*PUBLIC SERVICE ANNOUNCEMENT* - If you are watching this video on 11/9/24 or 11/10/24 and you don't fall asleep before the end screen and you see that part II is listed as "Members Only." *DO NOT PANIC* Do not send me nasty emails, don't unsubscribe, don't tell me I am an asshole or a sellout in the comments and *DO NOT CALL MY SHOP* to tell me you can't watch it. The part II will be posted on the 11th at 5pm just like *I ALWAYS DO.* The reason it says members only is because there are some folks that support our TH-cam channel by becoming a "TH-cam Member" and it gives them early access to all videos I put out. Take a breath, slow down, everything is gonna be OK. Nothing has changed. It's still free like it has been for the past 10 years. Thanks for watching! -Eric O. Join here if you want early access - th-cam.com/channels/tAGzm9e_liY7ko1PBhzTHA.htmljoin *The Original diagnosis* - th-cam.com/video/L3NrNQpuISE/w-d-xo.htmlsi=NBxcf-d-_5uS0VG0 *The Real Fix* - th-cam.com/video/OwcnB7UtzhE/w-d-xo.html
Yes, they call and call and call and call. It literally never stops. 98% of the time it is for something so stupid you wouldn't believe me unless you listened to the messages yourself. It will make you lose faith in humanity pretty quick let me tell ya.
@@SouthMainAuto Well I'd be lying if I said I was truly surprised. As for faith in humanity, I lost that way back in the 70's when folks were buying rocks as pets. People actually paid money to some company who put an average garden rock in a box and called it a Pet Rock.
I would say 2 months or 2,000 miles is sufficient to demonstrate that the mechanic installed the parts and did the work properly, and that any further problems should be viewed as "new work", even if the problems are on whatever the mechanic was working on. Three months and 3,000 miles is generous. And, NO warranty on any problems arising from the car being a rust-bucket
After watching your video....I innocently mentioned to the wife how beneficial back probing can be. I didn't even get an oportunity to explain.....no supper for me!! ;-( As usual SMA....Great Video!!
I actually love that you're product testing for Harbor Freight and giving them feedback. If they're actually listening, they have a great opportunity to sell a tool that gets close to your standards at a reasonable price.
It's been a surprise to me that software companies don't have a closer relationship with end users. Eric seems an excellent candidate for that kind of relationship because he sees big volume, is an intelligent and honest observer, and of course posts feedback from a working shop every week. Instead of being afraid of what end users will say, embrace it and make yourself better.
Consider the value Harbor Freight is getting from Eric: An expert who will field test your product and provide a list of bugs and user experience feedback for MONTHS… for $1600 retail (probably $800 or less cost). Amazing deal for HF.
@@michaelgleason4791 There are Autel scanners that cost $2,500, so it’s the same ballpark. But I agree, NOTHING seems worth what we pay for it anymore haha. Yay inflation!
I work for a fleet shop for taxis and we have about 12 dodge grand caravans. Very common for the brain box to stop working. The main issue i believe is the location of the brain box being in the wheel well makes it exposed to weather. Good luck Mr.O love the videos as always. I might have to stop by and say what's up I am only about 40 minutes away from you in buffalo.
That style Chrysler pcm, I have seen plenty of issues with them in other models as well. Prob replaced a dozen in the past 10 years. Other makes and models maybe 1-2 total
I believe he’s got a couple,young guys in there. A friend of mine from high school’s kid works for them. Said it can be hard learning all this, but worth the effort. It’s essentially a master class every day.
@@farmcentralohio exactly… he’s already teaching that’s the reason I scrolled down to comment… im 43 years old and I watch all of his videos even the brake job videos to support this guy . I tell everybody I work with that if you wanna learn how to fix cars correctly watch eric o from south main auto. I think he should run for president one day
I once took my car to a mechanic to get new tires. He said he put four new tires on and charged me $900. Seven years later I went back, furious, because I looked at my tires and there was barely any tread left. He said it was because I'd driven 60,000 miles. The nerve of these mechanics!
15000 miles later after the computer is changed … not a come back!! Chrysler has bad computers in their automobiles…. I have replaced and reprogrammed several in mini vans and trucks… it just sucks that the public automatically blames the mechanic that last done work even though it’s not the mechanics fault… love the videos and I learn from you specially on the wiring checks for problems…
I think the same,replacing the rear O2 would eliminate the doubt and possibility of it shorting anything. And with the PCM,you did what any of us would do,well some of us,saved them a buck and got them a used one. It’s anyones and no one’s guess how long a used pcm would last,or even a new one for that matter. Let’s face it,you did the right thing and made the sound calls for what you did. With todays aftermarket parts I’ve had new aftermarket parts broken upon arrival,fitment issues or flat not work. Here in Tennessee the rust and salt isn’t as bad as up there. But for the life of me I can’t fathom how a manufacturer believes it’s okay to put sensitive electronics in a wheel well or in a nasty area - the asd relay location on the Jeep compass,patriot and the like.
