P0420 Catalytic Converter Replacement (2004 Toyota Sienna) +188k miles

Bank 1 Catalytic Converter (2004 Sienna) amzn.to/3EflykU
This video is intended for entertainment purposes and personal documentation. My goal is help guide others when it comes to basic car services outlining my experiences. If you are not familiar with basic tools and usage techniques, or you are unsure if you can safely prepare a vehicle for service, I encourage you to review your car's owners manual and/or recruit the help of a friend or neighbor who can effectively fill the gap.
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[@interred_potato]

glad to see im not the only one who starts the job with gloves on, then once they get torn up, just finishes without gloves and with bleeding fingers. love getting lube and grime in fresh cuts - hope it doesnt cause cancer lol

[@AaronLane-fx4ot]

Glad you made this. I'm about to do mine in my gravel driveway. I'm not looking forward to this, but you made it look simple enough. Should be easy to do

[@projectfixit]

Good luck! I must say, it was easier than I expected. It was a relief all bolts were accessible.

[@AaronLane-fx4ot]

@projectfixit Once I had my breaker bar, everything went smooth.

[@PeterHernandez-lg2eh]

Worst is if the bolts break off. I may be doing my son inlaw's 2004 Toyota sienna le. He just got the code for the 1st time and I cleared it if it comes back I will use chemicals , then replace o2 sensor then replace the catalytic converter last. Cheapest fix 1st. I just did a complete timing belt with all related components replacement after the timing belt failed. Got lucky no engine damage

[@PeterHernandez-lg2eh]

Check out the aftermarket exhaust company out of Canada. Good price and stainless steel

[@MariaGonzalez-ei1pv]

😂😂it hunting me everyday ...just replace my 02 toyota camry le 2.4 4cylinder front exhaust catalytic converter bought a oem $720 dealership. Code ain't been back pass smog Feb 2024.😂p0420 can drive a person crazy.grest video.

[@leepatterson4435]

thanks, very helpful video. I'm working through this cat replacement right now and appreciate the detail you showed in your video. Loved the engine revs with the cat off. :)

[@projectfixit]

Thanks! Good luck with the replacement. I was super surprised how easy it was.

[@americawalk1154]

For 2005 sienna with 133k miles. Do you know what mileage catalytic converter will fail??

[@gijane880]

Great post

[@projectfixit]

Thanks!

[@kenyu270]

Hi I have a question? when replacing the catalytic converter, Is the original isolation aluminum plate installed inside? Is it necessary to install it? Thanks

[@allenpardon8211]

With the manifold down, can you reach the plugs to change before u put it back together

[@neuermz1850]

Do you need to add any gasket maker or is that enough

[@SenorSerpico]

Thanks man! I got this one to do next. Did the cat last? No problems? I replaced bank 2 and it went out again.

[@projectfixit]

As far as I know, the cat is still performing well. I will check with the owner to see if any O2 codes have reoccurred.

[@ritukochhar7025]

2004 manfold exhaust is it same 2008 yes or no plz explain

[@wilmeravila4269]

En qué lugar de TX vives amigo

[@danielcardenas1750]

Hello I’m Tomas I have a question.where did you buy the catalytic converter I have a 2004 Toyota Sienna catalytic converter bank 1 is bad

[@projectfixit]

I bought mine from Amazon. See link below.
Bank 1 Catalytic Converter (2004 Sienna) amzn.to/3EflykU

[@AntuanJoynershm]

​@Project Fix-It Are you willing to make some honest money? I need help.

[@bhadz100]

Hello, can you access the top bolts of the manifold if you remove the cowel?

[@ryanmckenziegilbert4950]

Did you code go off

[@projectfixit]

Yes. So far so good.

[@mariosanchez-sj9yv]

Just change the plugs behind the engine that's how i fix PO430 AND 420

[@mafia3783]

I just get same problems with what you had P0420 & P0430, which plugs did you replaced?

[@PeterHernandez-lg2eh]

Start with the cheapest option 1st. Chemicals, o2 sensors, then catalytic converter replacement

[@fugitivetattoo]

​@PeterHernandez-lg2eh what do you mean "chemicals"?