I had a jeep today same thing. In the past I’ve noticed vehicles with misfires after misfire repair shows a P0420. And like you said. After driving it for a while. It goes away. I tell them to put a cleaner in the fuel. The jeep today is like yours. Runs great. The upstream and downstream mirror each other. I told him to try a cleaner and well check it again in a few weeks. He actually came by for something else. But my scanner picked up that code. I’ve only replaced a cat twice. One on a Pontiac that one was clogged. Had ignition problems for a while. The other a hummer. It was cracked at the head. I mostly help friends and family. Since it’s more of a hobby. So I can’t say on a wide scale.
@dannyh773 Thanks for sharing your experience. I'm leaning towards using the Cataclean. It's $30. If it fixed it, that would be great. Keep wrenching! Kenny
Here's another trick for passing inspection on a different problem but you can add to your box of Trix. 01 T&County cel on for slow application of lock up torque converter. Clear the code and then drive less than 35 mph until all the tests pass that become not ready from clearing the codes. Then drive to inspection going less than 35 and the slow application code won't come on. I think the torque converter locks up at 38-43mph. Once you get your sticker you can go back to normal driving above 35 mph. Happy Motoring.
I would check the back pressure with a pressure gauge while the engine is running, perhaps through the O2 sensor opening meaning that it would have to be checked with the O2 sensor removed or do what Eric O from South Main auto does then drill a hole & fit a pressure gauge to measure the back pressure before the catalytic converter then weld up the hole after you have finished. I would probably remove the catalytic converter then check it if it was my own car because time isn't money then, maybe knock on it with your hand once it has cooled down to see if the catalytic converter has been hollowed out or the catalyst substrate is just plain destroyed. You can use that catalytic converter cleaner if you want to because they use that in China & it's pretty good stuff,it could be that the catalytic converter is stuffed with that many miles on the vehicle as well. I know someone who had an aftermarket catalytic converter fitted into his Holden VE Commodore in Australia which was setting a catalyst deficiency code when his mechanic fitted an aftermarket catalytic converter onto the exhaust system. Replacing the catalytic converter fixed the problem so it must've been a dud one !
A customer of mine had the same problem, what I did was put a bottle of Amsoil PI Performance Improver and filled the tank with Shell supreme fuel (V-Power) at least more than half tank with that fuel and drove it for about an hour on the interstate, then go have tested. Each time did that it pass. Of course here in Albuquerque, NM for the emissions they only plug into their computer and not really faulty wipers or busted light bulbs or anything like that. (Customers car 2002 Pontiac Grand AM GT V6)
We just ran a bottle of CataClean through a '04 Lexus ES330 and the difference was noticeable. Its not miracle-in-a-bottle but if what it does helps your vehicle, then it's a great deal. Considering the cost of a bottle, it's worth a try if you have Cat efficiency issues.
@@WrenchingWithKenny I don't have a scan too that let me see the results so I'll be very interested to find out what you see. Our experience was in subjective feel before and after which isn't the best way to judge it. With you not being a fan of mechanic-in-a-can, a positive result reported by you would be weighty.
My son's 2012 Compass had a cel for an O2 sensor and it was still there after he replaced it. Then his left headlight and left signal went wonky. I redid all the grounds on the rad support and fixed his lights. Well on the way home his cel went out. No more O2 codes.
I was hoping to see Bank 2 Upstream and Downstream O2 Voltage. If they are similar to Bank 1, leave the O2's alone. I would check Mass Air Flow Sensor Value. Skotty Kilmer has taught me to pour a gallon of General Purpose Lacquer Thinner in with an empty tank of gas, then add half a tank of gas. It's cleaned three different Catalysts for me! If you DO. end up needing e Catalytic Converter or two, you MUST BUY CATERAN Brand. They're made in Canada and they actually work to pass the emissions test. I was a dealer Service Technician for Porsche/Audi.
Last year my 03 Camry had a cat efficiency code and a downstream sensor code that was intermittent. I fixed the exhaust flex connector and found a broken wire on the downstream. Cat is fine.
I’d use one of the methods to clean them, cataclean, acetone or lacquer thinner. Then run through the basics as to why they got coated to begin with. Judging by the miles, it probably happened before you bought it but run it through and verify. Operating temp and tuneup would be my first guesses. First owner might have run the plugs till they coded at 170 180 K.
I use sea foam or other cleaner like that and put i use one of the vacuum hoses to suck it into the engine right from the bottle then drive it around till the smoke goes away. I have gotten many vehicles to pass smog tests.