I'm wondering if you have to clear codes before condemning the PCM. In some driver systems, the computer is designed to react to low resistance by disabling the circuit as a self protective feature. It's frustrating and misleading that there is no warning when that happens. I have no idea if that is happening here but it's a thought.
I had a upper 02 intermittent issue I fallow your teaching I tracked the wire after put new in and found a green pus fixed all good thank you sir for the educational guide lines
Old garbage like the van, it’s not always so easy to just replace it. You can pull the threads and have to weld in a new bung. Not the end of the world, BUT
@@mph5896 It would be an easy one if it was replaced in the last year by the dealership. Also mechanics in the salt belt know how not to destroy threads, Eric would be fine doing it.
Good video ! If it's blowing brain boxes - kinda sounds like a short to Ground somewhere - maybe the harness has bare rubbed spot somewhere or the old brain box was used --- so just weak brain boxes --- Maybe put a fuse on the o2 sensor wire ---so if wire shorts to ground it blows the fuse instead of brain boxes. i guess i'll find out in a few days.
How long should a PCM last? Guessing you'll say 13,000 miles. Chasing down why it failed at this point may be worth the effort. Used, new, same type of circuit is suspicious. The owner may not be giving Eric the whole story. Shops in my area are giving a two year warranty on work they do. The downside is they are high end and do not do aftermarket parts. They still screw up.
@@ronaldderooij1774 I didn't build it, I didn't buy it and I didn't break it. You're gonna be really disappointed in my closing statements on part two 😅
As a great man is fond of saying "just because it's new doesn't mean it's any good"! That slightly used new O2 sensor is definitely suspect in my mind.
I have an 85 Ford Bronco. I love watching your videos and seeing your diagnosis process. The wiring on it has been severely molested. It's not as advanced electronically as the cars you work on, but you give so many great tips. Thanks for your videos, and please keep them coming
I heard the scorpins in the backround playing no one like you, can i come by and jam out with you guys? Lol, thanks for the detailed step by step process
Probably wouldnt hurt to amp clamp that circuit and run the engine to be sure your scan tool's special function is actually commanding the heater circuit. Also would be good to visit the o2 heater ground location even though your test light lights up. It's possible other things share that ground and load it when the vehicle is running.
In addition to the sensor, I would also closely inspect the harness because this is a high side driven circuit so an intermittent chaffing to ground harness could damage the driver.
But when malice and ignorance are combined in a customer who feels hard done by, watch out for whining and shouting like you never heard before. Since last week, anyway. Causation and correlation are most people's weakness. They don't understand logic. Yet, somehow, they always seem sly enough to send used parts back to fleabay for a refund -- or used wrong part excuse.
Wow! Eric, I used to live on North Main St in Houston, Texas, so I drove down and looked around for South Main Auto only to find you are 1200 miles away! Haha, thx for the help refining my skills!
Man I just wanted to tell you your the best I have seen on hunting down shorts and things it just amazes me to watch you work and you have a very nice family your wife is so sweet but I bet she has fire when she's angry and your little girl is getting so cute but I just wanted tell you I love watching you work I have learned a lot thanks for the free lessons God bless you and family
Definitely a fiddler and meddler… Especially when the dealer checks something out and they say nothing is wrong, but still charges you 250 bucks. Hey Eric, I appreciate your attention to detail and patience, especially those problems that could come back and bite ya.
Well, when I replaced my last O2 sensor the money light came back on after only a week. I called my nephew, has a shop, and he said a high percentage of the new sensors are bad. I warranted the sensor and I've been good!:) Thanks for all the diagnostic expertise!😊
No, a high percentage of the CHEAP JUNK SENSORS that your nephew is installing are bad. We install over a million a year on our assembly line and get maybe a handful of bad ones a year, and 99% of the time the root cause is a person dropped it, not a part issue. Buy OEM parts, get quality parts. Buy aftermarket crap, get aftermarket crap.
I couldn't agree more about having a new 02 sensor replace the one that's on there, just for reassurance purposes. I have seen brand new 02 sensors go bad myself throwing codes after replacement. Many aftermarket no name brands are junk from the get go: creating inaccurate readings or no data at all to bad heater elements. But I have also seen OEMs go bad too which is hard to explain to a customer who doesn't understand how a brand new part can go bad, but they do. I feel that the quality in OEM parts have taken a backwards step and it makes me worry about having to trust anything that's being produced nowadays. Hope for the best of luck and keep it up on the great videos!
