5 Worst Cars: th-cam.com/video/LnvHdaBI8eM/w-d-xo.html ⬇️Scotty’s Top DIY Tools: 1. Bluetooth Scan Tool: amzn.to/2nfvmaD 2. Mid-Grade Scan Tool: amzn.to/33dKI0k 3. My Fancy (Originally $5,000) Professional Scan Tool: amzn.to/31khBXC 4. Cheap Scan Tool: amzn.to/2D8Tvae 5. Basic Mechanic Tool Set: amzn.to/2tEr6Ce 6. Professional Socket Set: amzn.to/2Bzmccg 7. Ratcheting Wrench Set: amzn.to/2BQjj8A 8. No Charging Required Car Jump Starter: amzn.to/2CthnUU 9. Battery Pack Car Jump Starter: amzn.to/2nrc6qR ⬇️ Things used in this video: 1. Common Sense 2. 4k Camera: amzn.to/2HkjavH 3. Camera Microphone: amzn.to/2Evn167 4. Camera Tripod: amzn.to/2Jwog8S 5. My computer for editing / uploading: amzn.to/2uUZ3lo 🛠Check out the tools I use and highly recommend ► goo.gl/rwYt2y 🔥Scotty Shirts and Merch ► goo.gl/pTAeca Subscribe and hit the notification bell! ► goo.gl/CFismN Scotty on Social: Facebook ► facebook.com/scottymechanic/ Instagram ► instagram.com/scotty_the_mechanic/ Twitter ► twitter.com/Scottymechanic?lang=en
Cat-Lick-Converter. Cats don't mess with air tools, compressors and carbon their electricians. Just drag a piece of wire around and they will have it striped in no time.
Scotty explain me this. I have a 98 Corolla, 1.6 4A-FE. Leaks oil into cylinder 2. In the emission test it gets perfect readings for everything at first and the next second the hydro carbons jump up 4x the allowed limit. Soon after they go down. And back up again and then down again. New plugs, new-ish wires. Lambda is fine always. Its a hot engine. Does that...
Yes, and right to learn it wont through a PO430. The trick is to have a car old enough that ig doesn't check the cat efficiency, then your cat will never be bellow efficency threshold. Good
Have faith, Steve. Scotty will always find a way to work a reference to his Celica into whatever he's talking about - and it always make sense. Myself, I've about decided that he and his wife are secretly practicing witchcraft. Haven't you noticed that you can never quire get a good look at her? I bet some of us have never seen her at all! Anyway, all of this stuff is caused by one thing. Magic. It's all just simple witchcraft.
I've been watching Scotty for some time now. But I wish you guys could've seen the way my 19 year old lit up when he wanted to tell me about this great guy who he's taken a liking to because he's doing some research to buy his first car. Thanks Scotty 😊
BaiAnNa2014 Twitter my cat understands every word I say! I swear... I tell her to get me something ... She brings it to me! I mention her name, no matter where she is, she comes trotting over to me! They are super smart animals!😻😻😻🐈🐈🐈
Dear Scotty I wanted to let you know, Almost anytime I have a question or could use advice I find your videos extremely helpful! keep up the great work! Always learn something new from you!
Scotty, you remember the catalytic converter refill kits GM used to sell. Basically you knocked a metal plug out of the converter. You shook all of the stuff that was in there out. Then you replaced the screen and refilled the converter with the GM supplied material and replaced the metal plug and then re installed the converter and out the door. I worked for a GM garage in the late 70's and early 80's. Not sure if they made new converters back then but that is how that garage fixed the problem. I never saw that in any other garage.
I remember it, because I did it. Hardest part was getting the old "beads" out. That air operated tool to get them out was a joke; had to shake some of them out. You know, grunt, shake, grunt shake.
I did the lacquer thinner and the codes cleared up. Only run top tier citco gas and never have had any more cat problems. My 2002 4runner has over 300000 miles and it is awesome. Thanks Scotty you rule.
Yup and he will also bring the girl from my cousin Vinny to court to help u and bring her up the stand😀👏😀👏👏😀👏😀cause her father was a mechanic her brother's are mechanics everyone at the pizza place is a mechanic😀👏NY style
I had 4 cats on my Ford 5.0! They clogged after a seafoam treatment. (Like ashes over the honeycomb ceramic catalyst unit.) You mentioned soap and water. I HIGHLY recommend laundry detergent and water soaking overnight than rinsed out with a hose. I removed the cats and put racquetballs in the ends to seal it. After it was done i never knew that engine put out that much power.
Have you tried removing all 4? I'm thinking of doing that myself. I keep hearing people saying "Just remove it they don't really work until 2009" and I got a 2002 😑
@@tedyBear59 I'm taking it they are there just to hold the soapy water in while he soaked it overnight then removed before rinsing out and then placing back on vehicle.
It honestly makes sense that regular dish soap would work best to clean off burnt oil and other crud from a catalytic converter. For years volunteers have been using Dawn soap in particular to clean oil off of animals that were caught in oil spills and it works like magic. Really cool channel!
Have you ever seen how an animal covered in oil reacts to a volunteer attempting to clean it with carburetor cleaner? I haven’t, but I suspect the animal would not be enjoying itself.
I remember back in the 70's when they started using cat converters, the first thing you did when you got a car with them was to take it to a muffler shop and get them taken out. The cars ran so much better without them. Of course that was in the years between when the gov required emissions equipment on new cars and before they started yearly emissions testing in some states.
I always remove the first cat from my turbo cars and fit a straight through pipe which gives around an extra 15 bph. The first cat is not required for mot test in the UK. A re-map may be required to get rid of the engine management light though
Yeah those old 70's cats were horrible for efficiency. They reduced pollution a bit but horribly inefficient. In such cases I'd suggest replacement with a modern high flow converter, as they're MUCH more efficient and result in almost to no MPG drop
@@cpufreak101 Screw that. Take the cat off, punch out the ceramic honeycomb with a steel rod, put the cat back on, and no more cat problems. Won't work in areas where your car must pass an emissions inspection, but not every area has emission inspections.
