Actually most mechanics I have known have had bad backs too. turning a wrench is often bad on your back so the less you do it and the more you can do on a computer or using a dry erase board, the longer the career you will have! I will have to use your old boss’s advice in my next video. I love that.

[@rontiemens2553]

@@SchrodingersBox Quote originator's name is Stillman Terry, and I heard that quote from him more than once from 1975-1977 when I worked for him in the Village Butcher shop in Annandale, VA. He was a meat cutter by trade, and could cut up a steer and then put it back together and it would walk away ( ;-) ). He's a retired Green Beret. I got a lot of valuable lifelong wisdom thanks to him. :-)

[@ThunderbirdRocket]

Like how you used a process . Thinking about the facts , diagnosing the root cause , planning an efficient course of action, and verifying the fix. Also like the way you allowed your lady to have a role ! You looked at the camera and simply resumed coaching us after she fixed your hair nice . 👍🏼

[@travisflowers8689]

Definitely helped me along the way of electrical problems! Definitely puts a lot of work into making time to give others a on point tutorial! A lot of respect! Thank you.

[@SchrodingersBox]

Glad it helped!

[@labradormcgraw]

All credit to Vicki here - it's amazing what a great stylist can do to ensure that we aren't subjected to repairs by Foghorn Leghorn in a baseball cap. I will admit that those tricky shots underneath the vehicle were pretty impressive too. Great tutorial. 🐓

[@SchrodingersBox]

Hahahaha foghorn leghorn lol!!!! Now I do Declare!!!

[@labradormcgraw]

@@SchrodingersBox I couldn't write - I say I couldn't write the message for laughing! 😅

[@legallass9905]

🤣 I'm not responsible for this look! I need to get to him before he steps out into the garage. Foghorn Leghorn... hahaha! Yes, too funny!

[@kevinbone5848]

Careful boys, your showing your age again! Kids these days don't see those violent cartoons! Mine are on VHS.

[@nabeeljacksonrhoda6480]

The background story, the case study and mapping procedure, this is keys to success. I appreciate this kind of thought, this kind of logical and technical approach to a scenario. Im currently dealing with a crank no start issue which had a camshaft sensor signal error on the scan tool and we've already detected shoddy wiring. We havent gone through the entire harness but at the connector itself was some damaged wiring and bad soldering and connections made. Replaced the sensor but still no start. So ill test the sensor wiring once the mechanic arrives tomorrow or before he gets here and we'll see how this gets us. Thanks,. Happy to have invested 31 minutes of my life in this informative video. Much appreciated from Cape Town, South Africa.

[@nedcramdon1306]

Hope you found the short.... or sensor

[@Guillaume16641]

Thank you for your precious explainations. With P0336, my Citroën C4 1,6 16V sounded like a lawn mower. When I stopped engine during about twenty seconds before restart, I could accelerate normally once again. I've replaced the spark plugs this afternoon. For the moment, I no longer have P0336 and no longer roug stalling. 9:00

[@user-rl1oj4yh2c]

You are the best i have a 97 gmc 4.3 v6 vortex having the same issue with the crank position sensor . you have explained and i gotta say im hands on although u did a wonderful presentation and covered everything that needed to be shown in how to diagnose the p codes thank you for doing wat u do .

[@1UNIQUE1986]

This channel is absolutely awesome I love how you break down the diagnostics.Ive been having a similar issue with my wife's 2008 Chevy suburban the car is hard to crank than the traction control deactivates no signal to the tack at all car will drive with a p 305 code but hard shifts into second gear pings and runs like crap. I reset the engine code and the car runs solid for a few days and all of a sudden just decides it wants to act up.I look at the live data on the scanner and it doesn't even have a hiccup while driving. The other issues is a slow crank like it's got a dragging starter or bad ground things giving me one hell of a headache but after watching this I know I need to look at these wires and see what the hecks going on.

[@TheMikesylv]

Try not to get annoyed by comments there are way to many people who are willing to share their less than helpful comments, love your videos it’s a pleasure to watch someone who skillfully methodically does their job and shares their wisdom of how to work smart.