I have seen heaters short to ground when hot. internal failure inside the o2,that will kill the pcm driver almost instantly. so although you have 4 ohms I would also check heater to other wires as well and apply heat to check if you are replacing it anyway. I also think the problem could be the badge on the front of the grille but thats a different story. I also love to print out data when the customer comes in and says ever since. 2 years ago when you fixed my car and the light is back on hahahaha. great videos as always keep them coming,
When in the biz of doing what you do, I would always state in writing on the invoice, that used parts NEVER had a warranty of any kind, unless the seller of the used part were willing to replace it, given the time/mileage on the part. AND that replacement labor of the used part, would be on the customer, if the part seller would not cover it. Electrical parts in most cases are never covered, even when new/oem, due to their exposure to outside influences that can smoke them, which is never the fault of the part itself. You proved yourself that the car was fixed the first time, by changing out the PCM. By no fault of yours that it failed again for a different reason/driver/control section/etc. I usually offered a 50/50 split in costs for these types of re-repairs when I felt the customer was worth keeping ....... but never free when used parts were involved.
Wow, this is a difficult one. You are actually taking a guess on the O2 sensor causing the PCM to die. I have no idea on what you have done what is causing it to fail. I hope it actually solves the problem and does not fail again in another 4 months and 15,000 miles putting you back to square one. Thank you for sharing this with us. I cannot use it myself but perhaps others can in their troubleshooting.
So you alway make comments about how you don't know why people watch your videos LOL! Well yesterday I worked on 08 Highlander from the south. All of the coil harnesses crumbled into nothing. I was able to take the knowledge I learned from your videos and repinned them into a new connector instead of rewiring everything. It save SO MUCH time! Thank you for posting your videos.
More of a electronic tech myself. What if an intermittent short to ground in wiring from control module to O2 sensor? If it was my own vehicle i would investigate the possibility of putting a temp inline fuse around 4 amp to make sure i didn't blow the module again. Fuse blows, keep on lookin. I realize this may not be great as a shop troubleshooting method. Really enjoy your channel.
Should have a polyfuse or current monitoring in the pcm to protect against shorts. Poor design. An inline fuse would prevent damage but would probably cause a return visit.
@@44amanaplanacanalpanama44 Yes, those little surface mount polyfuses are cheap, and then it could have some code added to the code set criteria to set a code for "bank 1 sensor 2 O2 heater circuit current high" or "heater circuit shorted to low source". And then the PCM could disable the heater output until code is cleared.
That's actually a really good idea. At a 40% duty cycle it pulls about 2 and 1/2 amps roughly. I don't know what it takes to kill the driver in the PCM when it does short to ground. I wouldn't really know how to figure that out. Not a big electronics guy. I guess what I could do is measure the current when it's at 100% duty cycle and then just go and amp above that 🤷🏼♂️ That's a really good idea though thanks for sharing.
Need more good guys like you. Around here we have to many lazy mechanics that would have just disconnected the light. Just recently I had a guy stuff a bolt in my AC drain so that I could come back later. And that was at the dealership.
Eric, I think you should warranty your repairs for 12 months/12,000 miles, whichever comes first. That would have avoided this return when the customer is doing either excessive or above average mileage. If they are a tinkerer then that's a further annoyance. I used to use a UV marker to discreetly indicate things I had fitted/adjusted. Sometimes, things weren't where I had left them set!
@@jimrusch22good warranty a mate of mine has a panel shop he supply a concrete guarantee! As soon as the owner drives from there concrete driveway and hits the bitumen road guarantee is over🤣🤣🤣 he does great work😁
It seems interesting to me how test ground and driver voltage to O2 sensor (high side control), and control wire integrity, also liked unplugging it from ECM. It´s new to me believe me. The probe lamp is very old and reliable method to me, but until recently started to understand its usefullness. Thanks Erick you´re a huge learning tree for some folks like me.
Well, Eric O Im becoming a member it's so affordable and the content is great! Im hoping for the live streams to ask an auto-related question. As a viewer no name-calling here. Thank you Eric O!
The rear O2 may indeed be intermittently shorted but the driver may still be good but is being locked out by the computer. Sometimes you have to clear the codes to get it to work even in a function test.
Yeah - Another failure of a similar nature tends to make one very nervous about repeating the same repair! Tough one, Mr. O! I can't imagine what else I'd do at this point besides another PCM and another sensor... We'll see!
Hi Eric, I looked at the caravan in your video, then I looked in my driveway and gad zooks, I have the identical 2010/ 3.3/ auto/ with 177k miles. Please bring more of these vehicles in, I'm sure they will need service. Thanks...
So on the same line. I had a 2002 VW passat 2.8 GLX with a similar issue. The reference voltage from the ECM was 23 - volts. to fix the issue I changed the pin out to the O2 sensor to a free pin in the ECM. That worked for me. Good Luck! AJ
Another great video Mr 'O' . O2 sensors are a pain...I had a Jag 3.0 X-Type AWD and kept blowing Bank 1 Upstream sensors brought new ones (from Jaguar Dealer 3 times) but again after a few months failed again... In the end I brought a second hand one from a scrapyard and that fixed the issue for good...very strange though.
Good video. Have you watched Ivan's latest video, kind of similar problem, but his is a no start, then start, then no start. Very interesting. You and Ivan are the best video's to watch by far.
