I totally dropped the ball on firing order. 1,2,3,4….5,6,7,8

@bruceb1771

Жыл бұрын

Cylinder numbering order, not firing order.

@tomvines4557

Жыл бұрын

Why wouldn’t you swap bank one sensor with bank two for testing?

@clbcl5

Жыл бұрын

@@tomvines4557 Wife units are always in charge of the banks.

@ZMAN_420

Жыл бұрын

My 1991 3.1L Firebird Firing order realy was 1,2,3,4,5,6, HAHA Great Content! 👍 🇺🇲

@tom7601

Жыл бұрын

1,8,4,3,6,5,7,2. :>)

This is a great example of the difference between an assembly line repair shop and the independent take-the-time-that's-needed shop. Ray's ability to cut through the crap and logically go through the evidence to isolate the trouble spot is his superpower.

@wolfguardian8312

Жыл бұрын

Indeed...

@GARDENER42

Жыл бұрын

Yep, especially with intermittent faults, which are always an absoulte bu88er do diagnose.

@GrantWilliams66

Жыл бұрын

Super power, Super man Ray. I watch rainman ray's to up skill, better than any school.

@GARDENER42

Жыл бұрын

@T Raybern Go on then: which hand's he going to hold it in?

You do not have to apologize for not being able to show the failure of the sensor. You are one of the few good mechanics that we can take your word for it. You proved that over and over many times. 👍

Ray, this is where you stand out, in my opinion. Being quite old enough to remember the "pre-technician", MECHANIC, era where the diag was paramount to the repair, YOU Sir are a stand out in your field.👍👍

Ray is like having a personal physician as opposed to a HMO doc. One treats you successfully the other just keeps you coming back for the copay

@samholdsworth420

Жыл бұрын

That's why I do all medical treatments myself at home in the garage

i changed my o2 sensors a couple times on my old 87 jeep Cherokee in the 34 years of owning and i always used a dab of anti size on the threads

Ray: ten minutes of technical explanation about why it's the electronics and not the engine. Me: uuuuh...😵‍💫 The conclusion: You are very smart and obviously invested in a lot of training, and cars are just waaay to overcomplicated these days. Miss the old days when my brothers and I could monkey around with the timing and change out some spark plugs and get the thing running. So glad there's guys like you around who have the knowledge and ability to help us cope with these crazy new vehicles!

I had a Crown Victoria that had me chasing P0171's and P0174's for months. At first, I followed what the codes said and I replaced the sensors one at a time as needed only to chase trouble codes somewhere else. The quality of the "new" sensors left a lot to be desired. It felt like I was in whack-a-mole hell and I was replacing "newish" sensors. The fix? I replaced ALL of the O2 sensors at the same time with Motocraft replacements. The crap quality aftermarket sensors ended up being the root cause. Whack-a-mole problem went away...I win.

I love these kinds of your videos where it’s not easy and to see your thought process! I don’t know about others, but this is the content I crave from you Ray! So awesome

@Drekulviin

Жыл бұрын

I prefer oil change videos.

This is awesome, iv been a mechanic for nearly 20years and I’m still in awe of the learning I do with these videos. Thanks Ray

Hi Ray, Love your videos I think you mix up terms open-loop vs closed-loop, though I'm sure you understand the principles behind the terms. An engine would have to start out open-loop when cold, since the O2 sensors aren't ready to send accurate data or verifying its data, where the ECM uses its tables and possibly historical data to guess the fuel mixture. Then the ECM goes into closed-loop where it starts using the O2 as feedback to adjust the fuel mixture. It's sort of like dead-reconing navigation where you're just going by designated distances and turns, vs navigation by landmarks, GPS, etc that you can "read" to keep your bearings. The former would be open-loop since there's no feedback to keep you accurate while the latter is closed-loop since you're using external data to adjust your navigation.

Flare nut wrenches would save you lots of stress and blisters . Best tool I ever found to pull O2 sensors out .

Difference in signals between Bank 1 and bank 2 indicates funky sensor bank 1 equals justification for parts Cannon. Good instincts Ray. Hope the new new one was Motorcraft, as the previous one obviously wasn't. Everyone don't forget to have a great day and as always, Greetings from Lake City 😎😎😎🌴🌴🌴🇺🇸🇺🇸🇺🇸

Great morning Ray and Happy Super Bowl Sunday.

