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93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) #5446106 06/04/20 12:44 PM
Joined: Apr 2012
Posts: 12,508
wemay Offline OP
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NOT a GM ISSUE - this is a function of Direct injection and affects vehicles in varying degrees of severity.

you can find one of these videos on virtually every make that uses direct injection.



19 Passat Wolfsburg TSi, GTX Magnatec 5W-30 - CH11784
13 Santa Fe Sport 2.0T, GTX Magnatec 5W-30 - M1-104A
Re: 93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) [Re: wemay] #5446125 06/04/20 01:25 PM
Joined: Oct 2007
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dareo Offline
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Forget cleaning the heads i will just upgrade to ported heads when the time comes.


2019 VW Golf Alltrack, 2018 Regal TourX, 2016 GMC 1500 SLT 6.2, 2007 GMC Savana 6.6 Duramax
Re: 93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) [Re: wemay] #5446136 06/04/20 01:33 PM
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Kawiguy454 Offline
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This is why Ive added a catch can. And using oil that minimizes EGR vapors also helps.

Re: 93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) [Re: wemay] #5446141 06/04/20 01:44 PM
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wemay Offline OP
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There is evidence that nothing abates the buildup.


19 Passat Wolfsburg TSi, GTX Magnatec 5W-30 - CH11784
13 Santa Fe Sport 2.0T, GTX Magnatec 5W-30 - M1-104A
Re: 93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) [Re: wemay] #5446163 06/04/20 02:12 PM
Joined: Nov 2002
Posts: 33,461
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buster Offline
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Is he implying that the car was driven easy therefore has more buildup? Sounds that way. Very beginning of video.


2020 - Mazda CX-30 - Mobil 1 EP 0w20
2019 - Subaru Impreza - Dealer Oil
Re: 93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) [Re: buster] #5446170 06/04/20 02:31 PM
Joined: Apr 2012
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wemay Offline OP
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Yeah, I got that too. I've seen so many of these that it's hit or miss as to level of build up and if it causes drivability issues or not. No hard fast rule.


19 Passat Wolfsburg TSi, GTX Magnatec 5W-30 - CH11784
13 Santa Fe Sport 2.0T, GTX Magnatec 5W-30 - M1-104A
Re: 93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) [Re: wemay] #5446218 06/04/20 03:45 PM
Joined: Mar 2017
Posts: 33
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Sierrasik Offline
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I wouldnt let these guys get within 100 feet of my truck! All the crud that they brake loose but dont recover goes into the cylinder. Not ideal. ???

Re: 93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) [Re: wemay] #5446362 06/04/20 07:23 PM
Joined: Aug 2004
Posts: 2,685
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double vanos Offline
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My 2018 EB F150 has dual injection, sure hope it keeps that at bay. I know it stays in port injection in the lower power setting so maybe there is hope.


Sabine Schmitz is the Queen of the 'Ring; Svetlana Kapanina is the Queen of the SKIES...
Re: 93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) [Re: wemay] #5446470 06/04/20 10:00 PM
Joined: Jan 2006
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ammolab Offline
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Running that “solvent” into an electric shop vac can’t be hazardous or dumb in the least, right?


1998 Jeep Cherokee
2011 BMW R1200R
2005 Kaw Ninja 250
1994 Jeep Wrangler 2.5L
2016 Chevy SS Sport Sedan
Re: 93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) [Re: wemay] #5446512 06/04/20 11:17 PM
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dave1251 Offline
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Wemay. Thank you for posting.


make the inside of your engine oil cap white.
don't use.
Re: 93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) [Re: dave1251] #5446521 06/04/20 11:35 PM
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wemay Offline OP
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Originally Posted by dave1251
Wemay. Thank you for posting.

👍


19 Passat Wolfsburg TSi, GTX Magnatec 5W-30 - CH11784
13 Santa Fe Sport 2.0T, GTX Magnatec 5W-30 - M1-104A
Re: 93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) [Re: wemay] #5447634 06/06/20 11:52 AM
Joined: Aug 2003
Posts: 930
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nicholas Offline
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That's why I use CRC every 10 000kms.
We have 2 gdi short trippers.


2019 2.0T Santa Fe
2010 3.5 Santa Fe
Re: 93K mile GM 5.3 6.2 Carbon Cleaning Intake Valves...(from 4/28/20) [Re: wemay] #5447860 06/06/20 05:54 PM
Joined: Dec 2004
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Triple_Se7en Offline
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Thanks.
These are always interesting to view. Seems every mechanic does the cleaning and debris retrieval slightly differently.


Stay Safe - Stay Healthy
Happy July 4th
Pennzoil Ultra Platinum // Mobil-1 EP // Valvoline Synthetics



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