As a tech of 50+ years, I have heard my share of ever since. Ever since you replaced the tail light bulb in my Ford, the water pump leaks in my Chevy. Or how about it never ran right since you worked on my car. Well how long ago did we work on it. I dunknow,,, four or five years.
Former powersports shop manager here. Generally, sixty days warranty on repairs. Maybe add a few days for good customer service in some situations. Four months is beyond the pale.
Don'cha just love that sence of uncertainty in being a mechanic? We all have diagonosis like this to puzzle our minds ocasionally., Hope everything tuerns out good on this one.
I'd say to you Fix It Eric. If you say it needs it then I believe you. I've been around this electronic stuff to know that I certainly don't know. You are like my tech guy. He'll tell it like it is.
Eric, just in case you ever run into a vehicle you can’t fix here’s what a tech I used to work with in my youth used to tell the customer. Him: “You really need to consider trading the son of a bitch off.” Our service manager caught him telling a customer those exact words. To make a long story short, there are none that are not repairable. Usually, it requires learning a new skill by the tech. Great channel.
You A-HOLE, 😂, JJ, Couldn't resist after reading the PSA, I'll let you off cos of the "ttttttttttttt turbo" meme, although absent from this vid... Love it
![[TH] 2024 PMGC League | Survival Stage วันที่ 1 | PUBG MOBILE Global Championship](http://i.ytimg.com/vi/FVFT-PFwU80/mqdefault.jpg)
*PUBLIC SERVICE ANNOUNCEMENT* - If you are watching this video on 11/9/24 or 11/10/24 and you don't fall asleep before the end screen and you see that part II is listed as "Members Only." *DO NOT PANIC* Do not send me nasty emails, don't unsubscribe, don't tell me I am an asshole or a sellout in the comments and *DO NOT CALL MY SHOP* to tell me you can't watch it. The part II will be posted on the 11th at 5pm just like *I ALWAYS DO.* The reason it says members only is because there are some folks that support our TH-cam channel by becoming a "TH-cam Member" and it gives them early access to all videos I put out. Take a breath, slow down, everything is gonna be OK. Nothing has changed. It's still free like it has been for the past 10 years.
Thanks for watching!
-Eric O.
Join here if you want early access - th-cam.com/channels/tAGzm9e_liY7ko1PBhzTHA.htmljoin
*The Original diagnosis* - th-cam.com/video/L3NrNQpuISE/w-d-xo.htmlsi=NBxcf-d-_5uS0VG0
*The Real Fix* - th-cam.com/video/OwcnB7UtzhE/w-d-xo.html
This comment is another one of those "working with the public" skills in actions hahaha
People call the shop???? It's times like that, that I understand the creation of the flamethrower.
Yes, they call and call and call and call. It literally never stops. 98% of the time it is for something so stupid you wouldn't believe me unless you listened to the messages yourself. It will make you lose faith in humanity pretty quick let me tell ya.
@@SouthMainAuto Well I'd be lying if I said I was truly surprised. As for faith in humanity, I lost that way back in the 70's when folks were buying rocks as pets. People actually paid money to some company who put an average garden rock in a box and called it a Pet Rock.
@@SouthMainAutoas a teacher and former auto tech (lots of time with the public) this is a accurate statement.
14,000 Miles is far longer than any comeback should even be considered.
I would say 2 months or 2,000 miles is sufficient to demonstrate that the mechanic installed the parts and did the work properly, and that any further problems should be viewed as "new work", even if the problems are on whatever the mechanic was working on. Three months and 3,000 miles is generous.
And, NO warranty on any problems arising from the car being a rust-bucket
Eric, Your channel should be mandatory viewing for dealership techs.
And automotive tech students!
Don't forget Ivan too!
Why? They're all leaving.
@@TargaWheels😂Good point
Why? The dealership won’t pay their so called techs to fix anything. They just throw parts at them.
After watching your video....I innocently mentioned to the wife how beneficial back probing can be. I didn't even get an oportunity to explain.....no supper for me!! ;-( As usual SMA....Great Video!!
😂
😂
OMG!! 💀 🤣🤣🤣
Hahaha
Perhaps she's more in tune with gently front probing?
I actually love that you're product testing for Harbor Freight and giving them feedback. If they're actually listening, they have a great opportunity to sell a tool that gets close to your standards at a reasonable price.
It's been a surprise to me that software companies don't have a closer relationship with end users. Eric seems an excellent candidate for that kind of relationship because he sees big volume, is an intelligent and honest observer, and of course posts feedback from a working shop every week. Instead of being afraid of what end users will say, embrace it and make yourself better.
Consider the value Harbor Freight is getting from Eric: An expert who will field test your product and provide a list of bugs and user experience feedback for MONTHS… for $1600 retail (probably $800 or less cost). Amazing deal for HF.
$1600 is definitely not a reasonable price. I'd rather get an Autel (I mean, I already have one, but if I had to choose) or Think Tool Pro.