I would do an oxygen storage capacity test on the cats. I've found it to be a lot more accurate than comparing front and rear sensors. Scanner Danner has videos on how to do it. No special tools needed except a scanner and a bottle of propane. There is a newer product called Cataclean. Seems to have good results. If both cats set codes at the same time I would also check for software updates for the PCM. Unusual for both to fail at the same time.
I would check for and fix any exhaust leaks first, then I'd run the catalyst efficiency test with my ATS Escan Elite just for fun, since I already pretty much know what it's going to say. At that point, the cats are dead anyway, might as well try the cleaner, not much to lose there. Then if that doesn't work, I'd make sure the cats weren't poisoned by coolant/chemicals/etc before replacing them. OEM cats are probably NLA or absurdly expensive, and aftermarket cats generally don't work/last.
I’ve had good results on my personal cars a couple times with installing a new upstream O2 sensor and installing the old one on the downstream which created enough of a differential between the two to keep the code away for good. I suppose that might be tricking the ecm a bit but the tailpipe emissions passed with flying colors in California. One of these examples was on a 300k mile BMW that wasn’t worth spending $1400 on a new cat.
if you are going to use a cleaner product kenny i would recommend trying the product cataclean since its made for cleaning catalytic converters and 02 sensors according to the bottle labelling
Good day brother Kenny, sorry to hear that you were sick but I'm glad to now that you are getting better. If I were you, I would try a bottle of "Guaranteed to Pass Emissions" gasoline additive and I would try to add it to only 5 or 6 gallons of gasoline in the tank thus creating the greatest concentration possible . I would then run the "piss' out of the truck or "drive it like you stole it" type of driving with most miles preferably being highway miles. If that didn't clear the check engine light and the codes, then I would change the O2 sensors only and go from there.
I would just get black electrical tape and put a piece over the engine light.LOL Actually I have never messed with this because we dont test in my area and we just ram a steel rod through it if its clogged or if you got money put a replacement pipe in. I live in rural farm country.
Buddy had bought a BMW that the previous owners mechanic said it needed new cats. The car had been lightly driven... many short 10 mile trips over 2 years. We ran it hard... several 100 mile trips to heat the cats up really hot and the cat codes went away. They were just clogged from too many short trips.
i did a can of acetone on a 2000 gmc and it worked cleaned the cat and code went away in a week i had nothing to lose . after i commented i remember i had the exhaust of and poured acetone into the cat lots soot came out and i added a can to gas tank .
12:21 I'd buy a gallon of laquer thinner and run it through the gas tank. Look for change. Maybe it will clean something out. Most cat cleaners are just heavy acetone concentrations. CataClean comes to mind. I want it to work, makes exhaust smell like laundry detergent but not sure it works....
I've tried cat cleaners I think what they do is just wash the shut off the catalyst so it's more efficient I've seen them work okay in short-term. I'm a registered mechanic so I don't want to say what else I would do. But generally If I Saw those graphs don't look good to me I live in the communist state of California and if the rear 02 is fluctuating above 500 At 2500 RPM For more than a second or 2 it's gonna flag P0420 or PO430 codes When cats are starting to get weak sometimes the codes will come and go depending on a long freeway drive. Temp probe if that cat's not getting over 1800° it ain't working. I have on my own vehicle put a rosebud on a torch with the car running and dump some sea foam through to clean cats. It worked to get it through emissions once light came back on in like 50 miles. We all as professional know the dirty tricks they're all over UA-cam. Some are impressive.
We don't have emission inspections in Wv but if your car had a Cadillac Converter from the factory it has to have one to pass a state inspection anymore used to not matter now it does.
Hey don't worry about check engine light, clear it,run vehicle for 20 mins on highway at about 45 to 50 mph,then do inspection immediately n it will pass,everytime.
Got a p0240 bank 1 s2 on 2012 acadia with 104ooo miles tried cat cleaner 2 different brands thru the fuel system no luck.next i will try sea foan spray into the upstream 02 senser holes and let it sit for a while.already replaced 02 sensors
Bad ground on the wipers and on my 92 s10, the check engine light was on so long that the bulb went out in missouri 96 and newer got emissions tested that was in 02
I would try the cat cleaner first just to see what happens I own a older 2006 explorer and I am having the same problem thinking about trying the cat cleaner for right now can’t afford to replace a cat right now but we don’t have inspections in the southern part of ILL they do way up north but not down here just saying it’s worth a chance to see it is does work never had to try it myself.