@@cpufreak101 What I know is that the stupid environmental laws decreed by a runaway federal bureaucracy called the EPA has cost us billions of dollars in unnecessary repair costs and poor-running engines. Do I give a rat's rear-end about those stupid laws? No, I don't. I also know that in most areas of the country where there is no annual or semi-annual emissions testing, there's not a snowball's chance in hell you'll get caught gutting a bad cat and reinstalling it. However, if you don't mind paying through the nose for unnecessary and expensive car repairs, be my guest.
@@daveb40361 all I can say is do you not like breathable air? Go to smog filled China or Indonesia if you want an example of a world without the EPA. Good luck breathing.
WOAH! I did not know that silicone ruined cats and O2 sensors. Thank you for enlightening me. I pledge to never get a can of silicone anything anywhere near an intake, cross my heart and swear to God. Thanks, Scotty.
I remember visiting the motherland for the 1st time Manila, Philippines. One thing I remember was that a lot of 2nd hand commercial vehicles from mainland asia congested the streets. Many of these vehicles had the catalytic converters chopped off!! The smog was horrendous and I always had a metallic taste in my mouth
If you only have one o2 sensor before the cat, and its emissions are done using the obd2 port. You can break the material in the cat, put it back on and still pass emissions. You can also do this on most cars(obd1) with smog pumps because they almost always only need the air pump. If anyone asks I didnt tell you this and I've never done this lol
Overfilling your gas tank can cause all sorts of problems and codes. I had a code for the cat converter for the longest time and when I stopped Overfilling my tank the codes went away eventually.
Never had an issue other than it fucked up my fuel gauge. The gauge still works but the empty is on the 1/2 tanks it’s like it just shifted. Fuel light and everything works
My son was 90+ miles from home when the cat. clogged up. All the way home he could only drive 30-35 mph. Normally he drives WAY too fast, this was the first time he saw EVERYTHING along the highway! If it ever happens again, I'll give the ideas you gave and hopefully it will save him some money. Thanks Scotty!
I would like to see Scotty do his own budget minded builds. Off road rig, hot rod, finding, buying and fixing a vehicle for daily driving, fun weekend toy, etc. Would be interesting to see his thought process and how he works.
I have a Made in the USA 2006 Cadillac STS still passing E-Check, with original exhaust & catalytic converter...So much for your Celica Scotty... 21MPG & Room enough to carry the family...we are comfortable to...
LOL I still have a couple of those "TEST PIPES" they used to sell when they started using converters.Of course that didn't last long when they noticed we didn't swap them back I might even have my old "Bypassing emission controls" book sold by JC Whitney !😀😀
Get this... While living in California back in the 80's, I had a 6 cyl Ford Granada. At over 150K miles, it would eventually never go over 35 MPH. My 'mechanic' friend removed the honeycomb from inside the cat converter. It ran great and never failed a SMOG inspection.
I tried the lacquer thinner then wound up with an EVAP leak. Be careful with what model you have, where the fuel pump is, etc. I later discovered the port for one of my O2 sensors had broken off. So, also, try to diagnose before just throwing things around.
Thanks Man, I had an air leaks at the throttle body baffle, a bad coil and a fouled sparkplug that caused problems and got me a p0420, p0507, p0068 and p0496 error. Replaced the clamp, replaced a faulty coil and new spark plugs and wire all around. All the codes went away but the 0420. All the O2 sensors tested fine. I trued catclean or something like that and tried to seafoam it to no joy. I used a IR temp sensor on the cats and the driver side was close to 150 degree higher than the passenger side. I figured nothing to lose now so did the lacquer thinner in the tank and after an hour of driving the check engine and code p420 is no longer active. And the truck is driving a lot better. Thanks you saved me close to $900 for a new ypipe with cats!
I always see people commenting on scottie arm movements while he talks but it actually makes a lot of sense based off of his career path. Normally people who use arm signals are tactile learners meaning they learn by doing things so when they try to communicate with people they use the hand signals because it's how they're brains wired so automatically if something easier for you as a person you assume it's easier for everybody subconsciously. Actually also makes sense as to why he's so successful. If you end up in a career you're mentally/physically tuned and gear to do you're going to excel in it.
Catalytic Converters don't make the car run bad, unless it's clogged. Also, keep in mind, if your vehicle is 1996+, it will turn on the check engine light, due to downstream o2 sensors required in OBD 2 systems. BTW, I actually pounded out the guts on a clogged up converter, (it went back in the car, as a hollow body) just to get a beater car going again so I could give it to a relative who was in need of cheap transportation.
Very nice video Most important thing i learned is that silicone fumes or burnt engine oil can definitely clogg or damage the catalytic convertor, very good to know. Thank you scotty.
bought a VW Passat Variant last year, build in 98. The Catalytic converter was still good but the rest of the assembly was rusted! The main reason i had to buy a new one was a broken flex piece (these mesh tubes to negate rattling). The Outer wall of the flex piece was ripped apart so my car was loud af
Robert Garcia ,I’m not a mechanic.dont get what you’re saying.been working on 1996 4 runner .im starting to wonder if I’m going restarted! Are you saying lacquer thinner is lacquer thinner no matter where you get it? If it’s clogged can’t you just break that honeycomb stuff up and put it back on for a straight flow?
How often would you recommend cleaning the catalytic converter with the lacquer thinner? Additionally, how much should it be driven until the next gas tank fillup? Got a 1996 camry with about 250,000 miles.
@@wbwills2 Yup that's exactly what Scotty means. It's a joke. Laquer thinner is the same, no matter where you get it and is not special to any one field. You can find it anywhere including your local hardware store. As for you answer on breaking up the honeycomb inside your cat. conv., Yes you can and you will have better flow since there will be no restriction, but you will set a Check Engine Light on because the o2 sensor will pick it up immediately, not to mention your vehicle would run less efficiently resulting in less mpg. Not to mention failed smog issues.