[@barrymoss900]

As usual another great detailed video,, thanks Matt

[@judahschwarz3552]

You're a pure genius bud love the videos

[@dylangriffith6662]

Your videos are excellent and informative. Your approach to problem solving and the way you fix things is excellent

[@nelinho1981]

I told you that The greatest thing come free, it takes a great human being to share this kind of info in detail. You reminded me of the time I was back at school! This will relief 😮‍💨 a lot of head aches! Thanks 🙏🏿! You are a great man!

[@vatcheohanian2565]

Thank you for the "next door neighborhood app" and thanks for all your detailed videos! God bless...

[@k1ckyscotland988]

About time!. You were the only magician on tv without a beautiful assistant. Glad that's sorted. Another great video.

[@InsideOfMyOwnMind]

What do you mean? She adjusted his hat.

[@k1ckyscotland988]

She did help last week with the fuel trim video. That counts as a regular appearance.

[@greghobbs1728]

Scotty is good for entertainment and basic information. Matt is a scientist/mechanic who's great for determining the truth. I can actually hear the wiring/short in my 08' Subaru, AFTER the "reputable" local shop replaced the ecu , which didn't solve the problem, and, after I got a "BlueDriver" obd2 scan tool which immediately caught a crankshaft position sensor code. "Tickling" my Subaru ( visual inspection and listening ) has me moving scientifically closer to the Truth.

[@grngs1]

WTF

[@tyronhardeman2508]

A scientist with a great analytical diagnosis

[@louisribble9769]

Thanku thanku had same problem on 2008 avalanche, changed sensor worse. Beat head on hood few times no change. Watched a lot of videos nothing. Seen yours on electrical problems started checking wires and connections. Found to be main ground on left engine block connector was almost broken made intermittent contact. Replaced connector alls good. Thanks again!

[@beresfordjames8404]

You are a great teacher I just learned a lot and I know I'll be learning more from you

[@SchrodingersBox]

thank you!!

[@kennethpaladino4948]

Thanx 4 the video! My 100th anniversary harley truck has this same problem! Replaced sensor twice now! What a pain! I am convinced it’s in the wiring! Can unplug & replug it in & it’ll start! Sometimes! Intermittent problem! I’m thinking the factory original was not faulty afterall!

[@tinytim9453]

Good stuff! I could listen to you all day and everyday and not get tired of it.

[@SchrodingersBox]

Wow, thank you! I don’t think too many people would agree with that though hahahaha. but it is a great compliment.

[@wisconsinadvisor7496]

Wow. A great person and excellent videos. The video that I just watched might be the best KZbin help video that I have ever seen. He goes into detail and I found that so helpful and complete. GREAT. Thanks for making this video !!!

[@SchrodingersBox]

Glad it was helpful!

[@joemayor3681]

Best diagnostic channel on the net!

[@Lambros_Stefaneas]

well done. very good approach of the problem.

[@HasSan-jj4nl]

Excellent explanation 👍

[@AFatherToTheFatherless]

No better instructor on KZbin 👍🏽

[@davidnguyen6806]

thanks! one of my 6 pin connector was bent on my 06 honda. even though it went in one of the pins didnt connect. You are awesome!

[@kevinsutton6512]

absolutely love your tuition and in depth methods. ive gotta admit i 'was once' a part changer but really enjoying the understanding how it works and live readings before judgment . love this channel !

[@SchrodingersBox]

Thats great to hear!! You're very welcome!

[@JayBrass]

Wow I wish I could just have you come and fix my truck 😂 I’m having the exact same issues

[@whitetiger8652]

Nice job Matt!

[@ozzstars_cars]

Here I was getting excited to see the piercing probes come out to play and all we needed was the wiggle test. That saved precious moments and gives more Sunday afternoon beer drinking time. haha

[@SchrodingersBox]

yeah it’s funny you say that- I was going to use the pierce probes but the CKPS wiring goes right into another harness that is still behind the starter so you still can’t access even with probes without removing the starter. no way around it, starter has to come out.