Yes, I did like it. I actually learned something that would help me with my Chrysler.

I'd like to thank Ray and the algorithm 👍

Yep, I think you found it. Nevertheless, whenever a O2 sensor seems sluggish, it's a good idea to check the sensor's heater voltage and ground circuit as well as the sensor's resistance to make sure the sensor isn't running cool. Great videos Ray! I love how you diagnose problems.

@NemoConsequentae

Жыл бұрын

My first go to is (where possible), swap the left & right sensors. Easy to see if it is the sensor or something else then by whether the fault follows the sensor. Of course, this may not always be possible, (single exhaust engine, or different sensors / leads on each side.)

A word from my early carburetor days, stoichiometeric! A word a true technician knows the meaning of.🤗

Hi Ray, I need to tell my son who is a licensed mechanic that new is not always mean that it's good, thanks for the great videos, ps, we live in Ontario Canada and he has to deal with rust all the time,

Hah! Talk about a timely video! Chasing a P0171 Lean Bank 1 on my wife's Subaru EJ253 with 180k miles and 12 years old today - did the smoke check - no leaks. Already had a new OEM upstream O2 sensor on hand. Doing the sensor replacement after I finish watching your video and have a beer.

Putting in a new OEM sensor solves the problem. Aftermarket ones are problematic very often. Looks like you solved it.

Keep the videos coming, man. Been turning wrenches for almost 20 years now, and I still enjoy stuff like this! I've seen "new part" failures plenty of times, especially with aftermarket.

Loving your new shop and family involvement.

I've been waiting for Ray to come up against one of these. A fastener that takes an offset wrench to get a bite, roll the wrench and get some more, flip the wrench for another, then back to the beginning for the next flat on the fastener. Rinse and repeat until frustrated. Cotter keys and safety wire not curled up on nearby fasteners gouging the back of your hand, ones estimation of the heritage of the engineer and previous mechanic goes to a dark place. I'll now slip in a please on a recalcitrant connector before going full sailor speak, (The phrase covers us past Marines, we honor some of their traditions) But I've learned a sense of Zen watching Ray. That and the GAF meter sometimes just pegs out low. Keep up the good work Ray You give us all hope.

I echo what everyone else says. We really appreciate how you bring us along as you work through a diagnostic and arrive at the logical problem. Hey did you get the package I sent?

Me thinks you have your loops backwards. Open loop is when the engine is cold, and it runs on preset parameters, when the engine warms up a bit, it goes into closed loop, where the sensors give feed back to the ECM to adjust fuel trims and such.

Ray ... had a similar problem with my wife's Ford Edge, 2012. Independent mechanic found similar codes. Rather than replace the sensor, he told me that upstream was a solenoid, flap valve mixture control that occasionally gets stuck and fails. It results in a sensor 1, excessive lean state. He told me that most mechanics would replace the O2 sensor (had 75000 miles), but then showed me the real problem. No more sensor errors.

The downstream sensors on closed loop are doing exactly what they should be when catalyst are working proper and doing their job. You wanna see very little movement or fluctuating voltage at idle, this also means that your cats are in good shape.

This one was definitely not a candidate for the switcheroo diag. Lucky to get it out in one piece. In the great salty north I risk a dab of anti seize.

Your customers are so blessed to have you there!

LOL! 🤣 You said "irregardless"!!!! AGAIN!!!!

Hello, comment section, What is your routine when watching Ray? I live in Japan and watch about 8 hours after the video posts. After I wake up, I take my morning meds and begin watching Ray's video. After 20 minutes, the meds begin to kick in, and then I make coffee and finish watching the video. What is your routine, and from where are you viewing?

Ray If you get yourself a kitchen fire blanket. A small one. You can put that over the exhaust pipe, and not burn yourself. Done this many times myself and they work a treat.

@forgetfulme1719

Жыл бұрын

send one free to his PO box, he will never buy one.

