Client Replaced The Engine On Their Scion FR-S & Now It Won’t Start!

This one was a lot of fun! Client brought the vehicle in after replacing the engine, and informed us that it spins over but doesn’t start. This one took some serious detective work to pinpoint the root cause. But it’s so satisfying when you can find problems like this. We hope this step by step diagnosis helps! Enjoy!
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[@johnhill3644]

flywheel misaligned excellent diagnosis Sherwood keep those videos coming

[@zenaslloyd5074]

This is a master at work. I am shaking my head in disbelief on how you were able to pinpoint exactly what was wrong with the car. It would be nice to hear what the customer said when you fixed the problem. Anyways, I am definitely subscribing

[@ThunderbirdRocket]

Tremendous diagnostic logic and tenacity ! Like a shark that smells blood - On It !! 👊🏼 🔥 🦈

[@theroyaltyautoservice]

Appreciate that! Thanks for watching!

[@ericknutson602]

Knowledge is everything in diagnosis autos these days Excellent 👌

[@MrSubaru1387]

Man, wish you’d have reached out, have a BRZ FA20 on the engine stand right now, could’ve definitely helped you on this one, at least sent ya a picture of the crank tone ring. Lol

[@JaceJackson]

Quit trying to be relevant

[@garysmith6376]

I was listening to you talk about people complaining about your direction with the 4 Runner and always hookup a scan tool first. Most of the time criticism comes from people who don’t work in the industry. I am a 25 year Toyota tech up in the Canadian salt belt and my experience decided what direction I start with my diagnosis on every vehicle I work on. I think you do a great job with showing your process to finding the fault. That’s what I’ve really learned from watching your vehicles. Good job, and thanks for sharing your experience!!!

[@Sundayorie]

Thanks for that wonderful video with a step by step approach to the issue that turned out to be the tone-ring put in the wrong position. Reminded me of a shop that called me to check on a BMW x5 3.0d e70 that the garage had just done an engine overhaul on but now after putting everything together it totally refused to start. The good known cam and crank waveforms from the Rotkee website helped me realize that the tone ring or reluctor wheel as they call it at times had been placed in the wrong position and for that one once we had the transmission out again we found that there was actually no dowel pin in the hole where it should have been and so just by locating the reluctor wheel in its official position by checking on a similar car that was a few miles away helped a great deal and it was able to fire up and just like you said I treasured that Rotkee website as it provided the basis for my follow-up diagnosis on that particular car. Always a pleasure seeing the amount of research and energy and logical thinking and lots more that you put into solving issues like this. Kindly keep up the fantastic job and we are following closely as always. A wonderful team to be around for sure.

[@gregoryprevost3183]

An old-timer tech once told us : "The most important tool in your tool box is patience".

[@boromoose]

I am not an auto mechanic, but I really enjoyed watching this video to the end. What a great demonstration of troubleshooting a very difficult problem. You guys are true experts. If I lived in your state I wouldn’t hesitate to bring my vehicles to your shop.

[@Davidnichols-p7w]

Excellent video,the power of a scope! And to know how to read it correctly! Totally awesome.

[@stevenakn1]

Great detective work and having faith in your tools man💪👊

[@theroyaltyautoservice]

Appreciate it!

[@brianjohnson3833]

Have to say that was very cool that you went through procedures to find out exactly what was wrong. Also very nice to have another engine of that sort down at your other shop. Everything worked out for the good, meant to be. You did great work on that one sir congratulations. Nice job guys!

[@429psi]

Great diagnosis guys. Love your videos, Mechanic in New Zealand here.

[@fv7765]

I had issues with my old Kia Picanto 1.1. The engine suddenly stopped running. I started diagnosing the issue and tried to resolve it until I found that the cambelt sensor crankcase metal spokes had a few bends because a little stone had gone into the cambelt cover! Great video.

[@robertbeeler7743]

Sherwood is a good tech I learn lots from him and support his channel. From Alberta Canada

[@jakewrxdrift]

I knew it, only because I've seen it before. The car I fixed was at 3 other shops and then I fixed it, I only have a cheap 2 channel scope but it was enough to see the cam to crank signal was off(wish I had the ats escope, love watching Bernies videos) it was a Subaru Impreza but has the same basic setup with the tone ring behind the flywheel.

[@usamaarshad9041]

YOU FATHER AND SON ARE GREAT TEACHERS❤

[@greggc8088]

Great find. Kind of like a Nissan with the indexed flywheel. Stinks you had to scour the internet for a pic of the tone wheel.

[@michaelhomdus4945]

Amazing, great diagnosis Sherwood. Yes, very enjoyable.

[@KeithWheeler-ey1pw]

Good deal ! Nice job and it’s nice to lay your finger on the exact problem

[@robertmobileman8304]

great video .. nice work RAS...EXCELLENT.. thanks awesome

[@SebastianSandberg-c6m]

Great video, camera work and editing is evolving :) Keep up the great work!

[@martinboucaud679]

Great job My friend. I love how you diagnose the hard jobs.

[@frugalprepper]

Nice Find. Got to love the power of a scope.