@@michaelgleason4791 There are Autel scanners that cost $2,500, so it’s the same ballpark. But I agree, NOTHING seems worth what we pay for it anymore haha. Yay inflation!
The only thing that harbor freight will be selling in a year is the Epic line. It'll be nice to see parts made in the US again as tariffs ramp up.
Eric...... you replaced my brake pads 10 years ago. Now I need new ones. I don't expect to pay you as I've already paid..... ! 😅
wE HEAR YA!!😁😁😄😄
I work for a fleet shop for taxis and we have about 12 dodge grand caravans. Very common for the brain box to stop working. The main issue i believe is the location of the brain box being in the wheel well makes it exposed to weather. Good luck Mr.O love the videos as always. I might have to stop by and say what's up I am only about 40 minutes away from you in buffalo.
That style Chrysler pcm, I have seen plenty of issues with them in other models as well. Prob replaced a dozen in the past 10 years. Other makes and models maybe 1-2 total
so, it's just your typical dodgey, crapsler, moparts.
Please Eric, before you retire teach some young willing mechanic wannabes at the local level! We need great mechanics like you.
Pretty sure he already has had a couple of young mechanics go through the shop, plus Hanna and Marie
Yes. He would make a wonderful teacher. OH, he already is...
I believe he’s got a couple,young guys in there. A friend of mine from high school’s kid works for them. Said it can be hard learning all this, but worth the effort. It’s essentially a master class every day.
He's already teaching thousands of people, you're watching it :)
@@farmcentralohio exactly… he’s already teaching that’s the reason I scrolled down to comment… im 43 years old and I watch all of his videos even the brake job videos to support this guy . I tell everybody I work with that if you wanna learn how to fix cars correctly watch eric o from south main auto. I think he should run for president one day
Thank you for spending your time calling Harbor fright (and I assume others) for issues with scan tools. This has to benefit the community greatly!
I love watching these diagnostic videos. It's like a game of clue.
Thanks again, Eric!
I once took my car to a mechanic to get new tires. He said he put four new tires on and charged me $900. Seven years later I went back, furious, because I looked at my tires and there was barely any tread left. He said it was because I'd driven 60,000 miles. The nerve of these mechanics!
Always trying to upsell you!
$5 says this happens at every Costco location about once a week.
Furious because they had a 70,000 mile rating.😂😂😂
Haven't given them any business since the tires were done.
Your public service message gave me a chuckle, regardless of how sad it was you had to give it.
About 15% of the population is completely brain dead.
Does this mean we get to take a field trip to Willbert's? Always love the field trips.
Not a sponsor
@RandyLaheySunnyvale lol
15000 miles later after the computer is changed … not a come back!! Chrysler has bad computers in their automobiles…. I have replaced and reprogrammed several in mini vans and trucks… it just sucks that the public automatically blames the mechanic that last done work even though it’s not the mechanics fault… love the videos and I learn from you specially on the wiring checks for problems…
That car has livery plates on it. Bet that thing makes a lot of trips to Buffalo airport.
About 5 years back my local independent repair shop fixed a leaking tire and now the frame is rusting out! 😠
I think the same,replacing the rear O2 would eliminate the doubt and possibility of it shorting anything. And with the PCM,you did what any of us would do,well some of us,saved them a buck and got them a used one. It’s anyones and no one’s guess how long a used pcm would last,or even a new one for that matter. Let’s face it,you did the right thing and made the sound calls for what you did. With todays aftermarket parts I’ve had new aftermarket parts broken upon arrival,fitment issues or flat not work. Here in Tennessee the rust and salt isn’t as bad as up there. But for the life of me I can’t fathom how a manufacturer believes it’s okay to put sensitive electronics in a wheel well or in a nasty area - the asd relay location on the Jeep compass,patriot and the like.
I'm wondering if you have to clear codes before condemning the PCM. In some driver systems, the computer is designed to react to low resistance by disabling the circuit as a self protective feature. It's frustrating and misleading that there is no warning when that happens. I have no idea if that is happening here but it's a thought.
Great point, that is something to watch out for.
Yes that is true. PCM's often shut down circuits that coincide with the code. Very common on modern cars
Your the Best Eric. If the customer can't trust you they can't trust anybody. Stay Safe.
I learn something every time. Thank you Eric!
I had a upper 02 intermittent issue I fallow your teaching I tracked the wire after put new in and found a green pus fixed all good thank you sir for the educational guide lines
Green pus???
I agree with BTC, "an intermittent chaffing to ground harness could damage the driver".
Stay tuned 😏
@@SouthMainAuto I smell a money shot coming!!
How could that be ? The driver sits in the cab .
This is a cab 🚕
O2 sensors are cheaper than PCMs! I, too, would replace that o2 sensor just to be safe! Great video!
and also a lot less work. Absolutely no reason not to change it just to be safe.