I think the sensor that was in there was an incorrect one design wise. Take note of the holes in the sensor tip then look at the new one. That makes a huge difference in how the air flow effects the readings on that sensor. I experienced this first hand when a muffler shop put a sensor with holes in it in my 98 F-150 quit a few years ago instead of putting in a slotted tip oxygen sensor, it effects the readings for sure.

Well good morning Ray okay we're doing the mustang today love it

I ran into the same situation on a new Bosch O2 sensor on my old Chevy truck. It was bad out of the box... It happens.

Fantastic job, mechanical experience and expertise.

Ray is the man. Expertise in auto repair. I love watching these videos. Excellent work as always! Great to know there are good people out there to take the time for a proper diagnosis. You are truly a Doctor of mechanics!!

Happened to my '93 Ford F150 4x4. Previous owner replaced the mid tank fuel pump before sale. Still wouldn't start. No fuel to the inline filter from both tanks. I replaced both pumps and filter. Started right up! Moral of the story: Just because it's new, doesn't mean it works.

Stoichiometric! Very well said! Congrats. Your chemistry teacher would be proud. Dr. K.

I love this video!! Although I wish I had learned your philosophy of "new is not always better" before I had replaced all of my sensors 2 years ago from Amazon because it was cheaper 😅 My "01 Yukon kept giving me 02 codes (that I had to ignore until recently) and I was finally able to afford proper replacements and wouldn't ya know, no more codes! 🤣

You need some slim Wrenches Ray there only a few mm thick that would take care of the o2 sensor pretty easy @Rainman Ray's Repairs

Been there done that. 1998 Taurus 3.0L. Had bank 1 upstream o2 go bad. I replaced it with a Bosch. 3 weeks later popped the money light. I figured it was a wiring issue. 175,000 miles on the car. The readings were slugish to flatline at times. After looking over the harness saw no issues. Bought a Motorcraft sensor and all was fixed. Not sure abought Bosch quality anymore. Usually their stuff is over-complicatedly built anyway. Ah well.

I had a 97 f150 with the 4.6 I never had any issues with that motor. Loved that engine

I saw this car in the background of a previous video. I like it's looks including the wheels and throwback paint color. No garbage on it.

I hope you're not fighting this kind of gremlin that drove me up a wall on a '95 Dodge van once. It had an intermittent open in the sensor lead in the first six inches of the harness out from the ECM plug. Shove the harness a little to one side or the other and it would either cut in or cut out. The van had gone through two engines without finding the fault; when the circuit went open, the ECM went to a dead rich mixture, and enough of that had wiped the rings - twice. I bought it as a lemon, cheap, and it took me another two months to run down the fault. I scavenged a segment of wire with the correct terminal from a scrap harness, did the wiring surgery to install it, and put another 180K on that engine before I retired the van at 404K. So yeah, your guess that it *could* be a wiring issue is potentially right - but first you have to catch it in the act, like you said.

Thanks for the great vid Ray. Pretty sure you meant closed loop when you said open loop and vice versa. Just for the viewers more than you, since I'm sure there's nothing I could teach you. As an aside, could you have switched the O2's around to see if the fault followed the sensor?

an excellent video regarding lenght, diagnosis and content

That P1000 is a big clue, nice catch! Knowing that someone has been there before is always good info, even if the customer doesn't tell you.

Thanks Ray enjoyed the video, have a great day and take care of yourself and family and be Blessed ❤️❤️❤️👍.

Ray, loved the new subscribe stickers on the lift button box!

A wildfire lift and a mobile set of stairs would make life so much easier!

Morning everyone. Thanks for the content Ray

@topcat5777

Жыл бұрын

G' Morning! Have a pleasant Day :)

Those sirens during the O2 explanation sounded like a full on structure response they were laying into it hard. I'm glad I was still able to hear you over it.

Excellent tutorial ! Fun learning from ‘ya ! Thanks mate !

I've been able to slip the box end over the connector and use it to remove and install o2 sensors. A 12 pt box end works well in cramped conditions.

When you talked to us Wednesday. Everything pointed to sensor. Like you said. Just cause it's new doesn't mean it's good. Glad it was fixed. On to the next customer.