[@romadape1389]

really good job, as you said , there are a lot of mechanics that wouldn't be able to fix this without the right tools. 👍

[@ashercohen4739]

Professional diagnosis. If there are more videos like this, I would love to see them thanks

[@rmacuil5]

And people ask why we end up charging more than $125 to $200. On a consecutive diagnosis. Like I know for sure, you definitely charged your customer more than $200 bucks for your thorough diagnosis. Bet that autozone scanner can't tell them that tone wheel is in the wrong position 😂

[@bobcombs7138]

Excellent! Above and beyond!

[@raymondpresley3808]

Awesome find and great video!

[@jaredboyd4578]

Thank you for sharing what you are thinking! This helps with all troubleshooting!

[@bartscave]

Crazy diagnosis! Thanks for sharing.

[@Mr2004MCSS]

Great diag and case study. Keep them coming.

[@klrzl1539]

Sometimes it is something simple. Good diagnosis.

[@Jorkofvich]

Really enjoyed this one!

[@tylernelsonautomotive]

Excellent work Sherwood!

[@AndrewPoole-f9p]

Another great lesson. Yes, it can be a pain to find a known good. I run into as well. One thing I did want to point out is that after the code clear those that came back were permanent codes, not current or history. So those are mode 10 codes you can't and won't clear until whatever the drive cycle may be until the PCM clears them itself. If I'm wrong let me know.

[@Mr.Yamahawg]

Great video Sheldon and some good grandpa time.

[@HollywoodCod]

You can decipher what the correct wave form should look like based on the layout of the reluctor wheel

[@brenthann2623]

great video and thanks for providing others with the files of a good known timing diagram.

[@sheerwillsurvival2064]

That was awesome.. more please 👊🏻

[@theroyaltyautoservice]

More incoming! 👍

[@robertdiogenes2655]

Damn…. YOU ARE GREAT! FANTASTIC AS USUAL! Thank you!!

[@kevinfergusson8239]

Very well done sir.

[@robertgreen4050]

Great job that was a fun one 👍

[@theroyaltyautoservice]

Glad you enjoyed it!

[@vickenkaragozian2041]

Great video. But why one of the camshaft signals was upside down?

[@whocares4464]

The first thing every mechanic should do is a visual inspection! A five minute visual inspection can save you hours if not days of headaches!!! Your eyeballs are your first step in figuring out what is wrong

[@markdaigle9856]

Excellent Job Sherwood :o)

[@waterlilly2100]

EXCELLENT! Diag!

[@teslamr7333]

Amazing job! 🌟

[@lanwickum]

Kicked a tech off a job when he was hammering a flywheel on with an impact because it wouldn’t go. Alignment dowel stuck out 1/2” and it wasn’t even close. Luckily he didn’t wreck the crank. I didn’t let him work on anything by himself again. He finally quit. Boss wouldn’t let him go. He was only there a few weeks.

[@chrisforker7487]

Amazing video, new subscriber! Thanks

[@TheV6Guy]

Interesting to see that it didn't throw a code for crank to cam correlation. And good call not going down the path of checking signals to the ECU.

[@michaelmiller7601]

That. Was good buddy

[@marks2254]

Wow, nice, nice find!!!

[@viking.200]

Fantastic, just fantastic, very good find and very good video and hopeful a very happy customer, thanks for the upload I really enjoyed this upload, and I am looking out for the next video.thanks. p.s I am ready to use some good money on an oscilloscope can anyone suggest one, do I buy one to pc, or do I buy one too my launch tab7(I am a newbie one scoop) is 4 channels enough? And what brand would you good people recommend.

[@bestestname6757]

That was awsome. Off ebay pictures.❤

[@BenjieKabakoff]

Your videos are great!

[@robertendl9205]

A beautiful job of deduction. 🤓

[@KERTER21]

Great video, thanks

[@shamessun]

Thank you Chris you are the man

[@stevefrench4595]

This was awesome.

[@robertfrancisco1193]

good job!!

[@DanielFSmith]

The crank signal was not a constant amplitude on the problem car. I'm curious if moving the flex plate so that the pin is now aligned has fixed that anomaly. After all, if the plate was slightly askew then the pickup would read a slightly sinusoidal amplitude.

[@benb4688]

Just curious why you went after fuel instead of spark first if you added fuel and it didn't at least try to start. Seems like spark would be more likely than fuel. 14 minutes in and that just popped in my head. Thank you for taking the time to do these videos.

[@arniesand]

A friend of mine has a Nissan Murano that a mechanic installed a used engine on also. That engine will not start unless he sprays carb cleaner. I put a scope on the crank sensor and there is a signal, but the voltage is at 8 volts. The service manual says it should be at around 1.6 at idle. We're loading a new crank sensor into the cannon 🤞

[@jefffreyler8250]

Thanks for sharing,

[@dB_944]

It would appear that Subaru does not use one bolt hole slightly offset to keep this from happening.

[@danman9017]

good one tks

[@gaad7938]

What was the guy who installed the flex plate thinking (or was he)? If you are savvy enough to change an engine you should know that the flex plate has to be indexed correctly.