I've been behind many an old stinker of a car and I totally agree on that. I can't imagine how bad rush hour must have smelled before they added them, doubly so for your health.
well the vacuum leak thing isnt likely because the ecu compares the front o2 sensor to the rear o2 sensor. if the front 02 sensor is lean then the rear o2 sensor will also be lean and the ecu will normally know this and throw a different code. there are exceptions though, but for the most part the bad cat code is just that. But what caused the cat to go bad in the first place. If its plugged then you need to find out why or your new one will fail too.
A comedian once referred to it as a Cataclysmic Perverter...and since then, this has always been that. Thanks for the detailed info on the Cataclysmic Perverter!
I nothing about cars, and still subscribed! I wish Scotty was my mechanic. I imagined myself in this video having a bad cat and him explaining it all to me. The best! Super informative.
@@evilal20 lol what kind of vehicle is it on? Think those sound good put on some flowmaster super 44 mufflers or if u want more of a note throw on some flowmaster super 10's
lacq thinner worked for me! On another project im trying cataclean. Also consider: I drilled a small hole in the exhaust before the cat and sprayed carb cleaner etc in w a straw w the engine running!
I probably shouldn’t admit this when I worked as a lube tech in a shop that would do major jobs on cars we had a few customers that had cars that flat out wouldn’t run due to the cat. A few just flat out didn’t have the money to replace the cat so we took a drill bit to the front side and sent them on their way
This man IS FULL OF KNOWLEDGE. I WOYLD LOJE TO HAVE A FULL TIME, JOB WELL PAYING JOB TO TURN I TO A CARRER AND WORK AND LEARN FROM YOU SCOTTY. WE NEED GOOD PEOPLE IN MY AREA!
this man induces me to choose to smile a lot as I watch his videos. He is a healer. I do feel sorry for people who live in places where vehicles have to pass tests. Why dont they just still a bloody big cat on the last pipe at the oil refinery?
Diesel or gasoline is not the same thing as exaust fumes. Some of the nocive gases are a byproduct if useful substances burning after they have done their job.
I've done the soapy water method with a little twist. I sprayed it good with oven cleaner, let it set for 15 minutes, placed it in the soapy water. 24hrs later returned to the bucket and it was black with crud at the bottom..and the Cat looked brand new! Rinsed it good, Put it on my car, code went away, and it sounds better..
cliffdaddy126 he loves taking shots at other people but I’m willing to bet my last dollar that someone says something about him, his age will show and he’ll have a heart attack and break his hip when he falls
Remember my great uncle showing me how to fix my cat on my old 80s model. Step 1; remove the cat. Step 2; jam a crow bar through the cat. Step 3; shack out all the debris. Step 4; reinstall the cat. Old truck ran like new again.
In the UK, we have garages which specialise in tyres, brakes and exhausts, one of their favourite tricks is to jam a long object down into the catalytic converter to break it, and then tell you it needs a new one, "because it's got a rattle".
Loved the video Scotty. Subscribed bc this is one of the most simply described, easily understood video on something that has annoyed and baffled me for a long time. CCs suck BIG-TIME! I hate them too. So all-together thank you for the tip on how to clean those suckers out. 😁👍
4:07 The AC Tech in me cannot look past the condensing unit and how much vegetation is surrounding it. Trim those plants Scotty if you want your AC to work efficiently. Ok, i'll stop, lol
@@eligavia Weeds grow up around the A/C and choke it out. Be careful weedeating around the power lines. It's better to spray that area or clear it by hand. The customer will get very mad if they don't have A/C.
Scotty I do exhaust for a living. If you have ANY AIR LEAKS in your welds it will set light off also. I put aftermarket cats on infinity all the time. You must put and match GVW Or vehicle pounds. And don't buy ones off scamazon.
I've heard of people removing the catalytic converter, using a screwdriver to break up and remove the honeycomb insides, and then bolting them back in place. That way it works like a straight pipe, but looks like a cat. Not recommending it, but that's just what I've heard.
A lot of people try to uae them as this giganric bandaid fof some other underlying issue qhen trying to pass smog. The catalytic converter uses a principle where precious metals like platinum actually react and glow red hot when exposed to unburnt fuel, so it naturally cleans up the tailpipe
We have a 2005 Mini S, runs great, replaced alternator, I do the brake pad replacement. 112K miles...... Just bought a 2014 twin turbo Mini....12K miles....super car.
Scotty, A first time to comment pretty much on any of the videos I watch. And I believe you and one other are the only ones that I follow. The other is my nephew, Luke Levenson, who is a musician and a really good one. In the same breath, I would like to say that you are, as well. I have Herrald with cars, my whole life. I have restored and rebuilt cars and I’ve loved them since I was probably seven years. I absorb information on regards, cars, old and new. I have learned more from you than pretty much anybody, including my trade school instructor. If I could, I would pay money to come and spend a couple of weeks with you and learn all your tricks how much money as I can I really appreciate you sharing with all of us.
Lol the new STIs now only have one catalytic converter as well from factory, the design of putting a cat before the turbo was a bad design which has been eliminated
You could just replace it with a normal straight pipe. A catalytic converter over here in New Zealand cost about over $200 second hand. So could make a couple extra bucks and make your car sound a little more grunty 😁
That’s federally illegal in most states in America, he stated so in the video and it’s a pretty well known authoritarian fact that most Americans know, we can’t do anything fun or that saves us money “legally”, Lol.
I knew a guy who stole cat converters out of mall parking lots with a cordless saws all. Imagine the surprise of the driver when they came out and fired the car up, Haha. Thankfully, he served time for that and other issues...
on some vehicles when the catalyst breaks down and one good backfire can blow the muffler open as i seen it on a minivan and pickup truck. as the converter when functioning correctly can prevent the unburnt gas from reaching the muffler and igniting happens when the engine coasts from a rev mainly or highly modified vehicles. as its illegal to remove them as the fine is very hefty in California.
I had a Plymouth Volare station wagon w/slant 6 once. It was stock with a 4v Carter 4BBL., and a manual 4spd overdrive floor shift! Cool car got 25mpg hwy.! Discovered the cat was restricted from actually having melted the ceramic cat core mostly shut (imagine how hot THAT had to have gotten!). Disconnected the rear exhaust from it, reamed it out with a length of rebar and a hammer, started the car for a moment (to blow the chunks out..). Reattached the exhaust and "end of problem" (of course, I lived in a place that had NO vehicle inspections.....). Ran much better and thriftier after that fix. Still looked all stock and complete.