Excellent work ray awesome video and as always you and your families be safe 🇺🇸🇺🇸

Your ability to position the camera while you work is amazing...I tried to record myself swapping a water pump....Flop...complete waste of digital space....lol

Ray, your friend at South Main Auto Repair just found out that mew doesn’t mean good. Then he got spoiled working on a Cadillac that had not any rust on it and said he wished the cars brought to him were like the ones you work on.

You keep getting open and closed loop backwards. Engine goes into closed loop when it's warmed up. Got it right at 27 min in the test drive. Must just be a slip of the tongue....we know you know what you're doing. Love your videos Ray!

Good job! I just did sensor and cat on a ‘06 Pathfinder. It took an hour just to get to the sensor… pulled wheel, fender liner, heat shield, dropped/rat shit strapped exhaust system for the cat. Mustang looks easy.

thankyou Ray,,have a good week,,👍👍

Ahh that’s better, wake up, swig coffee, put on R R and the world is good. You had me all out of sort’s yesterday with the late post. 😂

All right class, the word for today is stoichiometrically. Good job. Nice vid.

I had a 2004 Lightning that was lean . Repair shop couldn't fix it when I got it back after paying for the diagnostic fee. I found a split boot that let air in just before the throttle body that fixed the engine code.

Hooray! Another day with Ray !

It's 130am in the South Pacific, but Great way to start the day.

That nurse appreciates a well maintained automobile. Glad it was a relatively easy fix.

Can tell chevy guy lol 1234 are passenger 5678 driver ford. Anywhere still watching 👀 I likes the channel!

@khakiswag

Жыл бұрын

I caught that too. The Europeans and Honda also number their cylinders like Ford. 1234 passenger 5678 driver.

New means never ever worked,was told this years ago in a class love your stuff

"Tryagnostics" I like it! I've never heard that b4...

How many people were wanting to reach into the screen and wrap some tape on that harness? 14:40 - 14:50

@mrmustangman

Жыл бұрын

that drives me nuts.!!!!!!!!!!!

Smooth diagnostic work. O2 sensors are problems for sure.

I had the same problem with GM LFX V6 P 0171 mostly and rarely 0174 , It was purge valve !

Bit more wizard than Harry Potter with that scan tool Ray.

Something similar happened to my Mercedes e320. After a week of trying to diagnose the car I finally figured out the cause. It was a simple exhaust leak at the manifold and a weld on the cat. I replaced manifold gasket and redid the weld on the cat and problem fixed. It's been over a year now and no codes or faults.

Ray a shot of break clean would cool down those parts in no time! :)

I think you did a great job.

4.6 is a wonderful engine... Not a ton of power, but it's not a slouch. Very reliable.

Excelent job !!! and diagnostic

@4:53 I haven't known a mechanic yet that wouldn't have followed that but with I'm going to charge them for it anyway. Sojourn on Ray.

Well done Ray ,it's gooooooood

Props to you for recording what you do! I've started recording many projects and stopped midway through the project just to get it done!

@mrmustangman

Жыл бұрын

and don't even talk about editing.!!!!! .....forget about it

Beware of Mechanic sign by key rack. I’m glad the sign I sent was placed in such a prominent location. Been looking for it. And I say: HEY! yeah yeaaah, HEY yeah yea I said hey, what's going on?

Need to get you an AES Wave kit and make yourself a set of test lights. You can test wiring integrity all the way to the PCM with test lights.

Nice diagnosis!

Hey Ray, great trouble shooting once again. Not possible without the scan tool. Cheers!

Yes, gloves are the key to not burning your hands. Good job. 👍🏻

I think Ray is really a wizard, He's hiding his pointy hat somewhere

4 Non Blondes again!!! The station he listens to would drive me nuts!

Impressive diagnostics.

Good job 👏 Ray

As a former electronics tech, our running joke was to "power it on and follow the smoke" to the problem.

Nice diagnostic and repair. Your newish HD camera is great, it hardly ever drops focus. Makes us viewers happy.

"New old " spares are a pain , great work!

Good work, Ray. You look busy.

That is the sad part too many faulty new part's, a faulty thermal clutch fan lost my boss a contract because it overheated in the middle of the bush, all the best to you and your loved ones

Another job well done

You need to have Peter to come on as a guess so you can get a reach around! Lol