[@chrismay9319]

My old shop teacher in high school used to tell us about the wiggle test. Used it many times to success

[@ozzstars_cars]

@@SchrodingersBox good old fashion GM engineering.🤷‍♂️ I've known to poke those wires at or near the PCM to take a look see. The good point Matt is the truck is fixed and somebody owes you a few drinks. 😉

[@DanielleHaupt-sl6de]

Most knowledgeable video yet thanks bud

[@rochestertommy9995]

This guys the best at teaching

[@mckoylach1622]

Great,elaborate diagnostic procedures….

[@jgeorges3061]

AWESOME and thanks for sharing brother Matt.

[@SchrodingersBox]

thanks for watching!!always good to see you

[@dan260140]

I like how you had to fix someone else mistakes.. for example they could have done it correctly but you did it correctly. Cuddos to you.

[@SchrodingersBox]

Thanks man, I appreciate that. actually about 80% of the time I am fixing someone else’s mistakes. I almost get the car after several others tried to fix it.

[@tellsthetruth894]

That was a great learning video. Much thanks

[@SchrodingersBox]

Glad it was helpful!

[@tom721100]

Good work. Very helpful. Thanks.

[@Pablo_Automotive]

Nice job Matt🔧☺👍

[@SchrodingersBox]

Thank you! Cheers!

[@robertnz71]

I had the same p0335 code on a 2007 G6 GT 3.9L .. I changed the knock sensor out with one from O’Reillys and the code still came back. I double checked the wiring with a multimeter from the connector up to the top of the harness and both the wires were good so I knew that it wasn’t the connector or the wiring, so I bought a AC Delco knock sensor, and put that in and everything is good, no more check engine light!

[@Joserocha-wm9de]

This car/truck has a self lubricating chassis system working great 😂 , nice job Matt 👌

[@SchrodingersBox]

lol yeah it even lubricated my garage floor lol.

[@Joserocha-wm9de]

@@SchrodingersBox 😂😂😂😂

[@heatmyzer9]

Gogatz.

[@lawrencewheeler8868]

Giggaty

[@user-hm3kn9wv5m]

Your pretty straight forward; i can say cause these real life scenarios can be a pain but i like the one with the cks your initionally saying is if you have a good referance, by replacing the cks is a sure fix if the wires are not broken

[@SchrodingersBox]

If you have a good reference AND ground AND signal integrity then and only then is it guaranteed replacing the CKPS will fix it if there is no CKPS output.

[@demoking1422]

Damn wish you lived next door I have never seen anyone with your knowledge explaining code issues like this , Don't worry about your hair buddy You Rock ! Thanks !

[@SchrodingersBox]

What a nice compliment.

[@nokalamaduna2709]

Well done Matt, this was enjoyable as always. You're my greatest teacher when it comes to diagnostics.👍👍👍

[@SchrodingersBox]

Thanks again!

[@nokalamaduna2709]

@@SchrodingersBox You're most welcome Sir 🙏🙏🙏

[@grenvillephillips6998]

Very satisfying!

[@lizardking8388]

You could also test each connector pin with the car shut off using an ohm meter, by back probing a pin with one lead and probing the other end with the other lead and then wiggling it. If it deviates even the smallest amount from zero, you have a bad connection. Doing it this way is also safer as long as you probe each pin to ground first to make sure there isn't any live power. Unlikely that there is, but better to be safe than sorry.

[@wheelsbytheocean]

Mate!! I love your vids!!!! Been watching heaps Cheers! 🇦🇺 🍻

[@SchrodingersBox]

Glad to hear!!