I had been getting a P0420 on my 2006 Prius with 250 K miles. It was burning about a quart of oil every 1500 miles. The code would return every 100-150 miles of mostly highway driving. After three times, I added a gallon of the lacquer thinner from Walmart, then drove 400 highway miles in a single day for vacation. I also replaced the old and weak 12V battery. Going on 1100 miles with no issues. Try the lacquer thinner. For $15 it might just be the cure.
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Your cat strolling into the frame at 3.33 was serendipitous.
Scotty, would you recommend running lacquer thinner through once a year or so on your car to extend the life of the catalytic converter?
Can we do mechanic friday instead, so you can give one away by placing a non offensive comment hahaha
Cat-Lick-Converter. Cats don't mess with air tools, compressors and carbon their electricians. Just drag a piece of wire around and they will have it striped in no time.
Scotty explain me this. I have a 98 Corolla, 1.6 4A-FE. Leaks oil into cylinder 2. In the emission test it gets perfect readings for everything at first and the next second the hydro carbons jump up 4x the allowed limit. Soon after they go down. And back up again and then down again. New plugs, new-ish wires. Lambda is fine always. Its a hot engine. Does that...
Holy crap! We almost made it to the end before he mentioned his 94 Celica. I was worried that he might have a video without it. Close call, Scotty!😬
It isn't possible. That 94 Celica is paying a butt-load for product placement.
And his cat made an appearance @3.51
😅🤣😂
Yes, and right to learn it wont through a PO430. The trick is to have a car old enough that ig doesn't check the cat efficiency, then your cat will never be bellow efficency threshold. Good
Have faith, Steve. Scotty will always find a way to work a reference to his Celica into whatever he's talking about - and it always make sense. Myself, I've about decided that he and his wife are secretly practicing witchcraft. Haven't you noticed that you can never quire get a good look at her? I bet some of us have never seen her at all! Anyway, all of this stuff is caused by one thing. Magic. It's all just simple witchcraft.
If Scotty loses his arms he'll be mute
Where's the laugh emoticon when you need it.
The Psychonaut, nah, he just won't be able to balance himself
😂
@@ifreemantoo 😂
ifreemantoo 😆
I've been watching Scotty for some time now. But I wish you guys could've seen the way my 19 year old lit up when he wanted to tell me about this great guy who he's taken a liking to because he's doing some research to buy his first car. Thanks Scotty 😊
So if my car has an exotic metal. I must have an exotic car then.
Logic
exotic for a mechanic living in Houston Texas
The exotic metals is why they are expensive and thieves like to steal them off of vehicles.
Natural Creature so that car does 0-60 in what..? 2 days?
My car is erotic it shakes and vibrates going down the road.
3:32 suspicious cat walk by after hearing so much about cat converter.
That cat is the Team Leader in the Security Detail. Possibly has honorary middle name of Waldo.
BaiAnNa2014 Twitter my cat understands every word I say! I swear... I tell her to get me something ... She brings it to me! I mention her name, no matter where she is, she comes trotting over to me! They are super smart animals!😻😻😻🐈🐈🐈
Scotty picks up and shake tests that cat every 6 weeks to make sure its a good cat😁🐈
I bet the Cat actually does all of the repairs. Scotty is just the figurehead.
Dear Scotty I wanted to let you know, Almost anytime I have a question or could use advice I find your videos extremely helpful! keep up the great work! Always learn something new from you!
So you're saying *Cadillac convertibles* don't last forever??
*G I G A N T I C M O N E Y P I T S*
Okay Ricky
No....geta TBird..
You need to check your hearing aid batteries. 😃
Especially those classic Cimarrons
Scotty, you remember the catalytic converter refill kits GM used to sell. Basically you knocked a metal plug out of the converter. You shook all of the stuff that was in there out. Then you replaced the screen and refilled the converter with the GM supplied material and replaced the metal plug and then re installed the converter and out the door. I worked for a GM garage in the late 70's and early 80's. Not sure if they made new converters back then but that is how that garage fixed the problem. I never saw that in any other garage.
I remember it, because I did it. Hardest part was getting the old "beads" out. That air operated tool to get them out was a joke; had to shake some of them out. You know, grunt, shake, grunt shake.
6:39 Use OEM cats
6:46 silicone spray anti tip
7:46 chemical tips
9:42 the hook/tip 10:00
not true. he said "in the case of infinitys you have to buy the oem" not all cars use oems
@@joshbowman7114 if its not oem it doesnt have filtering metals and it breaks after 20k km
@@Noooo23523 how is that even legal then? XD
@@joshbowman7114 its legal just it isnt good like oem it lacks the quality and materials and breaks every year depends
@@joshbowman7114kly
I did the lacquer thinner and the codes cleared up. Only run top tier citco gas and never have had any more cat problems. My 2002 4runner has over 300000 miles and it is awesome. Thanks Scotty you rule.
I'm about to try it on my Toyota Corolla with 460+ thousand miles on it.
How many miles now?
Scotty trying to make me commit crimes over here
"Crime" if you wanna call it that
@Joseph Whiskey Beale
Na your not committing crimes your making your car run better.
Trump is getting rid of California emissions so you don't need a converter.
@@stuartcote4915 Will be so great when all the kids in school will have Asthma.
Yup and he will also bring the girl from my cousin Vinny to court to help u and bring her up the stand😀👏😀👏👏😀👏😀cause her father was a mechanic her brother's are mechanics everyone at the pizza place is a mechanic😀👏NY style
I had 4 cats on my Ford 5.0! They clogged after a seafoam treatment. (Like ashes over the honeycomb ceramic catalyst unit.) You mentioned soap and water. I HIGHLY recommend laundry detergent and water soaking overnight than rinsed out with a hose. I removed the cats and put racquetballs in the ends to seal it. After it was done i never knew that engine put out that much power.