Your sensors are working and I saw mimicking activity, which leads me to believe {assuming the substrate is still in the cats} that the cats are sooted up. If there is no power loss, a back pressure test is not necessary. Try a cat cleaner and if that doesn't work, remove them where you can wash them out. An acidic liquid such as lemon juice will help in that process.
O2 spacers are illegal in most states. That’s one reason why they look under with a mirror… and to see you have cats under there. They also only mask the problem. The test center sniffers will still pick up the imbalance and you will still fail. Best to fix the actual problem.
On my Suzuki SX4, it has p0420 codes and i noticed Cataclean works for a while (not so much the other products) or driving it harder to heat the cat up, but it comes back. I think its due to my oil burning at start up (suspecting Valve Stem Seals?) its been happening for 50k miles according to the previous owner, but not sure how long the oil burning is. But assuming Cat code is coming up because of inefficiency due to being dirty, and if Cataclean IS cleaning it and the cause of why the code goes away, This truck might be similar, and if its not burning oil or damaged, it might be long lasting Sadly my case is not the same.
Scotty Kilmer has a video about n checking exhaust pressure at sensor one- before the cat. Just tells you if the cat is clogged. I think any more than a couple of pounds is too high. But then why would the downstream sensor be oscillating? Broken media inside the cat?
With both being bad, I would think they were dirty. You need to try a rev up tuneup and maybe a cat cleaner. Then maybe install some defoulers. The engine issues you had could have clogged up the cats or sensors.
Try a spacer on the O2 sensor and hope it doesn't set a slow response code, replace the dead cats, or move. I'm glad I don't live in a county here in GA that requires emissions certification because it's a money grabbing gimmick.
Strongly agree. Emissions tests are a snapshot in time. In the ATL area of GA, emissions tests are required. Never mind there are thousands of cars a day driving all over and through the ATL metro area by people whose cars aren’t required to be inspected because they don’t live there.
Check your state's rules on emissions testing older vehicles with CEL on. My wife's 08 outback had the P420 code but still passed emissions. Age of vehicle matters if CEL is an automatic fail or not here in Colorado.
It doesn't fix the problem but it does sometimes mask the problem good enough so the computer doesn't detect it. Try spark plug non foulers on the downstream sensor. It has worked for me for over 2yrs. They are only about $10 for a pack of two.
Every vehicle that came in the shop with cat. efficiency codes needed converters. If there is another way to get that code out I'd like to know even though I'm retired. Let us know Kenny.
Next year the truck is 20 years old and not subject to NC emissions inspections. You might check when the truck's entry into service date is. Plug defouler on the downstream sensors for this year and then after that who cares. Or just drive it expired like everyone else does in NC until it's 20 years old.
Hi Kenny,you probably have covid ! I wound up getting a new after market cat,that didn't work,so we tryed a OEM CAT and the light went off.It seems only a OEM VOLVO cat would function.Volvo has a monopoly on there parts apparently. 2011 V70 VOLVO. And at 2500 dollars that hurt.What do you do ?Get a newer car ? I'm in Massachusetts where they do emissions.
Its obviously not clogged since you don't have any performance issues. Says to me (if the 02 sensor is accurate) that the CAT simply isn't working anymore. Short of replacing the CAT tossing some cleaner through it is your next best shot. If all you're after is getting it to pass emissions for this year that has a good chance of working for you. But you know the proper fix is to replace the CAT.
OK! So are the wipers bought in from Citroen? They all have minds of their own! As for the cats? Check for exhaust leaks and then bite the bullet with replacements.
@@WrenchingWithKennyoriginally picked up for my 03 S10. Bought two only needed one. Generic. I'll dig it out and take a pic and send measurements to see if you can use it. I had to weld on some fittings to fit my smaller exhaust. From what I remember thought I think it was a standard ECOII universal.
Kenny I want to replace my head lights with LED lamps on a 2013 Yukon. Pain to do it. What’s your opinion on this. And a good brand of LED’S. OR Branks to be fair. Thank you watch you all the time you are a worker. Not a UA-camr
It does not take much to trip a catalytic efficiency code (anything less than 95% can cause a code). That is ridiculous in my opinion. 1. Check the entire exhaust system for leaks etc. 2. Pull the O2 sensor after the CAT and clean or replace (I also add a spacer to offset the sensor). 3. There are all kinds of so-called cleaners and methods but only two seem to work (Techron on a regular basis, I add after every oil change 5,000 miles) and Seafoam SS14 Quick Acting Cleaner. Special Note: Chemically, carbon is an extremely inert substance and highly resistant to acids and petroleum cleaners however if you choose to go the cleaner route you can soak the CAT in Varsol or Mineral Spirits. Sometimes that works.
