Signs & Symptoms of a Bad Catalytic Converter!
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- Опубликовано: 8 июл 2024
- Curious about the role of a catalytic converter in your vehicle's exhaust system? In today’s video, Jake dives deep into the world of catalytic converters, unraveling their function, common symptoms of failure, underlying causes, and effective fixes. Whether you're experiencing sluggish performance or suspect a catalytic converter issue, this comprehensive guide has you covered. The purpose of a catalytic converter in a vehicle's exhaust system is to reduce harmful emissions produced during the combustion process. Specifically, catalytic converters are designed to convert pollutants, such as carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx), into less harmful substances, primarily carbon dioxide (CO2) and water vapor, through a series of chemical reactions.
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00:24 - What is a Catalytic Converter & What is its Purpose?
01:04 - Causes of Catalytic Converter Failure
03:19 - Signs & Symptoms of a Bad Catalytic Converter
05:06 - How to Diagnose a Bad Catalytic Converter
06:12 - First (& Easiest) Test to Check for Catalytic Converter Failure
06:46 - Second Test to Check for Catalytic Converter Failure
07:23 - Third Test to Check for Catalytic Converter Failure
08:45 - Replacement Options for a Bad Catalytic Converter 
Авто/Мото
Signs of a bad cat: Your local crackhead took it off your Prius
K - Definitely a possibility. XD
The purpose of the catalytic converter is not to reduce carbon DIoxide (CO2). In fact if the catalytic converter works, the compounds that it is intended to reduce (mainly carbon MONoxide and hydrocarbons are converted to carbon dioxide, so this gas actually increases in the exhaust.
K - Yes, we misspoke. Thanks for sharing this insight!
Thank you. Good information. Kind regards.
L - Thanks for the feedback! We hope it was helpful.
Thanks ❤, my car is currently in the shop and i already suspected this issue,took it to my main mechanic first after the engine light came on,then he showed me the code of the catalytic,so since i got the work done at another shop,i drove my behind straight to them and let them know...we shall see if they try and tack on more stuff LOL😅🙄🙆🏾♀️
T - Hope they don't screw you over! Keep us updated.
Would just test driving with the forward O2 sensor removed stop or noticeably improve the misfire and acceleration low power issue since a lot of the back pressure is a bit relieved? ( Assuming a clogged cat is the problem}
H - We have a video on O2 Sensors that we think would be helpful here: ruclips.net/video/hpqXLGAE4Xo/видео.html
I have a 2016 Hyundai Tucson and it was drinking to much oil. Engine had to be replaced. Two days later engine light came on and I was told its the catalytic converter. Probably from the bad engine that damage the cat. I tried Cataclean and engine light turned off for a couple of days but turn back on. It runs fine and has a lot of power. I can't afford 3500 to get my catalytic converter replace. I trying to find an affordable place but some mechanics are scandalous. I dont know what to do. Can you give me some tips on what I should do?
Hi Jake, nice explanation on the catalytic converter. Regarding the car's performance if the Catalytic Converter is bad, can one of the symptoms be that the car shuts down while driving if the AC is turned on?
2013 Toyota Camry is throwing out a p2109 throttle body code. The symptoms are loss of power but gradually catches speed. Also burning oil more than usual. Symptoms all point to clogged catalytic converter. Will it throw that code (p2109) as well not the usual p0420 or O2 sensor code. Do you recommend changing throttle body first or Catalytic converter?
I would try cleaning the throttle body first and seeing if that does anything, but agreed that sounds a lot more like a cat.
Its a toyota it already has loss of power straight out of the factory 😂😂
XD
What about a nocking sound from underneath the engine?
L - We have a whole video dedicated to engine knock, we hope this helps in your research: ruclips.net/video/GeA4o7Yo_q4/видео.html
Great explanation and sugestions
A - Thanks for the feedback! We hope it was helpful.
I had my 2019 GMC Sierra worked on by GMC. a lifter was bad causing a ticking noise. They replaced the lifter and a bent push rod. All 8 lifters were replaced and pushrods. I drove it about 20 miles and check engine light came on. Took it back to GMC they said its a bad Cat on bank 2 (same side the initial lifter was bad). is this just a coincidence or could they have done something by mistake
Definitely seems suspect but I don't think a lifter replacement would create any issues with the cat. It could also just be bad O2 sensor and not the cat itself - I wouldn't go paying for an expensive new cat without confirming the cat is clogged or going bad first..