Have you tried removing all 4? I'm thinking of doing that myself. I keep hearing people saying "Just remove it they don't really work until 2009" and I got a 2002 😑
Do you leave the racquet balls in or take them out?
@@joeydurocher5450 Back in the 80's we would always even converter, you'll have to find a muffler man that can trust you so he won't get turned in
Why would you put racket balls in your pipes!??
@@tedyBear59 I'm taking it they are there just to hold the soapy water in while he soaked it overnight then removed before rinsing out and then placing back on vehicle.
If the converter fell off going down the road is it a stray cat?
just dont touch it immediately or it will bite lol
Feral
ba-da-bump!
Nope that’s just free power
and a small group of them can rock your town......deciphonate that...
Scotty had me at "illegal"
Illegal....such a sick bird. Maybe the emissions testing places should use canaries instead of the eagles?
Me to that’s why I got the T-shirt that says the same
@@mikegrant8490 He can use aseton through the test.
It honestly makes sense that regular dish soap would work best to clean off burnt oil and other crud from a catalytic converter. For years volunteers have been using Dawn soap in particular to clean oil off of animals that were caught in oil spills and it works like magic. Really cool channel!
Have you ever seen how an animal covered in oil reacts to a volunteer attempting to clean it with carburetor cleaner? I haven’t, but I suspect the animal would not be enjoying itself.
@@Roland-Henry HAHAHAHAHAHHAHAHAHHAHAHA
@@Roland-Henry lmaoooooo
I remember back in the 70's when they started using cat converters, the first thing you did when you got a car with them was to take it to a muffler shop and get them taken out. The cars ran so much better without them. Of course that was in the years between when the gov required emissions equipment on new cars and before they started yearly emissions testing in some states.
I love the cat chilling in the background. I have one like that at my house, whenever you go outside he comes and chills with you.
That cat is a camera hog. It's always getting in a camera shot. It should have it's own channel.
I always remove the first cat from my turbo cars and fit a straight through pipe which gives around an extra 15 bph. The first cat is not required for mot test in the UK. A re-map may be required to get rid of the engine management light though
1979 Oldsmobile cutlass calais: 7 mpg, then removed cat and muffler resulting in 14 mpg. 100% increase!
Yeah those old 70's cats were horrible for efficiency. They reduced pollution a bit but horribly inefficient. In such cases I'd suggest replacement with a modern high flow converter, as they're MUCH more efficient and result in almost to no MPG drop
@@cpufreak101 Screw that. Take the cat off, punch out the ceramic honeycomb with a steel rod, put the cat back on, and no more cat problems. Won't work in areas where your car must pass an emissions inspection, but not every area has emission inspections.
@@daveb40361 not everyone is interested in committing federal crimes you know
@@cpufreak101 What I know is that the stupid environmental laws decreed by a runaway federal bureaucracy called the EPA has cost us billions of dollars in unnecessary repair costs and poor-running engines. Do I give a rat's rear-end about those stupid laws? No, I don't. I also know that in most areas of the country where there is no annual or semi-annual emissions testing, there's not a snowball's chance in hell you'll get caught gutting a bad cat and reinstalling it. However, if you don't mind paying through the nose for unnecessary and expensive car repairs, be my guest.
@@daveb40361 all I can say is do you not like breathable air? Go to smog filled China or Indonesia if you want an example of a world without the EPA. Good luck breathing.
For being a blind man he sure knows how to work on a car.
I always wondered the same!
Is he really blind???
@@dalcoz No, we just never see him without those damned sunglasses, so that's the joke. ROFL!
@@dalcoz 🙈
Oh, Scotty's definitely not blind. But, he is such a major car repair expert that he could most likely fix any car problem with his eyes closed. ;-)
WOAH! I did not know that silicone ruined cats and O2 sensors. Thank you for enlightening me. I pledge to never get a can of silicone anything anywhere near an intake, cross my heart and swear to God. Thanks, Scotty.
I remember visiting the motherland for the 1st time Manila, Philippines. One thing I remember was that a lot of 2nd hand commercial vehicles from mainland asia congested the streets. Many of these vehicles had the catalytic converters chopped off!! The smog was horrendous and I always had a metallic taste in my mouth
Judge: You’re still facing 57 years.
6ix 9ine: You’ve heard of Scotty Kilmer ?
Marc Acosta ?
Marc Acosta 🤣🤣🤣🤣🤣🤣🤣🤣😂😂😂😂
Those jokes got old already
Noooo not scotty
eddie mane nice
Love those straight through cats.
Back in the day, we just pushed a broomstick right through it.
No more problems, and still passed the E-Check crap.
hey, Scotty, just one question: do your neighbors even know you're a global youtube superstar?
No. They just think he's a crazy old cat man lol
@@hello-do7pc As if u won't get old n fart sh*t out of your annus? LOL
No they look out the window seeing him talk to his self all the time waving his arms and think hes nuts
He does have over 2.7 million subscriber's, eccentric as he is he's making money
@@ronaldbuckholz3093 he has to be making some money off of TH-cam you think he would upgrade his garage or clean it out some
If you only have one o2 sensor before the cat, and its emissions are done using the obd2 port. You can break the material in the cat, put it back on and still pass emissions. You can also do this on most cars(obd1) with smog pumps because they almost always only need the air pump. If anyone asks I didnt tell you this and I've never done this lol
Had one plug up on my 1991 F 150 300 6 Cylinder 589,000 miles! Still runs today ! My son was home on leave and removed it and it ran so much better!
Overfilling your gas tank can cause all sorts of problems and codes. I had a code for the cat converter for the longest time and when I stopped Overfilling my tank the codes went away eventually.
Never had an issue other than it fucked up my fuel gauge. The gauge still works but the empty is on the 1/2 tanks it’s like it just shifted. Fuel light and everything works
Why would you overfill your gas tank?
@@tedgey4286 you know how when the gas filling nozzle pops you can continue filling it a bit more sometimes just to round up the amount.