I was thinking the same as you. Its kinda stupid that perhaps the cat is at something like 80 or 85 percent efficiency and it still trips the P0420 code. You have to spend big bucks just to gain back that 10 percent and pass inspection. My GF's car tripped that code at only about 30k miles. This is because my mother owned it and only drove it to the store and back twice a week and then it sat in the garage. So, I figure it kinda coated with carbon or whatever. I put in the spacer and where we live we do not have inspections. I have never had any luck with those cleaners. It may clear the code for a short period but it always returns. Hopefully they do not look under the car and Kenny can get away with a spacer on the cats and the cats are not restricted.
I had to laugh a little bit when you said you weren't worried about the washer level sensor. For years we were certified to do inhouse emissions testing on the city fleet, but then the higher ups decided to send everything to the state facilities (and pay the fees). Why? Who knows! We would constantly get vehicles back that had failed testing because the low wiper fluid warning light was on.
A quart of water in a spray bottle run motor at high rmp's and spray in the water in the intake with a operate temperature motor the water will steam the cat clean
The Detroit axle stuff I have used on customer's cars but I use it with a grain of salt. I do not use it if the customer has a high demand for performance Such as driving on Dirt roads or heavy use. But it does have its Place on a older vehicle that runs well But it's not worth Putting 3500 dolours into suspension Parts alone Which is what a typical truck front end will cost. It's a customeris not intending On owning Is the vehicle or having The parts not last another 60000 Miles and the person just needs to drive it to get to work and back Detroit axle parts seem to be okay not great. But good Option for someone on a small budget to keep their vehicle on the road It has a mechanic that installs these incredibly cheap parts. Needs to let the customer know that these are cheap parts. As a conscienthis professional mechanic you have to give them the other options.i never had any problems with them. In my opinion they have their place
If the cat is solid on inside and you can take off clean with dish soap and blow dry with air compressor. Another old school try is a gallon of laqeur thinner in ur gas tank
I'd check your cat with an infrared thermometer before and after the cat. See if it's doing its job. Ive never had much luck with cat mechanic in a can. If your not in a carb area and your cats boogered, after market.
I had a jeep today same thing. In the past I’ve noticed vehicles with misfires after misfire repair shows a P0420. And like you said. After driving it for a while. It goes away. I tell them to put a cleaner in the fuel. The jeep today is like yours. Runs great. The upstream and downstream mirror each other. I told him to try a cleaner and well check it again in a few weeks. He actually came by for something else. But my scanner picked up that code. I’ve only replaced a cat twice. One on a Pontiac that one was clogged. Had ignition problems for a while. The other a hummer. It was cracked at the head. I mostly help friends and family. Since it’s more of a hobby. So I can’t say on a wide scale.
@dannyh773 Thanks for sharing your experience. I'm leaning towards using the Cataclean. It's $30. If it fixed it, that would be great. Keep wrenching! Kenny
Here's another trick for passing inspection on a different problem but you can add to your box of Trix. 01 T&County cel on for slow application of lock up torque converter. Clear the code and then drive less than 35 mph until all the tests pass that become not ready from clearing the codes. Then drive to inspection going less than 35 and the slow application code won't come on. I think the torque converter locks up at 38-43mph. Once you get your sticker you can go back to normal driving above 35 mph. Happy Motoring.
I would check the back pressure with a pressure gauge while the engine is running, perhaps through the O2 sensor opening meaning that it would have to be checked with the O2 sensor removed or do what Eric O from South Main auto does then drill a hole & fit a pressure gauge to measure the back pressure before the catalytic converter then weld up the hole after you have finished.
I would probably remove the catalytic converter then check it if it was my own car because time isn't money then, maybe knock on it with your hand once it has cooled down to see if the catalytic converter has been hollowed out or the catalyst substrate is just plain destroyed.
You can use that catalytic converter cleaner if you want to because they use that in China & it's pretty good stuff,it could be that the catalytic converter is stuffed with that many miles on the vehicle as well.
I know someone who had an aftermarket catalytic converter fitted into his Holden VE Commodore in Australia which was setting a catalyst deficiency code when his mechanic fitted an aftermarket catalytic converter onto the exhaust system.
Replacing the catalytic converter fixed the problem so it must've been a dud one !
@RussellBooth1977 Thanks for giving me some great ideas. I appreciate you. Keep wrenching! Kenny
A customer of mine had the same problem, what I did was put a bottle of Amsoil PI Performance Improver and filled the tank with Shell supreme fuel (V-Power) at least more than half tank with that fuel and drove it for about an hour on the interstate, then go have tested. Each time did that it pass. Of course here in Albuquerque, NM for the emissions they only plug into their computer and not really faulty wipers or busted light bulbs or anything like that.
