How To Diagnose An Exhaust Restriction (Blocked Catalytic Converter)
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- Опубліковано 6 вер 2024
- In this video I show the step by step process in how I figured out that a Hyundai 2.4 imax / iload had an exhaust restriction due to a clogged catalytic converter (melted cat converter)
I show POV footage as I work through the diagnostic process in real time.
If you follow these simple steps you can easily diagnose if you have a blocked exhaust issue that needs fixing on your vehicle.
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Disclaimer:
GerardBurke is a qualified motor technician who has completed modules & courses in manual handling and all aspects of workshop safety. These videos are not intended to be used by anyone who is not trained and or qualified to carry them out.
Due to factors beyond the control of GerardBurke, I cannot guarantee against improper use or unauthorized modifications of this information. GerardBurke assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. GerardBurke recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of GerardBurke, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not GerardBurke.
Thanks Gerard, each and every one of us invested mechanic’s have to say a big thank you to Scanner Danner for his education on petrol engines. And fair play to you for this brush up on his kinda thoughts, excellent video good man Ger 🙏🙏👍
Scanner Danner is a legend of the automotive diagnostic game. A fountain of knowledge!
Thanks for watching, very much appreciated 💪💪
Thank you for your help, I wish I found this earlier. My van is back too full power with no mis,
Some very interesting and useful information in this video. Thank you once again for taking the time to make it
Thanks for watching, very much appreciated 🙏🙏
Thanks, but my catalytic converter was so clogged up that I think it must have had a possum living in it
I came across same problem on a 1.4 vw golf. When we did the repair we found the valve stem oil seals and piston rings were worn oil entering exhaust system blocking the cat so head and sump off new rings and valve stem oil seals. To cure the problem.
A clogged cat will cause exhaust manifold leak . When my cat was partially clogged it did . From the back pressure .
Agreed my aftermarket Mani-Cat failed in less than a year. Manifold split!!
Thank you for a well presented informative video.
Thanks Terry
@@GerardBurkeBurkesGarage. I liked the two hand 'tools' you used in this video (Fluke 65 IR thermometer and Oiiwak 'borescope') so after checking with the Minister for Finance (wifey) I bought them. Fluke 65's are no longer available new but I got a used one in excellent condition. Well, you can never have too many tools! 😄
Great work as always Gerard👌👍🙏💪🙂
Thanks Pat 🙏🙏🤗
at 5:11 you mention if the mix is lean, can you do a small video explaining on that and what that means. i would like to understand that part better if you have the time
thanks for the great video by the way
I have a 2013 gmc sierra 2500 HD with 3 cats bank1 bank 2 and one in middle before muffler. I put a bore snake camera inside the 02 sensor hole on bank 1 and sure as suspected my driver side is completely clogged and busted. However my other 2 look like new, what would cause only one side to be this bad? And would this explain why I kept getting all my misfires on the 1-3-5-7 cylinders? Or is the engine misfiring on those cylinders causing this cat to clog?
same on our mazda cx 7
Great series of checks mate.
Put them all together and you have a sure fire diagnostic path. It's good to do the testing post repair as well as you have, to confirm the repair, rather than just a basic road test.
Well done! 😉
Thanks mate, appreciate it buddy.
Happy Christmas 🎄🤶🙏🎅
@@GerardBurkeBurkesGarage I hope you have a good break with your family & friends.
We'll have to catch up at some point 😉
Thx for your information ❤❤
Hi great video did you have any mis fire before the repair. I have changed everything spark plugs coils maf crank angle sensor to no avail. Lose of power and very slow revs to 4000rpm then it misfires and revs start to drop rpm
.
also changed fuel pump and filter.
@@georgekounelis2723 I basically just did the same steps, and the loss of power is still there
I have the same symptoms with w211 Mercedes 2008 petrol-gas …..
comparing to your car with my toyota yaris cross it is double slower and louder
especially when there are more than 2 people in the car
my car has loud exaust when the car gets hot under the sun also
what might be the problem
great tips thanks
Cheers Nigel, thank you 🙏🙏
Will removing the oxygen censors or opening up the bults cause error codes?
I have a 2011 ford escape xlt
and my car was barely moving, and I heard a loud pop sound follow by a bad odor and the car started driving normal again. What do you think is the problem?
This happened to me yesterday . It's the insides of the cat. The catalytic converter now is just a shell . Mine was partially plugged and the insides blew out .
Thanks Gerard great video once again.
Thank you, I really appreciate you watching and taking the time to comment 🙏🙏
thanks alot dude!
Where did you get that nice aftermarket manifold-cat ? I guess the price is nice. Does the company got a website to check? 👍
We were supplied it through Repco trade account, I am not sure of the exact branding or where it originated from.
Can the same approach with pre/post cat temperatures be applied to DPFs?
No not a test that is used on DPF diagnosing, the dpf is a soot accumulation then burn off, this means we have temperatures of 600 degrees at times of passive or forced regen.
Ways to check them. Is pressure checks and soot accumulation % or amount on the scan tool.
I have a video with information related to DPF's on my channel as well.
Thanks for watching 🙏🙏
Great video. Good information ☘️
Cheers Niall 🍻🙏👌
Always check oil consumption as to why cat was blocked in the first place.
100% Liam, I metioned that in my other Cat efficency video, a good point to bring up 👍👌💪
❤
8:35 SP tools 👍
🧐😁
Aftermarket cat = aftermarket part installation labor rate
Wow no check engine light?🤔🤔
Drill a hole in it and spray brake cleaner in it then weld the hole back up.