[@jdaniels1313]

Fantastic! Thank you for sharing the all-important thinking skills for fixing weird little schtuff like this. Subbed! I so appreciate your though process and coming up with a diagnosis hypothesis and plan, based on analyzing symptoms Having a theory that we are looking for a sketchy wiring/connection issue FIRST is miles ahead of simply replacing parts. Recently had a Ford Focus 2002 with no blower. Found bad fuse. Replaced fuse. Nothing. At that point, removing blower motor and testing with 12V power supply, motor appeared dead. Took a flyer and bought a new motor--tested good on same 12V power supply. Yay! Not so fast--installed motor--nothing. Except on Max blow setting--worked on that. Aha! That is classic bad resistor symptom. Replaced heater resistor--success! All worked! Your approach of seeking "Why" symptoms happened... Well, blown fuse apparently a result of motor seizing up that final time, and possibly blew out the resistor too, or maybe resistor already bad. Anyway, love your process of analyzing the symptoms and seeking to understand most likely causes, and having a plan before simply throwing parts at the problem. Thank GOD I didn't have to depend on my auto mechanic skills to feed my family; now THAT would have led to a LOT of trips to the Food Bank...

[@jarinwilson9539]

Impressive........most impressive!

[@InsideOfMyOwnMind]

Ok, this is just a niggly bit not even about the car. One of the things you will see other KZbin automotive repair channels do is when they are introducing a car to the audience they will typically show at least a portion of the vehicle. I know, it's just a sort of comfort thing but it helps. Do what you want, I will keep watching your stuff whether you like it or not.😁. You already know I like them all.

[@SchrodingersBox]

I did initially show the truck but I edited it out because it was so big it couldn’t be shown in a single frame of view so I figured there was no point.

[@InsideOfMyOwnMind]

@@SchrodingersBox Fair enough. Respect.

[@frankguerra3314]

Move a wrench on what😂😂😂 man u remind me of my oldest brother.such a smartass .love u man. U help me alot with your videos. Thank you....

[@SchrodingersBox]

Hahahaha I consider that an honor!!!!

[@Ted_E_Bear]

Thanks Matt !

[@Bramon83]

my man living in 2020+ with mouse trails turned on... respect sire.

[@SchrodingersBox]

Hahahahaha!!!!! It helps me see the arrows in bright light but great observation lol

[@johnpaulgarrett1]

This was fantastic!

[@SchrodingersBox]

Glad you enjoyed it!!

[@bchrisl1491]

Good video Matt. Check out an Astro 9477 ratcheting crimp tool kit with interchangeable dies. It has dies specifically designed to crimp those open faced terminals as well as the common insulated closed barrel style that is so ubiquitous. It makes a NASA grade crimp every time. I like mine because it crimps both tangs at the same time and there is no guess work about how far to place the terminal in the dies. FYI

[@SchrodingersBox]

thanks man, good to see you and yeah good advice. I very seldom have to repin a connector but yeah when I do it’s a real pain using basic tools for the crimping.

[@carlitodiy8384]

Have you noticed the speedometer move when u revved the engine after the repair

[@sensibleamericans1]

Great video!

[@sensibleamericans1]

FYI, You saved me a lot of extra leg work. My Crankshaft (yellow) wire arched of the exhaust manifold. Found the problem in minutes (didn't even need a wrench LOL!)

[@Shadow3ffect]

I just changed my CPS 2014 Hyundai accent GLS 1.6 liter before I replaced it it kept stalling. Now it’s jerky jerky runs like crap. Do I need to have it relearned to get it to run good

[@georgebell3964]

Great job

[@jamestemple1041]

Awsome video my pontaic g6 has same problem have yet to find bad wire

[@ripjaws6229]

Who gives atoss about scottys fans anyway... I love your vids and I learn a heck of a lot from them

[@LayZeeDawg]

CPS behind the starter, go to the Mitsubishi 4 cyl. Line, have to remove the belt drive, pulleys, timing covers, and timing belt.

[@andrewhigdon8346]

Could you do a video on “repinning” automotive connectors?

[@mrb9642]

Just discovered your page. Seems like another “ready, aim, fire” brother living in a “fire ready aim” world. Love your thought process, analysis and approach. I laugh because all the dirty fingernail types have already changed 10 parts and decided that the engine is “just shot due to age”. Don’t waste your time trying to convince the “fire ready aim” types to slow down……just know that us 2%ers get your channel completely. I need to go back and see what your source materials are around scan tools, online manuals and such……..