[@Bassmaster1256]

WTG Chris!

[@josephchamberlain9129]

Excellent

[@benrichards5160]

Any news on that Eric O collab? 😆😆

[@omarpulido8502]

Not likely considering one lives in upstate NY and the other in southern Georgia. 1000s of miles away.

[@benrichards5160]

@omarpulido8502 Last time I checked it wasn't up to you

[@theroyaltyautoservice]

They talk a lot on phone so I’m sure it’ll happen at some point! -S3

[@christopherhunt3961]

I had something similar. Engine was replaced and would not start. It ended up being the crank signal came from the teeth on the harmonic balancer were different than the original one that came off of the truck.

[@ldhennigan]

I'm curious if you guys thought about reaching out to Mr. Subaru for his thoughts.

[@rbs427]

That’s amazing!!

[@drew5955]

Extra Holy crap at 45:07 😂😂😂

[@FreeKanal]

Such a simple mistake could lead many to very very deep rabbit hole :)

[@glovefet]

why do modern steering wheel blister? Mine has lost a chunk or two from the wheel.

[@antwon2865]

I have a vvt a exhaust camshaft end position not reached/vanos inlet camshaft Tight or jammed on a 2002 330ci BMW that I did a timing chain on cause of other reasons.😊 lordy lordy 😊😅😂

[@seanmiller678]

Am i correct in the maf sensor was before the spot you put the "gas" in to start? Wouldn't that maybe have a issue? Thank you im learning

[@geb4024]

What software are you using for the diagrams?

[@henryyurkovic893]

Check for oil. No oil pressure, no start

[@jefffreyler8250]

How far did it migrate

[@drew5955]

At 20:43 I didn't notice a crank signal. Still watching the entire video, at this point I'm still unsure.😅

[@Logic4all]

The crank singnal is there but it is out by +-70 degrees...

[@drew5955]

Holy crap at 41:35

[@fastbagel993]

Is the other way to see it if you had a known good in cylinder capture, compare that too a known good cam crank; The in cylinder would be the same but the cam crank off.

[@LapMui-k2g]

I’m only 7 min in but have yall checked for OBD trouble codes first. If there’s no RPM crank signal, ECU might not send signal to ignition and/or fuel delivery systems.

[@XenomorphLV426]

The way you said automatic 😅

[@johnmitchell2741]

why didn't you put a scanner on it first thing

[@codo7]

I was wondering what the MAF was doing with the big hole in the snorkel. No tach, no spark, no fuel.

[@LatersOnTheMenjay.]

Curious question, but what does the tattoo on your right bicep say Sherwood? "Let y.... " ???

[@flashover8231]

What luck having another vehicle at you're other shop.

[@6.2turbosilverado]

What’s with the f350 that hasn’t moved in a long time?

[@douglasphillips1203]

He did a short about it a few days ago. It's a no pay situation - I think it's a warranty insurance company not paying but don't hold me to that ..:

[@wilmarbarrick3194]

"It ain't got no gas in it" -Sling Blade

[@ashercohen4739]

Waiting for the good oscilloscope graph

[@jimr549]

Just curious why you wouldn't start by plugging in a scan tool just to see of all the modules are online and talking?

[@theroyaltyautoservice]

We may do a video addressing this very good question! Hard to pack it all in a comment. Great question and he will answer it in a future video! 👍

[@gamestava]

I would say it’s probably because a lot of techs take what the scan tool says to literally and go down a rabbit hole. I use to be the same way. With a decent amount of knowledge you can figure out what’s wrong with most concerns without it. But it is a great tool to have. Just my thoughts

[@FREERIDE270]

​@@gamestava​ I agree with you that there's a lot of tech's who base their diagnosis solely off dtc's and data using a scan tool but that's not what will lead you down a rabbit hole. lacking experience on operations /functions of the scan tool along with the knowledge to read and understand what data you are collecting. What I don't agree with is scan tool data causing tech's to misdiagnos faults within a CAN system but won't with out a scan tool. Still trying to figure out all the comments about not needing a scan tool and your a shitty tech if you do....

[@gamestava]

@@FREERIDE270 I agree it is still really essential especially with todays cars. So many systems and without using a scan tool you make never uncover problems that are underlying. So any tech that says they never use one to diag are just bragging about a skill that really isn’t a skill. I use all the tools at my disposal.

[@robertmedina6875]

You need Phil probe

[@MichaelAllen-td1uu]

I can see you love what you do. I see you wear an Apple Watch nice. Your diagnostic software looks like Windows 95 lol.

[@KontoVonMir]

That goes to show that people who maybe shouldn’t even attempt to tackle such a big job get encouraged to do so anyway by some KZbinrs who make something like this easier than it is or people in the forums saying “just do it yourself, there are many videos out there”. There is a reason why a shop with technicians that have 20+ years experience charge what they charge. So it’s not messed up the first time around and you don’t have to backpaddle.

[@josephludwig1126]

❤

[@jameswood9764]

Always check the engine oil level before trying to start a customer car??