(Customers car 2002 Pontiac Grand AM GT V6)
Of course the check engine light was cleared before proceeding to drive on the interstate prior to inspection
We are seeing a good amount of covid in the ER I work in. Symptoms as you describe.
Can't wait to see what it is. I'm working on a jeep with the same issue. Cat is not clogged because of no back pressure. But 2 o2 codes
We just ran a bottle of CataClean through a '04 Lexus ES330 and the difference was noticeable. Its not miracle-in-a-bottle but if what it does helps your vehicle, then it's a great deal. Considering the cost of a bottle, it's worth a try if you have Cat efficiency issues.
@darkerbinding6933 Thanks for the feedback. I'm pretty sure I'm going to try that first. Keep wrenching ! Kenny
@@WrenchingWithKenny I don't have a scan too that let me see the results so I'll be very interested to find out what you see. Our experience was in subjective feel before and after which isn't the best way to judge it. With you not being a fan of mechanic-in-a-can, a positive result reported by you would be weighty.
My son's 2012 Compass had a cel for an O2 sensor and it was still there after he replaced it. Then his left headlight and left signal went wonky. I redid all the grounds on the rad support and fixed his lights. Well on the way home his cel went out. No more O2 codes.
You need too check. Some years of those rams the wiper motor was recalled because of faulty park switches. I did a pile of them working at the dealer
I see you changed scanner’s again!
That is the one I have, love it.
Yes, CAT cleaner should work. It's worth a try, it worked for me.
You never know
Worked for our car for just awhile, code came back though.
I was hoping to see Bank 2 Upstream and Downstream O2 Voltage.
If they are similar to Bank 1, leave the O2's alone.
I would check Mass Air Flow Sensor Value.
Skotty Kilmer has taught me to pour a gallon of General Purpose Lacquer Thinner in with an empty tank of gas, then add half a tank of gas. It's cleaned three different Catalysts for me!
If you DO. end up needing e Catalytic Converter or two, you MUST BUY CATERAN Brand. They're made in Canada and they actually work to pass the emissions test.
I was a dealer Service Technician for Porsche/Audi.
Last year my 03 Camry had a cat efficiency code and a downstream sensor code that was intermittent. I fixed the exhaust flex connector and found a broken wire on the downstream. Cat is fine.
I’d use one of the methods to clean them, cataclean, acetone or lacquer thinner. Then run through the basics as to why they got coated to begin with. Judging by the miles, it probably happened before you bought it but run it through and verify. Operating temp and tuneup would be my first guesses. First owner might have run the plugs till they coded at 170 180 K.
or,the original factory installed plugs but Kenny knows better than that, right.
I use sea foam or other cleaner like that and put i use one of the vacuum hoses to suck it into the engine right from the bottle then drive it around till the smoke goes away. I have gotten many vehicles to pass smog tests.
I would do an oxygen storage capacity test on the cats. I've found it to be a lot more accurate than comparing front and rear sensors. Scanner Danner has videos on how to do it. No special tools needed except a scanner and a bottle of propane. There is a newer product called Cataclean. Seems to have good results. If both cats set codes at the same time I would also check for software updates for the PCM. Unusual for both to fail at the same time.
check fuel trims just to be sure you dont have some over/under fueling going on. those upstreams although not bad bad dont look right
I would check for and fix any exhaust leaks first, then I'd run the catalyst efficiency test with my ATS Escan Elite just for fun, since I already pretty much know what it's going to say. At that point, the cats are dead anyway, might as well try the cleaner, not much to lose there. Then if that doesn't work, I'd make sure the cats weren't poisoned by coolant/chemicals/etc before replacing them. OEM cats are probably NLA or absurdly expensive, and aftermarket cats generally don't work/last.
I’ve had good results on my personal cars a couple times with installing a new upstream O2 sensor and installing the old one on the downstream which created enough of a differential between the two to keep the code away for good. I suppose that might be tricking the ecm a bit but the tailpipe emissions passed with flying colors in California. One of these examples was on a 300k mile BMW that wasn’t worth spending $1400 on a new cat.
if you are going to use a cleaner product kenny i would recommend trying the product cataclean since its made for cleaning catalytic converters and 02 sensors according to the bottle labelling
Hope you daughter enjoys her new career.