My son was 90+ miles from home when the cat. clogged up. All the way home he could only drive 30-35 mph. Normally he drives WAY too fast, this was the first time he saw EVERYTHING along the highway! If it ever happens again, I'll give the ideas you gave and hopefully it will save him some money. Thanks Scotty!
Mr uncle brother daddy scotty knows his stuff and is always a go to for auto issues he’s always reliable thank you sir
This MAN scotty is a for real Vietnam combat Veteran!! 101 AIRBORNE.
My uncle worked with the 101st in Holland in WW2. Market Garden around Zon.
Damn i am vietnamese
@@nickisfast4284 🤣🤣🤣
I would like to see Scotty do his own budget minded builds. Off road rig, hot rod, finding, buying and fixing a vehicle for daily driving, fun weekend toy, etc. Would be interesting to see his thought process and how he works.
He only recommends Toyotas. I don't think he is into anything but stock car configurations
I have a Made in the USA 2006 Cadillac STS still passing E-Check, with original exhaust & catalytic converter...So much for your Celica Scotty... 21MPG & Room enough to carry the family...we are comfortable to...
LOL I still have a couple of those "TEST PIPES" they used to sell when they started using converters.Of course that didn't last long when they noticed we didn't swap them back I might even have my old "Bypassing emission controls" book sold by JC Whitney !😀😀
This guys is the coolest sober person I've never met
Ummm, I'm thinking that last part might not be true. I'm okay with that though.
I believe he's has been nipping the nectar. Nothing wrong with that. Lol
Medication time.
Lmfao this twackball is far from sober
@@ButIPoopFromThere yup grandpa's ole cough medicine daily,
My 2003 dodge caravan got the p0420 code. It lugs up grades but runs fine on the level ground.
If I hear one more person refer to it as a "Cadillac Converter" my head is gonna blow! 🤯
HILLARIOUS!!!!
I got a Cadillac covert with a 6.0 and it’s all wheel drive 🤣😂🤣😂
Jonny DIY They're like a Cadillac: when they're good, they're good, when they're bad, they're bad! Lol
Heard an Autozone employee say it not too long ago:/
How much iz a earl chain?
Clog up your engines!
lmao!
😭😭😂😂😂
Scotty you are like the father mechanic that I never had.....
God-bless you sincerely........
Underrated comment!
Exactly! Makes me want to hold the light for him!
Thank you Scotty! I used laquer thinner method from your older video, P0420 gone and hasn’t came back. And the car run much better! 👍
Same here,2 gallons lacquer thinner to a full tank of gas in a Toyota Tacoma ck engine light went out half way through the tank!
Think I might have to do that on my 2003 New VW. turbo.
If there isn't any negative side effects from running lacquer thinner then i guess it's worth a shot with my p0420 code
I have a Ford Expedition that had 2 cats. I removed both of them, including the resonator and it runs much better. I ❤ that free flow sound.
Get this... While living in California back in the 80's, I had a 6 cyl Ford Granada. At over 150K miles, it would eventually never go over 35 MPH. My 'mechanic' friend removed the honeycomb from inside the cat converter. It ran great and never failed a SMOG inspection.
Big problem here in the UK of thieves cutting them off cars to sell the precious metals.
How much do they get for the metals?
DG *crackheads
Depends one what car a bmw 330d cat goes for about £300 but most scrapyards are suppose to make sure its legally obtained
Same in the US.
DG Really?! I thought the UK was a perfect utopia without crime!
I tried the lacquer thinner then wound up with an EVAP leak. Be careful with what model you have, where the fuel pump is, etc. I later discovered the port for one of my O2 sensors had broken off. So, also, try to diagnose before just throwing things around.
Thanks Man, I had an air leaks at the throttle body baffle, a bad coil and a fouled sparkplug that caused problems and got me a p0420, p0507, p0068 and p0496 error. Replaced the clamp, replaced a faulty coil and new spark plugs and wire all around. All the codes went away but the 0420. All the O2 sensors tested fine. I trued catclean or something like that and tried to seafoam it to no joy. I used a IR temp sensor on the cats and the driver side was close to 150 degree higher than the passenger side.
I figured nothing to lose now so did the lacquer thinner in the tank and after an hour of driving the check engine and code p420 is no longer active.
And the truck is driving a lot better. Thanks you saved me close to $900 for a new ypipe with cats!
I always see people commenting on scottie arm movements while he talks but it actually makes a lot of sense based off of his career path. Normally people who use arm signals are tactile learners meaning they learn by doing things so when they try to communicate with people they use the hand signals because it's how they're brains wired so automatically if something easier for you as a person you assume it's easier for everybody subconsciously. Actually also makes sense as to why he's so successful. If you end up in a career you're mentally/physically tuned and gear to do you're going to excel in it.
Catalytic Converters don't make the car run bad, unless it's clogged. Also, keep in mind, if your vehicle is 1996+, it will turn on the check engine light, due to downstream o2 sensors required in OBD 2 systems. BTW, I actually pounded out the guts on a clogged up converter, (it went back in the car, as a hollow body) just to get a beater car going again so I could give it to a relative who was in need of cheap transportation.
Very nice video
Most important thing i learned is that silicone fumes or burnt engine oil can definitely clogg or damage the catalytic convertor, very good to know.
Thank you scotty.
That cool cat was wondering why scotty saying cat so much
DVL AV 5:52
A very clear and comprehensive review. Thanks for making me smarter on Monday. I think I'll take the rest of the week off....
bought a VW Passat Variant last year, build in 98. The Catalytic converter was still good but the rest of the assembly was rusted! The main reason i had to buy a new one was a broken flex piece (these mesh tubes to negate rattling). The Outer wall of the flex piece was ripped apart so my car was loud af
"I use this stuff called lacquer thinner, from the automotive PAINT store..." ~ Scotty
I love this guy!
H
Robert Garcia ,I’m not a mechanic.dont get what you’re saying.been working on 1996 4 runner .im starting to wonder if I’m going restarted! Are you saying lacquer thinner is lacquer thinner no matter where you get it? If it’s clogged can’t you just break that honeycomb stuff up and put it back on for a straight flow?