What converter would you recommend because I buy this aftermarket sound like a motorcycle do you think would be better to buy an original converter? I got all those symptoms
C - What vehicle do you have?
Rotten egg smells could be caused by the MAF sensor.
A - Certainly possible.
Is this really common on a 2007 gmc yukon and if so can I take off the o2 sensor? Literally doesn't pick up speed..
J - Wouldn't say it's really common, but it can happen. We have a video on vehicles losing power that we think might be helpful: ruclips.net/video/ipjYLPJgpq8/видео.html
My granddaughter has 2015 Sentra that will not go over 40 and engine will die at stop sign. Advance Auto test said cat converter code showed up. She took to a mechanic who she didn’t know and they said transmission was bad. Any thoughts on next step for her?
Deff take to another mechanic and get another opinion the sounds a bad trans makes are way different from the sounds a bad cat makes the stalling and not going over 40 certainly sounds like your cat I had this issue on my impala except my got so bad that I couldn’t accelerate past 20! So sounds like she could get away with maybe running a bottle of cataclean in the gas tank and see ir that helps clean out the cat at all then if that doesn’t work I’d take to another shop they shouldn’t charge you more then about 500-600 for a cat replacement on that model car
I'll echo what was said by thatstoner (lol). Try a different mechanic - it could be the transmission but that's very unlikely - a clogged cat would be much more likely
@@thatstonerr7738 I took the car to a trusted mechanic and it had 4 transmission faults, pollution control faults. They recommended she trade it in ASAP while it still moves.
R - Not a bad call unfortunately.
I am not exhibiting any signs of a bad cat other than the temperature before the cat is hotter than after the cat. No power loss, o2 sensors seem to be working fine, I don't think I have any exhaust leak. Recently replaced cats but P0420 and 0430 came back. Any idea what else I should check for?
I have a 2014 Sonata. I know all about the junk motors cause mine is junk. With all the same symptoms of a clogged cat...could this possibly be the issue? When it misfires, I hear the lifters clicking and burnt oil blows out the exhaust?
F - Certainly could be! Any engine codes?
@@8020MediaInitially, but the mechanic that works for the place I bought it, cleared it. It's no longer coming on
F - Well that's good! Hopefully it stays off.
Is there any way to clean it
J - you can, but may not always be the best solution.
1990 car with stock cats should I replace ?
I - You should check them beforehand, if possible. Typically they aren't cheap. Are you having any issues? or just suspecting they are bad?
@@8020Media I was smelling like a sulfur smell when my exhaust was on I pulled the pipes, and then I sunk the cats in laundry detergent and then clean them with brake parts cleaner. Afterwards I put a leaf blower on the pipe air was flowing right through them.
L - How'd it turn out? Sounds like an interesting technique.
Be careful who replaces the part. My catalytic converter was stolen off an 2005 Tundra happens to have 2 Took it to BIG O TIRE shop in Bakersfield Ca they sublet the work to BOBS Mufflers picked up my truck when it was ready they forgot invoice from BOBS in my truck for $1800.00. Big O Tire charged me $4800.00 File complaint with BAR they investigated the only thing they did wrong was not disclosing the job was being sublet to BOBS. I got stuck with the bill so dont take car to a shop that is not a MUFFLER SHOP. My friend did worst she was screwed by a smog shop $5400.00 to replace them on a JEEP.
What about a loud start up and it sounds normal after a while
B - Do you have an aftermarket exhaust?
@@8020Mediayup they got my cat 3 months ago they told me an aftermarket piece can last me a year for now
Stole my cat smh
B - Damn..
Is the catalytic converter can also cause the engine oil burning faster than usual?
P - It is possible.
Bro I can’t tell someone please help me Evertime my truck has been sittin for a min and the exhaust cools off I’ll hear a lot of rattling coming from the middle of the exhaust close to my cats but after a it warms up and I drive away it doesn’t do it anymore
P - So it rattles at idle? Have you checked if the piping is just hitting each other?
@@8020Media no I’ve looked at it my cats are rattling from the inside I just got back home and now my truck is losing power and doesn’t wanna go up hills I need help
P - Sounds like a problem with your catalytic converter than. It could be clogged.
My hhr rattles too at the cat and it also sometimes has a tough time starting
A - You could be experiencing the same thing.
I think you meant it is supposed to reduce carbon monoxide and nitrogen oxide (NOx) gases, not carbon dioxide.
S - yes, thanks.
I also was hearing a "ticking" sound when i opened my hood💀💀💀👀
T - Keep us updated here!