Old garbage like the van, it’s not always so easy to just replace it. You can pull the threads and have to weld in a new bung. Not the end of the world, BUT
@@mph5896 It would be an easy one if it was replaced in the last year by the dealership. Also mechanics in the salt belt know how not to destroy threads, Eric would be fine doing it.
“Ever since you” and “it never did that before” If I had nickel for every time I heard that over 40 years.
Eric, Im 65, retired from the automotive repair business of nearly 40 years. Apologize for Nothing. You rock, Sir
My cat disapproves of that throttle body! 😀
Thanks for the video Eric. I am looking forward to part two.
Love the detective work, Eric. Thanks as always.
Good video ! If it's blowing brain boxes - kinda sounds like a short to Ground somewhere - maybe the harness has bare rubbed spot somewhere or the old brain box was used --- so just weak brain boxes --- Maybe put a fuse on the o2 sensor wire ---so if wire shorts to ground it blows the fuse instead of brain boxes.
i guess i'll find out in a few days.
or, just your typical crapsler, dodgey, (bum)rammed vehicles...
Another great diagnostic video, Eric! 14,000 miles since the repair, don’t count as a comeback as far as you being at fault.
It depends on the guarantee he gives. If it is like Pine Hollow Auto diagnostics a year guarantee, Eric must eat it, his fault or not.
Especially, if the owner is messing around with it!
Maybe not, but happy customers keep coming back.
How long should a PCM last? Guessing you'll say 13,000 miles. Chasing down why it failed at this point may be worth the effort. Used, new, same type of circuit is suspicious. The owner may not be giving Eric the whole story. Shops in my area are giving a two year warranty on work they do. The downside is they are high end and do not do aftermarket parts. They still screw up.
@@ronaldderooij1774 I didn't build it, I didn't buy it and I didn't break it. You're gonna be really disappointed in my closing statements on part two 😅
Been learning so much from your channel MR O! Thanks for your time and effort 👍
As a great man is fond of saying "just because it's new doesn't mean it's any good"! That slightly used new O2 sensor is definitely suspect in my mind.
Josh is rocking to the Scorpions in the background!! "There's No one like YOU!!"
That really sucks! I’m sorry this happened.
I have an 85 Ford Bronco. I love watching your videos and seeing your diagnosis process. The wiring on it has been severely molested. It's not as advanced electronically as the cars you work on, but you give so many great tips. Thanks for your videos, and please keep them coming
Loving that zip-tie bumper repair. Classic!
I heard the scorpins in the backround playing no one like you, can i come by and jam out with you guys? Lol, thanks for the detailed step by step process
You might want to check the pin drag on the plug to the computer to see if it could be loose. Ivan is always doing that. Sometimes a fix.
A great video and a great mechanic that's well equipped. Thank you.
Great diagnostic video. Very helpful. Next video another trip to Wilbur's please......
Thanks for the great O2 sensor test procedure tip! I hope you and the family have a great weekend! God bless
Probably wouldnt hurt to amp clamp that circuit and run the engine to be sure your scan tool's special function is actually commanding the heater circuit. Also would be good to visit the o2 heater ground location even though your test light lights up. It's possible other things share that ground and load it when the vehicle is running.
Stay tuned 😏
In addition to the sensor, I would also closely inspect the harness because this is a high side driven circuit so an intermittent chaffing to ground harness could damage the driver.
Thanks for your videos, I love watching them!!
When dealing with the general public, never attribute to malice that which can be explained by ignorance.
But when malice and ignorance are combined in a customer who feels hard done by, watch out for whining and shouting like you never heard before. Since last week, anyway. Causation and correlation are most people's weakness. They don't understand logic. Yet, somehow, they always seem sly enough to send used parts back to fleabay for a refund -- or used wrong part excuse.
Wow! Eric, I used to live on North Main St in Houston, Texas, so I drove down and looked around for South Main Auto only to find you are 1200 miles away! Haha, thx for the help refining my skills!
Man I just wanted to tell you your the best I have seen on hunting down shorts and things it just amazes me to watch you work and you have a very nice family your wife is so sweet but I bet she has fire when she's angry and your little girl is getting so cute but I just wanted tell you I love watching you work I have learned a lot thanks for the free lessons God bless you and family
Definitely a fiddler and meddler… Especially when the dealer checks something out and they say nothing is wrong, but still charges you 250 bucks.
Hey Eric, I appreciate your attention to detail and patience, especially those problems that could come back and bite ya.
Well, when I replaced my last O2 sensor the money light came back on after only a week. I called my nephew, has a shop, and he said a high percentage of the new sensors are bad. I warranted the sensor and I've been good!:) Thanks for all the diagnostic expertise!😊
A high percentage of new parts are bad.
No, a high percentage of the CHEAP JUNK SENSORS that your nephew is installing are bad. We install over a million a year on our assembly line and get maybe a handful of bad ones a year, and 99% of the time the root cause is a person dropped it, not a part issue.
Buy OEM parts, get quality parts. Buy aftermarket crap, get aftermarket crap.