[@fire7765]

Good job

[@spiridondimaris465]

Well done good job

[@golfnut533]

What type of scanner do you recommend for a diy guy? Thanks

[@mikefarmer2121]

changed CSPS, still Same 335,336 with 07 6.7 Ram, then exhaust filter 80%, retired just putt about small town, drove on freeway(UGH) 50 miles Exhaust msg cleared. still 335,336. Thanks will try this now...

[@SchrodingersBox]

I would also check your cam and crank sensor correlations as well.

[@panasonicchrome7915]

Good Video 👍😎

[@georgesontag2192]

Many after market crankshaft and cam sensors don't work correctly. If your going to replace, get the oem part.

[@reyguerrero100]

Great job!!! Quick question, not sure if anyone has asked this before but, do you use only the auto ingenuity scan tool or do you also have the enhanced options?

[@SchrodingersBox]

Good question. yes I have the enhanced version. it’s called “Pro Line” and pretty much is the enhanced version compatible with all american, asian and European models.

[@georgebonney90]

Thank you sir👍

[@johnphillips1001]

I fix machinery all the time excellent work buddy 👍😁

[@SchrodingersBox]

Thanks 👍

[@jamesreeman8906]

Hwy i have 3 kids and im in need of direction or help. 2008 clk350 80k miles. I replaced mine die to code p0336 i recieved. I bought the replacement from orielys and after replacing it, it turns but wont start just like before i checked it with my obd. Does it need to be calibrated or something with the ecu or something ? Please help me.

[@PaulCTownsend]

Good job thank you.

[@charliemagoo7943]

These will drive you crazy because the cam and crank are supplied by the same 12v in the pcm. I remember an 05 doesn't show they are shared but what happens is an oil leak at the top of the engine breaks the wires down and shorts out the 12v on the connector to the cam. Many times it only shows a crank sensor code but will be a no start. If that 12v is pulled down to about 8v it will make it run like poo or set 300 code

[@stubaker1737]

That's my problem, throwing 335 for cpk and everything checks good down there so heading to the cam sensor

[@hounddog601]

@@stubaker1737was that the problem?

[@vernonchaney65]

That's my problem too! I have a 07 nnbs installed new motor new crank and cam sensor and I have a p0335 code

[@chui19801]

Very good. What I am trying to figure out is how to identify a crank sensor problem in a Holley Terminator X. The car has an intermitent stall or bog at WOT only. Off the line of while cruising.

[@SchrodingersBox]

What is your signal voltage? That’s the very first step.

[@rollin19]

I have a question for you. There seems tto be alot of issues with BCM system,with water leaking into Hummers and it creating a mess of electrical issues. Not only that these GM cars and truck from the early 2000's have electric issues. I have ad H3 Hummer, that has haall kind of electrical issues because of water coming in from the leaky sunroof,and draining down the a pillar and getting to the BCM. Now the sunroof has been siliconed and so no water is coming in. Now the question,I replaced the BCM with a preprogrammed unit,and went through the 30 min passlock system relearn and the car wouldn't start. Did it several times and still nothing. Notice that the crank sensor code along wiht air pump code is on,so the car isnt gonna start with the key. But if I tried using just the remote start and did the 10 min reset for 30 minutes and the car starts up,but will not start with key. In the beginning there were 2 codes on the crank sensor and the air pump,both parts were replaced and the codes never shut off, I think the car is not starting from the key because the crank sensor code is still on,check the fuses and wires for breakage,every problem sight of a ground missing,nothing!

[@user-cc4sd8qe7f]

I have a 2004 dakota 3.7 engine with the same problem, the engine was removed for oil pan replacement exhaust leaks on the heads,the engine ran fine before removed after the engine was installed back in it make about 10 revolution before it fire the po355 came on it run fine at a idle but it won't pass over 2200 hundred rpm replacement or cps was done and the problem still there.

[@frugalprepper]

Hey I checked on my car and it's not a wiring issue. What would be the problem?

[@SchrodingersBox]

lol. you pulling my leg!!! good to see you back. been a while!!!