Put in some good fuel and a can of snake oil and give it an Italian tune-up. It worked for me past the test no problem
Good day brother Kenny, sorry to hear that you were sick but I'm glad to now that you are getting better. If I were you, I would try a bottle of "Guaranteed to Pass Emissions" gasoline additive and I would try to add it to only 5 or 6 gallons of gasoline in the tank thus creating the greatest concentration possible . I would then run the "piss' out of the truck or "drive it like you stole it" type of driving with most miles preferably being highway miles. If that didn't clear the check engine light and the codes, then I would change the O2 sensors only and go from there.
I've had sensors go the fritz due to corrosion on the connecters . unplugged them , cleaned ,some new dielectric grease and codes went away .
I would just get black electrical tape and put a piece over the engine light.LOL Actually I have never messed with this because we dont test in my area and we just ram a steel rod through it if its clogged or if you got money put a replacement pipe in. I live in rural farm country.
Buddy had bought a BMW that the previous owners mechanic said it needed new cats. The car had been lightly driven... many short 10 mile trips over 2 years. We ran it hard... several 100 mile trips to heat the cats up really hot and the cat codes went away. They were just clogged from too many short trips.
i did a can of acetone on a 2000 gmc and it worked cleaned the cat and code went away in a week
i had nothing to lose . after i commented i remember i had the exhaust of and poured acetone into the cat lots soot came out and i added a can to gas tank .
As a mechanic I'd jam 2 universal cats on it even though it's a Chrysler POS they don't have a good name in OZ more commonly referenced as junk.
12:21 I'd buy a gallon of laquer thinner and run it through the gas tank. Look for change. Maybe it will clean something out. Most cat cleaners are just heavy acetone concentrations. CataClean comes to mind. I want it to work, makes exhaust smell like laundry detergent but not sure it works....
I've tried cat cleaners I think what they do is just wash the shut off the catalyst so it's more efficient I've seen them work okay in short-term. I'm a registered mechanic so I don't want to say what else I would do. But generally If I Saw those graphs don't look good to me I live in the communist state of California and if the rear 02 is fluctuating above 500 At 2500 RPM For more than a second or 2 it's gonna flag P0420 or PO430 codes When cats are starting to get weak sometimes the codes will come and go depending on a long freeway drive. Temp probe if that cat's not getting over 1800° it ain't working. I have on my own vehicle put a rosebud on a torch with the car running and dump some sea foam through to clean cats. It worked to get it through emissions once light came back on in like 50 miles. We all as professional know the dirty tricks they're all over UA-cam. Some are impressive.
Put you an extension on the o2 sensor. My 04 ram 4.7 same color as yours did this to me in Delaware.
We don't have emission inspections in Wv but if your car had a Cadillac Converter from the factory it has to have one to pass a state inspection anymore used to not matter now it does.
Get well soon! Just blame it on Friday the 13th.
Hey don't worry about check engine light, clear it,run vehicle for 20 mins on highway at about 45 to 50 mph,then do inspection immediately n it will pass,everytime.
Some times replacing the o2 sensors will help
Got a p0240 bank 1 s2 on 2012 acadia with 104ooo miles tried cat cleaner 2 different brands thru the fuel system no luck.next i will try sea foan spray into the upstream 02 senser holes and let it sit for a while.already replaced 02 sensors
Mr Kenny something has been going around here in Tennessee to. Been lucky hadn't caught it myself. 😅 Good luck on your trip to SC .😅
Bad ground on the wipers and on my 92 s10, the check engine light was on so long that the bulb went out in missouri 96 and newer got emissions tested that was in 02
Looked fouled to me! Anti-Fouler might clear 'er right up😉
Adjust the intern wiper to the most frequent range.
Why does the wiper washer have to go through the Canbus. Keep it simple like my 2000 Sienna.
cataclean does work well used it on an Impala, 160,000 miles the P0420 code went away
Kenny, they KNOW it's not raining there.
I would try the cat cleaner first just to see what happens I own a older 2006 explorer and I am having the same problem thinking about trying the cat cleaner for right now can’t afford to replace a cat right now but we don’t have inspections in the southern part of ILL they do way up north but not down here just saying it’s worth a chance to see it is does work never had to try it myself.
Your sensors are working and I saw mimicking activity, which leads me to believe {assuming the substrate is still in the cats} that the cats are sooted up. If there is no power loss, a back pressure test is not necessary. Try a cat cleaner and if that doesn't work, remove them where you can wash them out. An acidic liquid such as lemon juice will help in that process.
The wiper issue is likely carbonized tracks inside the motor. Easy repair.