I couldn't agree more about having a new 02 sensor replace the one that's on there, just for reassurance purposes. I have seen brand new 02 sensors go bad myself throwing codes after replacement. Many aftermarket no name brands are junk from the get go: creating inaccurate readings or no data at all to bad heater elements. But I have also seen OEMs go bad too which is hard to explain to a customer who doesn't understand how a brand new part can go bad, but they do.
I feel that the quality in OEM parts have taken a backwards step and it makes me worry about having to trust anything that's being produced nowadays. Hope for the best of luck and keep it up on the great videos!
I have seen heaters short to ground when hot. internal failure inside the o2,that will kill the pcm driver almost instantly. so although you have 4 ohms I would also check heater to other wires as well and apply heat to check if you are replacing it anyway. I also think the problem could be the badge on the front of the grille but thats a different story. I also love to print out data when the customer comes in and says ever since. 2 years ago when you fixed my car and the light is back on hahahaha. great videos as always keep them coming,
Not too worry Brother We are still in your Corner!
as the family mechanic i dealt with this on our old 03' caravan as well same exact symptoms
When in the biz of doing what you do, I would always state in writing on the invoice, that used parts NEVER had a warranty of any kind, unless the seller of the used part were willing to replace it, given the time/mileage on the part. AND that replacement labor of the used part, would be on the customer, if the part seller would not cover it. Electrical parts in most cases are never covered, even when new/oem, due to their exposure to outside influences that can smoke them, which is never the fault of the part itself. You proved yourself that the car was fixed the first time, by changing out the PCM. By no fault of yours that it failed again for a different reason/driver/control section/etc. I usually offered a 50/50 split in costs for these types of re-repairs when I felt the customer was worth keeping ....... but never free when used parts were involved.
Wow, this is a difficult one. You are actually taking a guess on the O2 sensor causing the PCM to die. I have no idea on what you have done what is causing it to fail. I hope it actually solves the problem and does not fail again in another 4 months and 15,000 miles putting you back to square one. Thank you for sharing this with us. I cannot use it myself but perhaps others can in their troubleshooting.
So you alway make comments about how you don't know why people watch your videos LOL!
Well yesterday I worked on 08 Highlander from the south. All of the coil harnesses crumbled into nothing. I was able to take the knowledge I learned from your videos and repinned them into a new connector instead of rewiring everything. It save SO MUCH time!
Thank you for posting your videos.
More of a electronic tech myself. What if an intermittent short to ground in wiring from control module to O2 sensor? If it was my own vehicle i would investigate the possibility of putting a temp inline fuse around 4 amp to make sure i didn't blow the module again. Fuse blows, keep on lookin. I realize this may not be great as a shop troubleshooting method. Really enjoy your channel.
Should have a polyfuse or current monitoring in the pcm to protect against shorts. Poor design. An inline fuse would prevent damage but would probably cause a return visit.
@@44amanaplanacanalpanama44 Yes, those little surface mount polyfuses are cheap, and then it could have some code added to the code set criteria to set a code for "bank 1 sensor 2 O2 heater circuit current high" or "heater circuit shorted to low source". And then the PCM could disable the heater output until code is cleared.
That's actually a really good idea. At a 40% duty cycle it pulls about 2 and 1/2 amps roughly. I don't know what it takes to kill the driver in the PCM when it does short to ground. I wouldn't really know how to figure that out. Not a big electronics guy. I guess what I could do is measure the current when it's at 100% duty cycle and then just go and amp above that 🤷🏼♂️ That's a really good idea though thanks for sharing.
@@3dzee153 or just run new wire
I mean, it's a DODGE, what did we expect :P
This is one Eric should have dodged.
correct, a 14yo caravan with 190,000+ miles, something breaks on it everyday. I had one. It throws codes faster than you can fix them.
@@orbitalair2103pos!!!! NEVER buy Chrysler products!!!
Nope. No thank you. This is one instance where ONLY you can do it!lol! Great video, always frustrating to see a used part go belly up!
Need more good guys like you. Around here we have to many lazy mechanics that would have just disconnected the light. Just recently I had a guy stuff a bolt in my AC drain so that I could come back later. And that was at the dealership.
Eric, I think you should warranty your repairs for 12 months/12,000 miles, whichever comes first. That would have avoided this return when the customer is doing either excessive or above average mileage. If they are a tinkerer then that's a further annoyance. I used to use a UV marker to discreetly indicate things I had fitted/adjusted. Sometimes, things weren't where I had left them set!
Uv marker is very smart
I'm thinking the video title is humor. There's no warranty on used parts for more than 30 days, if any, from most repair shops.
Used parts? 50/50 warrantee. That’s 50 feet or 50 seconds, which ever comes first.
@pj4534 Ah, didn't think of that.