[@cash3612]

Will this problem also trip reduced power mode? My Yukon 6.0L is experiencing P0336 intermittent and after warm up. Then a very noticeable clunking sound, runs extremely rough and goes into reduced power mode. I then turn it off, restart and I’m good to go for a day or so

[@SchrodingersBox]

No- a cam or crank sensor issue will not affect power. it will affect engine running at all

[@bradensmith888]

Hey Matt, I have a diagnostic question. I'm working on a vehicle nearly identical to the one in this video. It is a cranking no start scenario with no pule signal to the injectors and no spark. I have a positive reference at the cps plug, and the fuel pump kicks on when I do the crank bypass shown in this video. What I don't have at the plug is a constant ground. Would you lean towards crankshaft position sensor with this information, or chase the lack of ground?

[@SchrodingersBox]

Funny you mention this. I just ran into this exact thing. most likely the ground is broken- it’s located on driver’s side of engine under manifold.

[@bradensmith888]

@@SchrodingersBox I was unable to find any broken wires, and it looks like that ground goes into the fuse box. Would this ground be ecu controlled? Could I short that wire to ground to close the loop without damaging anything electrically?

[@bradensmith888]

After some more wire wiggling, the ground reference fell out of the plug going to the crankshaft position sensor. I replaced the plug and the vehicle fired right up. Thank you so much for your help with this! In hindsight, I should have pierced the wire further up, but I hate exposing wires to the elements. Thanks again!

[@mrmikesparks]

Matt, I am having the same issue with my 2006 3500 15pax van. Runs decent when cold, VERY intermittent rough run/complete stall when warm. Currently has the P0335 code. Your thorough approach and detailed explanation is FANTASTIC! Thank you for sharing your knowledge with us! I will let you know what I find out tomorrow when troubleshooting, but using your scientific method, I am guessing a wiring short as well. Cheers from a 5280 native!

[@SchrodingersBox]

Well I appreciate that! i hope it makes up for the fact I am not a native here hahaha- Sorry for intruding lol.

[@muhammadmustafa2797]

Dear Matt, i have the same problem with my yukon 2008 model i change three sensor still same when cold start car is perfect after got some heat the check engine light flashing and code p0335 . Can you please tell me how you solve the problem

[@SchrodingersBox]

Start with FASTEC and see if it’s fuel air spark or timing.

[@559caliii]

@@SchrodingersBoxi have a 2004 chevy silverado 4.8 and it died on me coming home from work. I changed the crankshaft sensor and now it starts up but onece it reaches temperature it shuts off and don’t start anymore. I don’t have no codes anymore

[@SchrodingersBox]

Why does it shut off. What is it losing? Spark or fuel?

[@joeturtleneck2300]

diagnostic king of youtube 👑 im racking of my brain trying to figure out what this 6.0L gm motor is doing. getting no codes but reduced power, chugging and chocking, stalling, not starting up immediately...still no check engine light, ive checked the obvious...ignition...air intake, to catalytic convertors...i dont know what to do next

[@SchrodingersBox]

when you say you checked ignition, cats and air intake what data did you get and how did you get it?

[@TrueHearted78]

Great job. Watched whole video. Because I had new connector replaced. They are saying it's my Reluctor and Crankshaft. Does the engine has to be pulled for that?

[@SchrodingersBox]

Yes it would.

[@brentlevitt6029]

Well worth the 30 minute watch

[@jony2660]

Hey, just have the po336 code only, for my undesirable po335 never came on. Anyhow, i done my checks, my ground is good and reference is good, but when i do the ckp bypass, i don’t hear the fuel pump. What is your thoughts on this? (Learning as i go with wiring) (P.S it’s a gen v, different color wiring but its the same set up)

[@SchrodingersBox]

Seems clear you have no signal to the PCM. Check signal wire continuity.

[@jordanjerrard403]

Hey I’ve done these tests on my cps there is a delay on the signal wire also, I’ve exposed the wire further away from the plug and still a delay there also. What would you recommend me doing next?

[@SchrodingersBox]

not sure what you mean by delay in signal wire

[@kamdhman3709]

Thank you

[@emmylewis1903]

Hi! I have a 2006 Chrysler Town and Country. I replaced the crankshaft sensor, no codes were popping up related to the sensor but I was just going down the line of parts for another situation...I am now in the position of the video, where the car is running worse and I now have codes 0339 and 0335. Is it the relearn process that is doing this? Blessings!