O2 spacers are illegal in most states. That’s one reason why they look under with a mirror… and to see you have cats under there. They also only mask the problem. The test center sniffers will still pick up the imbalance and you will still fail. Best to fix the actual problem.
If the vehicle is in good shape,well worth fixing it.They say pouring in acetone cleans the catalytic converters
On my Suzuki SX4, it has p0420 codes and i noticed Cataclean works for a while (not so much the other products) or driving it harder to heat the cat up, but it comes back. I think its due to my oil burning at start up (suspecting Valve Stem Seals?) its been happening for 50k miles according to the previous owner, but not sure how long the oil burning is. But assuming Cat code is coming up because of inefficiency due to being dirty, and if Cataclean IS cleaning it and the cause of why the code goes away, This truck might be similar, and if its not burning oil or damaged, it might be long lasting
Sadly my case is not the same.
Scotty Kilmer has a video about n checking exhaust pressure at sensor one- before the cat. Just tells you if the cat is clogged. I think any more than a couple of pounds is too high. But then why would the downstream sensor be oscillating? Broken media inside the cat?
With both being bad, I would think they were dirty. You need to try a rev up tuneup and maybe a cat cleaner. Then maybe install some defoulers. The engine issues you had could have clogged up the cats or sensors.
Try a spacer on the O2 sensor and hope it doesn't set a slow response code, replace the dead cats, or move. I'm glad I don't live in a county here in GA that requires emissions certification because it's a money grabbing gimmick.
Strongly agree. Emissions tests are a snapshot in time. In the ATL area of GA, emissions tests are required. Never mind there are thousands of cars a day driving all over and through the ATL metro area by people whose cars aren’t required to be inspected because they don’t live there.
02 spacers are illegal in some states and the testing center will still pick up issues in the exhaust.
Check your state's rules on emissions testing older vehicles with CEL on. My wife's 08 outback had the P420 code but still passed emissions. Age of vehicle matters if CEL is an automatic fail or not here in Colorado.
It doesn't fix the problem but it does sometimes mask the problem good enough so the computer doesn't detect it. Try spark plug non foulers on the downstream sensor. It has worked for me for over 2yrs. They are only about $10 for a pack of two.
Every vehicle that came in the shop with cat. efficiency codes needed converters. If there is another way to get that code out I'd like to know even though I'm retired. Let us know Kenny.
Next year the truck is 20 years old and not subject to NC emissions inspections. You might check when the truck's entry into service date is. Plug defouler on the downstream sensors for this year and then after that who cares. Or just drive it expired like everyone else does in NC until it's 20 years old.
Put adapters on the O2 sensors.
Hi Kenny,you probably have covid ! I wound up getting a new after market cat,that didn't work,so we tryed a OEM CAT and the light went off.It seems only a OEM VOLVO cat would function.Volvo has a monopoly on there parts apparently. 2011 V70 VOLVO. And at 2500 dollars that hurt.What do you do ?Get a newer car ? I'm in Massachusetts where they do emissions.
Its obviously not clogged since you don't have any performance issues. Says to me (if the 02 sensor is accurate) that the CAT simply isn't working anymore. Short of replacing the CAT tossing some cleaner through it is your next best shot. If all you're after is getting it to pass emissions for this year that has a good chance of working for you. But you know the proper fix is to replace the CAT.
I have the same problem with my wipers on my Dakota
Following..i think i have a similar situation
OK! So are the wipers bought in from Citroen? They all have minds of their own!
As for the cats? Check for exhaust leaks and then bite the bullet with replacements.
Emissions testing in your county?
I have a brand new aftermarket (not California legal ) cat just sitting in my garage if all else fails. If you're interested.
@Sinisterwill1 Is it a generic or for an 2005 Dodge Ram?
@@WrenchingWithKennyoriginally picked up for my 03 S10. Bought two only needed one. Generic. I'll dig it out and take a pic and send measurements to see if you can use it. I had to weld on some fittings to fit my smaller exhaust. From what I remember thought I think it was a standard ECOII universal.
Kenny I want to replace my head lights with LED lamps on a 2013 Yukon. Pain to do it. What’s your opinion on this. And a good brand of LED’S. OR Branks to be fair. Thank you watch you all the time you are a worker. Not a UA-camr
It does not take much to trip a catalytic efficiency code (anything less than 95% can cause a code). That is ridiculous in my opinion.
1. Check the entire exhaust system for leaks etc.
2. Pull the O2 sensor after the CAT and clean or replace (I also add a spacer to offset the sensor).
3. There are all kinds of so-called cleaners and methods but only two seem to work (Techron on a regular basis, I add after every oil change 5,000 miles) and Seafoam SS14 Quick Acting Cleaner.
