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How To Diagnose An Exhaust Restriction (Blocked Catalytic Converter) 

Gerard Burke
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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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Thanks to everyone who watches and likes my videos, I appreciate you all so much.
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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.

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7 окт 2024

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Комментарии : 49   
@georgekounelis2723
@georgekounelis2723 2 года назад
Thank you for your help, I wish I found this earlier. My van is back too full power with no mis,
@kennedysgarage3281
@kennedysgarage3281 2 года назад
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 🙏🙏👍
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 2 года назад
Scanner Danner is a legend of the automotive diagnostic game. A fountain of knowledge! Thanks for watching, very much appreciated 💪💪
@the_retired_mechanic
@the_retired_mechanic 2 года назад
Some very interesting and useful information in this video. Thank you once again for taking the time to make it
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 2 года назад
Thanks for watching, very much appreciated 🙏🙏
@robertboyd321
@robertboyd321 Год назад
Thanks, but my catalytic converter was so clogged up that I think it must have had a possum living in it
@Liamautomechanic
@Liamautomechanic 2 года назад
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.
@timothycochrane364
@timothycochrane364 Год назад
Agreed my aftermarket Mani-Cat failed in less than a year. Manifold split!!
@STiHigh1
@STiHigh1 2 года назад
Thank you for a well presented informative video.
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 2 года назад
Thanks Terry
@STiHigh1
@STiHigh1 2 года назад
@@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! 😄
@patkelly7999
@patkelly7999 2 года назад
Great work as always Gerard👌👍🙏💪🙂
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 2 года назад
Thanks Pat 🙏🙏🤗
@jamesdean7574
@jamesdean7574 Год назад
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
@MiracleMAX
@MiracleMAX 2 года назад
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! 😉
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 2 года назад
Thanks mate, appreciate it buddy. Happy Christmas 🎄🤶🙏🎅
@MiracleMAX
@MiracleMAX 2 года назад
@@GerardBurkeBurkesGarage I hope you have a good break with your family & friends. We'll have to catch up at some point 😉
@burnnotice5086
@burnnotice5086 Год назад
A clogged cat will cause exhaust manifold leak . When my cat was partially clogged it did . From the back pressure .
@nigelhumphreysfsuk2833
@nigelhumphreysfsuk2833 2 года назад
great tips thanks
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 2 года назад
Cheers Nigel, thank you 🙏🙏
@vunit8213
@vunit8213 2 года назад
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?
@robert-h2x
@robert-h2x 6 месяцев назад
same on our mazda cx 7
@mahmoudhawli3235
@mahmoudhawli3235 Месяц назад
Thx for your information ❤❤
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 18 дней назад
👌👌🙏
@maxmusterman6030
@maxmusterman6030 3 месяца назад
thanks alot dude!
@georgekounelis2723
@georgekounelis2723 2 года назад
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 .
@georgekounelis2723
@georgekounelis2723 2 года назад
also changed fuel pump and filter.
@PichuPeekaboo
@PichuPeekaboo 3 месяца назад
@@georgekounelis2723 I basically just did the same steps, and the loss of power is still there
@asteriosmitsimponas8085
@asteriosmitsimponas8085 Месяц назад
I have the same symptoms with w211 Mercedes 2008 petrol-gas …..
@dela4994
@dela4994 2 года назад
Thanks Gerard great video once again.
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 2 года назад
Thank you, I really appreciate you watching and taking the time to comment 🙏🙏
@florenbaron7111
@florenbaron7111 9 месяцев назад
Will removing the oxygen censors or opening up the bults cause error codes?
@Smooth00E
@Smooth00E Год назад
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?
@burnnotice5086
@burnnotice5086 Год назад
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 .
@gorkman5697
@gorkman5697 Год назад
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
@niallcosgrove5596
@niallcosgrove5596 2 года назад
Great video. Good information ☘️
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 2 года назад
Cheers Niall 🍻🙏👌
@petar443
@petar443 2 года назад
Where did you get that nice aftermarket manifold-cat ? I guess the price is nice. Does the company got a website to check? 👍
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 2 года назад
We were supplied it through Repco trade account, I am not sure of the exact branding or where it originated from.
@SabretoothBarnacle
@SabretoothBarnacle 2 года назад
Can the same approach with pre/post cat temperatures be applied to DPFs?
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 2 года назад
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 🙏🙏
@phamuchuynguyen7921
@phamuchuynguyen7921 Год назад
@Liamautomechanic
@Liamautomechanic 2 года назад
Always check oil consumption as to why cat was blocked in the first place.
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 2 года назад
100% Liam, I metioned that in my other Cat efficency video, a good point to bring up 👍👌💪
@MechaniclifeJDM
@MechaniclifeJDM 2 года назад
Aftermarket cat = aftermarket part installation labor rate
@MariaGonzalez-ei1pv
@MariaGonzalez-ei1pv Год назад
Wow no check engine light?🤔🤔
@lancecooper4646
@lancecooper4646 2 года назад
8:35 SP tools 👍
@GerardBurkeBurkesGarage
@GerardBurkeBurkesGarage 2 года назад
🧐😁
@queenqutie9236
@queenqutie9236 Год назад
Drill a hole in it and spray brake cleaner in it then weld the hole back up.
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