[@SchrodingersBox]

The relearn has nothing to do with sensor performance. It’s strictly for misfire calibration. Start with the basics and look at your sensor voltage from the signal as a basic first step.

[@mdcjoly5147]

Very good ty

[@tellsthetruth894]

Please a answer a question for me: my 2007 Toyota Rav4 4cyl 2.4 L engine, has a no start problem only when engine is hot. But i get no trouble codes what so ever Should I change the Crankshaft position Sensor regardless. Other than that this Rav4 runs great all of the time.

[@SchrodingersBox]

what is your data from the crankshaft position sensor indicating that is the issue?

[@jahrain1693]

I have follow ur channel to become a professional mechanic.u gave me a free training on your paid channel.through your videos I got know Paul and I really appreciate it.I have Autel Maxisys ultra.thanks

[@SchrodingersBox]

ah that’s great to hear!!!!

[@mrflinstone2553]

Im having this issue on my 07 yukon everything is good on cold start, after warm up i shut it off & it sounds like a dead battery when cranking takes long to start & when it does the rpm doesn't work rhe ac doesn't work the cooling fans work weak causing antifreeze to bubble up stabilitrac traction control light comes on throws a p0336 then throws a p0335. Could the wiring cause this as the one you worked on or what should i check? Thanks

[@SchrodingersBox]

Yes wiring could cause that. what is your signal voltage from the sensor showing?

[@mrflinstone2553]

@SchrodingersBox thanks for the quick response, im going to try to work on it tomorrow if i have time & will definitely get back to you. Thanks so much

[@shumanchu1]

The repair on the trans cooler line (worm drive clamps and hose at 18:50) is guaranteed to rub a hole in the return trans cooler line right next to it. That poor 4l80e is going to burn right up when it does. Nice diag and repair on the crank sensor harness. Thanks for the tip on the "crimp supply" kit. Matt, do you know if autoenginuity has to reverse engineer things like a GM CKP relearn, or if they just pay GM for the information?

[@SchrodingersBox]

nice observation on the trans cooler- never even noticed it because I was fixated on filming the sensor. I usually do keep an eye out for stuff like that!! no idea on the Autoenginuity question. I am not sure if each manufacturer is responsible for the communication abilities or if there is some type of “engine” that is used on all scantools.

[@DANNYN224]

Nice

[@johnaclark1]

CKP relearns are pretty much just for more accurate misfire counters....

[@Kamel419]

My sister had a 03 Nissan Pathfinder with p0335 that had the exact symptoms he described before swapping the crankshaft position sensor. I could never get confirmation it was the sensor and it only threw the code one out of maybe every 10 times it refused to start so I suspected it was just a referenced code. The only thing I could find wrong for sure is the fuel pump was out of spec, only giving about half of it's rated fuel pressure. Not fully understanding the mechanisms but trusting in the data I had, I decided to replace the fuel pump. Completely resolved the issue. I suspect what was happening was the vehicle had no way of knowing it had died due to being starved of fuel, so it threw a crankshaft position sensor when it saw the crank was no longer spinning. What the PCM didn't know is that was legitimate, the crankshaft _really wasn't_ turning anymore due to a sudden loss of fuel. I further suspect the fuel injectors have a very specific pressure that they will no longer open at all (thinking like a "burst pressure"), causing the low fuel pressure issue to go from "running fine" to "not running at all". Moral of the story is if you see p0335 or other similar codes, don't just go replacing the crankshaft position sensor.

[@SchrodingersBox]

actually I totally forgot to mention - a fuel problem or misfire can cause a P0336 but it won’t cause a P0335.

[@anthonysova7117]

Excellent as always Yes mechanical is mostly visual while electrical is theory and practice and the repair usually takes less time Matt your vids always make me think before doing By the way have u ever had an erratic problem caused by a wire that was stretched? CHEERS

[@jamesmays6826]

Well I didn't fast forward anything but I did rewind it a few times.