Special Note: Chemically, carbon is an extremely inert substance and highly resistant to acids and petroleum cleaners however if you choose to go the cleaner route you can soak the CAT in Varsol or Mineral Spirits. Sometimes that works.
I was thinking the same as you. Its kinda stupid that perhaps the cat is at something like 80 or 85 percent efficiency and it still trips the P0420 code. You have to spend big bucks just to gain back that 10 percent and pass inspection. My GF's car tripped that code at only about 30k miles. This is because my mother owned it and only drove it to the store and back twice a week and then it sat in the garage. So, I figure it kinda coated with carbon or whatever. I put in the spacer and where we live we do not have inspections.
I have never had any luck with those cleaners. It may clear the code for a short period but it always returns. Hopefully they do not look under the car and Kenny can get away with a spacer on the cats and the cats are not restricted.
Cataclean seems to work for me (for a while) i suspect oil burning is clogging it up again
I had to laugh a little bit when you said you weren't worried about the washer level sensor. For years we were certified to do inhouse emissions testing on the city fleet, but then the higher ups decided to send everything to the state facilities (and pay the fees). Why? Who knows! We would constantly get vehicles back that had failed testing because the low wiper fluid warning light was on.
Legislative overreach
O2 sensor extender?
That just masks the problem. May still fail emissions when they test it.
Door locks wiring loom in the hinge area is worn through and rubbing
Take the 02 sensor out & start vehicle up & see how it blows out sensor hole or not.
Cataclean or 02 extenders
A quart of water in a spray bottle run motor at high rmp's and spray in the water in the intake with a operate temperature motor the water will steam the cat clean
With that kind of mileage, no doubt the engine is pushing a little oil through the cats.
A cleaner is the cheaper fix to try.
Let it run almost empty. I gal of Laqure thiner and SHELL hi test fill up. Worked for me
Do like the folks everywhere go without registration. The ticket is cheaper then cats and lol you may only get caught once 😂
On my car, the Bank 1 Sensor 1 voltage is always between like 2.9-3.3V to 6V, sits at 4 volts a lot.. What does that mean?
Cataclean or non foulers.
You ever know anyone who dealt in Boot leg inspection sticker's 😊
Get a can of cataclean or replace them😊
If it were my truck and it needed a cat id put in an aftermarket cat.
The Detroit axle stuff I have used on customer's cars but I use it with a grain of salt. I do not use it if the customer has a high demand for performance Such as driving on Dirt roads or heavy use. But it does have its Place on a older vehicle that runs well But it's not worth Putting 3500 dolours into suspension Parts alone Which is what a typical truck front end will cost. It's a customeris not intending On owning Is the vehicle or having The parts not last another 60000 Miles and the person just needs to drive it to get to work and back Detroit axle parts seem to be okay not great. But good Option for someone on a small budget to keep their vehicle on the road It has a mechanic that installs these incredibly cheap parts. Needs to let the customer know that these are cheap parts. As a conscienthis professional mechanic you have to give them the other options.i never had any problems with them. In my opinion they have their place
What would I do, new cats. Cut the old ones off and weld some universals on.
What was wrong with engine?
I live in a state that doesn't require emissions testing.
My Chevy keeps throwing po15B,,,
Cataclean will work for a while. Not a permanent fix by any means.
Hook a chain to it and use it as a boat anchor. Lol just kidding😂
Sounds like Covid Kenny. Hopefully you're vaccinated
Catclean additive to just pass inspection
If the cat is solid on inside and you can take off clean with dish soap and blow dry with air compressor. Another old school try is a gallon of laqeur thinner in ur gas tank
"None Ethanol Fuel" ? Run out of overdrive hard for 45 minutes. 😅
I'd check your cat with an infrared thermometer before and after the cat. See if it's doing its job. Ive never had much luck with cat mechanic in a can. If your not in a carb area and your cats boogered, after market.
2:000 "I can't get lucky lately". . . . .Buy her some flowers.
Dude, if you follow this channel at all, you wouldn’t have made that comment.
So a dirty cat wouldn’t give you readings like that downstream would it? Sounds more like it’s just broken inside. But I’m no diagnostician.
Wipers work because it isn't raining😅
Try a cleaner
I think you have no choice, but to replace your cats
Add a half gallon of acetone to a half tank of fuel, and drive it like you stole it. I have had that work numerous times.
I put a new cat in my car Solve the problem!
Save the Cats. Trump 2024.