How often would you recommend cleaning the catalytic converter with the lacquer thinner? Additionally, how much should it be driven until the next gas tank fillup? Got a 1996 camry with about 250,000 miles.
Is this Robert Garcia, "I didn't did it?", SSSA?
@@wbwills2 Yup that's exactly what Scotty means. It's a joke. Laquer thinner is the same, no matter where you get it and is not special to any one field. You can find it anywhere including your local hardware store. As for you answer on breaking up the honeycomb inside your cat. conv., Yes you can and you will have better flow since there will be no restriction, but you will set a Check Engine Light on because the o2 sensor will pick it up immediately, not to mention your vehicle would run less efficiently resulting in less mpg. Not to mention failed smog issues.
Being stuck in heavy rush hour traffic really makes me appreciate people being required to have catalytic converters.
Exhaust smells horrible
Salvatore Shiggerino sooooo true !!!
Come on it’s not that bad lol
I've been behind many an old stinker of a car and I totally agree on that. I can't imagine how bad rush hour must have smelled before they added them, doubly so for your health.
Trump is The Man 💪 💯
well the vacuum leak thing isnt likely because the ecu compares the front o2 sensor to the rear o2 sensor. if the front 02 sensor is lean then the rear o2 sensor will also be lean and the ecu will normally know this and throw a different code. there are exceptions though, but for the most part the bad cat code is just that. But what caused the cat to go bad in the first place. If its plugged then you need to find out why or your new one will fail too.
Never knew cars had Cadillac convertibles. Thanks Scotty, learn something new everyday.
😅
The dislikes are oem catalytic converter and muffler dealers
A comedian once referred to it as a Cataclysmic Perverter...and since then, this has always been that. Thanks for the detailed info on the Cataclysmic Perverter!
I didn't know scotty spoke Italian!!...his hands are everywhere!!
Italian background
leo jones not with the name Kilmer buddy....
Is that italian I was thinking more like Swaheeli
I nothing about cars, and still subscribed! I wish Scotty was my mechanic. I imagined myself in this video having a bad cat and him explaining it all to me. The best! Super informative.
I just replaced my converter with a glass pack, and surprisingly get better mileage.
Glass pack muffler?
@@Susan70003 Yep. Thrush Cherry bomb
People still buy those and actually put them on their cars ...🤣🤣👍👍
@@shaun7057 Ohhh yes. It actually sounds nice. Not too loud, and doesn't sound like a Prius. 😎
@@evilal20 lol what kind of vehicle is it on? Think those sound good put on some flowmaster super 44 mufflers or if u want more of a note throw on some flowmaster super 10's
A good mechanic can tell if your not a good mechanic and most mechanics are part changers. Scotty is a great mechanic.
lacq thinner worked for me! On another project im trying cataclean. Also consider: I drilled a small hole in the exhaust before the cat and sprayed carb cleaner etc in w a straw w the engine running!
I probably shouldn’t admit this when I worked as a lube tech in a shop that would do major jobs on cars we had a few customers that had cars that flat out wouldn’t run due to the cat. A few just flat out didn’t have the money to replace the cat so we took a drill bit to the front side and sent them on their way
What do you mean by front side ?
@@davionnathomas3563 the side where the exhaust would flow into the cat from the engine
Nobody:
Scotty: *R A T L I N G*
i have visions of baby rats.
Rattling
This man IS FULL OF KNOWLEDGE. I WOYLD LOJE TO HAVE A FULL TIME, JOB WELL PAYING JOB TO TURN I TO A CARRER AND WORK AND LEARN FROM YOU SCOTTY. WE NEED GOOD PEOPLE IN MY AREA!
this man induces me to choose to smile a lot as I watch his videos. He is a healer. I do feel sorry for people who live in places where vehicles have to pass tests. Why dont they just still a bloody big cat on the last pipe at the oil refinery?
Diesel or gasoline is not the same thing as exaust fumes. Some of the nocive gases are a byproduct if useful substances burning after they have done their job.
He's waving his arms so much I feel a draft..
k j he blew my hair back.
Ha, ha, ha, haaa, haa.
He must be Italian
Reminds me of jack sparrow 🤣🤣
🤣😂🤣🤣🤣
I've done the soapy water method with a little twist. I sprayed it good with oven cleaner, let it set for 15 minutes, placed it in the soapy water. 24hrs later returned to the bucket and it was black with crud at the bottom..and the Cat looked brand new! Rinsed it good, Put it on my car, code went away, and it sounds better..
"Some people will complain......."
*Shows Ericthecarguy*
cliffdaddy126 he loves taking shots at other people but I’m willing to bet my last dollar that someone says something about him, his age will show and he’ll have a heart attack and break his hip when he falls
😂😂
They are all probably friends. Look at Samcrac’s latest video, he picks hard on Rich Rebuilds... (and Rich picks on Samcrac... )
I think he said whine when he showed ETCG.
Pretty Sure yea OLD G
Remember my great uncle showing me how to fix my cat on my old 80s model. Step 1; remove the cat. Step 2; jam a crow bar through the cat. Step 3; shack out all the debris. Step 4; reinstall the cat. Old truck ran like new again.
Yup and even the new ones do too. It is only against the law if you are viewed doing it by a US Marshal on duty. Trust me your safe. This time:)
@@carlovincetti1352 what do you do at inspections? I'm guessing there's a high probability it won't pass- but maybe I'm wrong?
In the UK, we have garages which specialise in tyres, brakes and exhausts, one of their favourite tricks is to jam a long object down into the catalytic converter to break it, and then tell you it needs a new one, "because it's got a rattle".
Loved the video Scotty.
Subscribed bc this is one of the most simply described, easily understood video on something that has annoyed and baffled me for a long time. CCs suck BIG-TIME! I hate them too.
So all-together thank you for the tip on how to clean those suckers out. 😁👍
4:07 The AC Tech in me cannot look past the condensing unit and how much vegetation is surrounding it. Trim those plants Scotty if you want your AC to work efficiently. Ok, i'll stop, lol
I do landscaping and see that all the time. 5 minutes of work can save you thousands of dollars.