@@jimrusch22good warranty a mate of mine has a panel shop he supply a concrete guarantee! As soon as the owner drives from there concrete driveway and hits the bitumen road guarantee is over🤣🤣🤣 he does great work😁
It seems interesting to me how test ground and driver voltage to O2 sensor (high side control), and control wire integrity, also liked unplugging it from ECM. It´s new to me believe me. The probe lamp is very old and reliable method to me, but until recently started to understand its usefullness. Thanks Erick you´re a huge learning tree for some folks like me.
Well, Eric O Im becoming a member it's so affordable and the content is great! Im hoping for the live streams to ask an auto-related question. As a viewer no name-calling here. Thank you Eric O!
The rear O2 may indeed be intermittently shorted but the driver may still be good but is being locked out by the computer. Sometimes you have to clear the codes to get it to work even in a function test.
Stay tuned 😉
@@SouthMainAuto Well, I was close! 😅
Got to be that new York air in the tires !😮
Yeah - Another failure of a similar nature tends to make one very nervous about repeating the same repair! Tough one, Mr. O! I can't imagine what else I'd do at this point besides another PCM and another sensor... We'll see!
Thank you for another Great video. Cheers
GAWD DANG DEM
DODGES AND THEIR FAULTY PCM’S. I have replaced 3 of them in my hoopie Caravan too. 😂
Very good vid, thanks for taking us along.
Thanks Eric!
Hi Eric, I looked at the caravan in your video, then I looked in my driveway and gad zooks, I have the identical 2010/ 3.3/ auto/ with 177k miles.
Please bring more of these vehicles in, I'm sure they will need service. Thanks...
Son of a mother lover is right. Im working on o2 prob right now. Thanks for this video. Good info
So on the same line. I had a 2002 VW passat 2.8 GLX with a similar issue. The reference voltage from the ECM was 23 - volts. to fix the issue I changed the pin out to the O2 sensor to a free pin in the ECM. That worked for me. Good Luck! AJ
Well, it appears to be bad luck. Looking forward to Pt. 2. Take care!
Another great video Mr 'O' . O2 sensors are a pain...I had a Jag 3.0 X-Type AWD and kept blowing Bank 1 Upstream sensors brought new ones (from Jaguar Dealer 3 times) but again after a few months failed again... In the end I brought a second hand one from a scrapyard and that fixed the issue for good...very strange though.
Thanks bud I always have liked your Chanel it's a good source of informative info
Good video. Have you watched Ivan's latest video, kind of similar problem, but his is a no start, then start, then no start. Very interesting. You and Ivan are the best video's to watch by far.
Something blew the pcm. Dont see short to ground in wiring. I would definitely replace o2 sensor for precaution .
I would swap out the O2 sensor and the pcm. There might be a possibility the O2 sensor shorted but not showing now. Thanks for the video
Interesting I’ll wait to see the outcome
Great stuff. I agree with your concern for the oxygen sensor, seems like safe insurance.
As a tech of 50+ years, I have heard my share of ever since. Ever since you replaced the tail light bulb in my Ford, the water pump leaks in my Chevy. Or how about it never ran right since you worked on my car. Well how long ago did we work on it. I dunknow,,, four or five years.
Former powersports shop manager here. Generally, sixty days warranty on repairs. Maybe add a few days for good customer service in some situations. Four months is beyond the pale.
Agree. Replace O2 sensor. Then you start fresh with diagnosis.
doing the hoky poky in the bag is brilliant.
Love it. In my facility, we called it "The Sinceya Disease". Since ya worked on it,,,,,,,,,,😂😂😂😂
Thanks again for another very informative video.
Don'cha just love that sence of uncertainty in being a mechanic? We all have diagonosis like this to puzzle our minds ocasionally., Hope everything tuerns out good on this one.
The Super Trooper "enhance" never gets old..
I knew it needed an ECM because on the previous video you said you put one in, while talking about the Harbor Frought scanner!
You are a wealth of knowledge sir.
You made good decisions Id do they same like you say when it heats up it might short out brain from some internal failure when O2 sensor goes scorch !
It should be part of the Final exam for every auto technician before getting certified.
I'd say to you Fix It Eric. If you say it needs it then I believe you. I've been around this electronic stuff to know that I certainly don't know. You are like my tech guy. He'll tell it like it is.
Just noticed the thumbnail and had to comment what happened mr. O you don’t ever miss stuff
Eric and Ivan are not such great techs, but also great teachers.
Eric, just in case you ever run into a vehicle you can’t fix here’s what a tech I used to work with in my youth used to tell the customer. Him: “You really need to consider trading the son of a bitch off.” Our service manager caught him telling a customer those exact words. To make a long story short, there are none that are not repairable. Usually, it requires learning a new skill by the tech. Great channel.
You A-HOLE, 😂, JJ, Couldn't resist after reading the PSA, I'll let you off cos of the "ttttttttttttt turbo" meme, although absent from this vid... Love it
Saludos Eric 👍
Everyone I know including me (10 of us), who had a caravan -the transmission went out. She's lucky it's not in limp mode.
that will be next months video.....
Thanks for the video Eric.
I would most definitely go with what you recommend