I have been telling him to get that creeping ivy off his brick. He will learn the hard way soon.
gm1258001 I do landscape and always trim around AC. What happens if I didn’t tho?
@@eligavia Weeds grow up around the A/C and choke it out. Be careful weedeating around the power lines. It's better to spray that area or clear it by hand. The customer will get very mad if they don't have A/C.
Scotty I do exhaust for a living. If you have ANY AIR LEAKS in your welds it will set light off also. I put aftermarket cats on infinity all the time. You must put and match GVW Or vehicle pounds. And don't buy ones off scamazon.
What do you call motor oil from Cuba?
Fidel Castrol
I think you're Havana's on..
Da da dun tssssss
I've heard of people removing the catalytic converter, using a screwdriver to break up and remove the honeycomb insides, and then bolting them back in place. That way it works like a straight pipe, but looks like a cat. Not recommending it, but that's just what I've heard.
Sleeve the hollow cat with pipe and it still flows nice. Allegedly..
All you had to say was I’ve heard people gut their cats
Good contribution Steve. You have enriched the conversation.
Mathew Oates I’m just saying he didn’t have to write 50 sentences all he had to say was I’ve heard people gut their cats
A lot of people try to uae them as this giganric bandaid fof some other underlying issue qhen trying to pass smog.
The catalytic converter uses a principle where precious metals like platinum actually react and glow red hot when exposed to unburnt fuel, so it naturally cleans up the tailpipe
I was in the middle of watching a Scotty Kilmer video, seriously?
Any ULTRA permatex sealant is just fine. It's the regular sealant that will clog up sensors.
Thank you. My wife was looking HARD at a Mini a few years ago, but we managed to avoid what I now know to be a bad decision...
We have a 2005 Mini S, runs great, replaced alternator, I do the brake pad replacement. 112K miles...... Just bought a 2014 twin turbo Mini....12K miles....super car.
Looks like Scotty's cat leads a life of leisure there in Houston.
In his next life Scotty will be an orchestra conductor.
Jajajaja 😂😂😂
Scotty,
A first time to comment pretty much on any of the videos I watch. And I believe you and one other are the only ones that I follow. The other is my nephew, Luke Levenson, who is a musician and a really good one.
In the same breath, I would like to say that you are, as well. I have Herrald with cars, my whole life. I have restored and rebuilt cars and I’ve loved them since I was probably seven years. I absorb information on regards, cars, old and new. I have learned more from you than pretty much anybody, including my trade school instructor. If I could, I would pay money to come and spend a couple of weeks with you and learn all your tricks how much money as I can I really appreciate you sharing with all of us.
This happened to my turbocharged Subaru. The up pipe pugged the turbo so I wouldn’t spooled. But now it has and aftermarket 1320 uppipe with no cat.
I wouldn't be admitting to a federal crime online if I were you.
Lol the new STIs now only have one catalytic converter as well from factory, the design of putting a cat before the turbo was a bad design which has been eliminated
You could just replace it with a normal straight pipe. A catalytic converter over here in New Zealand cost about over $200 second hand.
So could make a couple extra bucks and make your car sound a little more grunty 😁
My after market cat costs $1,900 USD
Government made it illegal to buy/ sell used
That’s federally illegal in most states in America, he stated so in the video and it’s a pretty well known authoritarian fact that most Americans know, we can’t do anything fun or that saves us money “legally”, Lol.
Really respect this guys knowledge. Long story short cut the catlick converter off. Best cheap option ever.
Scotty, you’re like one MILLION SHOP TEACHERS morphed into ONE!! 😂 🙏 🙏🙏🙏
The lbs of ground beef picture was freakin hilarious. 😂😂😂😂😂
what is the first thing you notice when you develop a vacum leak?
I like how the random animals are always stealing the show in the backgrounds in your videos. Hahaha!
I knew a guy who stole cat converters out of mall parking lots with a cordless saws all. Imagine the surprise of the driver when they came out and fired the car up, Haha. Thankfully, he served time for that and other issues...
Happened to me recently. I’d like to send your guy some roommates.
brettwrb musta been a damn cat burglar!
on some vehicles when the catalyst breaks down and one good backfire can blow the muffler open as i seen it on a minivan and pickup truck. as the converter when functioning correctly can prevent the unburnt gas from reaching the muffler and igniting happens when the engine coasts from a rev mainly or highly modified vehicles. as its illegal to remove them as the fine is very hefty in California.
Cat in the background, "why are you always talking about me?"
ROFL!
🤣🤣🤣
I see this guy and automatically think “chip im all jacked up on Mt Dew!”
Hahaha
mathew wright hell yeah.! I wonder if he made a stone cold fox.....
mathew wright ,lmfao
Hhhmmn,
Mountain Due,
Mooooooon Shhhhhhhine !
I had a Plymouth Volare station wagon w/slant 6 once. It was stock with a 4v Carter 4BBL., and a manual 4spd overdrive floor shift! Cool car got 25mpg hwy.! Discovered the cat was restricted from actually having melted the ceramic cat core mostly shut (imagine how hot THAT had to have gotten!). Disconnected the rear exhaust from it, reamed it out with a length of rebar and a hammer, started the car for a moment (to blow the chunks out..). Reattached the exhaust and "end of problem" (of course, I lived in a place that had NO vehicle inspections.....). Ran much better and thriftier after that fix. Still looked all stock and complete.
Whenever Scotty Kilmers drops the new videos I pack up the Hash Pipe with Rocky and get all schmoked up.
Grandpa Kilmer and Great Grandpa Kilmer trained uncle Scotty extremely well! Lives up to their values! ❤
I had been getting a P0420 on my 2006 Prius with 250 K miles. It was burning about a quart of oil every 1500 miles. The code would return every 100-150 miles of mostly highway driving. After three times, I added a gallon of the lacquer thinner from Walmart, then drove 400 highway miles in a single day for vacation. I also replaced the old and weak 12V battery. Going on 1100 miles with no issues. Try the lacquer thinner. For $15 it might just be the cure.
Scotty, bust a freestyle with those endless arm gestures.