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FishinDVM

Maintenance Stuff / Valve Cleaning CRC GDI IVD or Manual (at this point)?

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Hey guys, 2014 GMC SRT A/T 5.3... I havent had many of the listed/common problems yet... with the flowing exceptions being as follows: Paint adhesion sucks on these trucks and I dont do auto carwash places because of it (chips). My "leather" seats crack and chip as well. I have seen a "service stabitrak" once or twice. And lastly, my AC condenser has a leak at the EXACT SAME SPOT AS EVERYONE ELSES (clearly this is a problem WIDESPREAD THAT GM SHOULD BE ADMITTING and it pisses me off). But other than that, nothing horrible with engine, trans, vibration, etc...

 

I drive a lot, I'm just over 80k miles now. I have changed transmission fluid, air filters, oil filters, oil changes with Mobil 1 full synthetic as regularly recommended, differential/transfer case fluid change, new tires/brakes/rotors, Techron fuel inj cleaner in gas, etc/maybe a couple others?... 

 

What I have NOT done... and dont attack me too much over this... apparently I should have been doing some MAF, throttle body, valve care every 10k-20k miles. I HAVE NOT. So... this weekend... I'm due for another oil change. Prior to, I'm going to do the MAF and throttle body.

 

MY QUESTION is what to do about the valve build up AT THIS POINT???... being that I just cleared 80,000 miles and probably have a significant amount. Is a manual cleaning my only option now??? I feel like CRC GDI IVD treatment would possibly cause me problems being this late??? Do I risk cat damage this late??? I guess I'm asking what would you be doing other than telling my you would have done it like 4 to 7 times by now? Thank you. Chris.

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Here is where the Catch Can believers will eat you alive!  LOL

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I am a strong believer in preventative maintenance. I am also picky about doing fluid services myself so I know exactly what fluids are being used. With that being said, at this point what I would do is a manual cleaning. I bought my truck at just under 9,000 miles and after researching on here, by 11,000 miles I installed a catch can and did a CRC GDI service. I intend on doing a CRC every 10,000 miles. At this point with your truck, After a manual cleaning is done, I would start to use CRC. If you use it before it can loosen larger pieces of buildup and throw a code and clog a cat.   

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for valve build up your looking at a 4hr home job.. 30 minutes per port if your experienced, pull your manifold and get a HArbor frieght sand blaster, in conjuction with a shop vac. dirty work!

 

you might as well upgrade the manifold and throttle body to the 6.2L  since your there...

Edited by flyingfool

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1 hour ago, FishinDVM said:

Hey guys, 2014 GMC SRT A/T 5.3... I havent had many of the listed/common problems yet... with the flowing exceptions being as follows: Paint adhesion sucks on these trucks and I dont do auto carwash places because of it (chips). My "leather" seats crack and chip as well. I have seen a "service stabitrak" once or twice. And lastly, my AC condenser has a leak at the EXACT SAME SPOT AS EVERYONE ELSES (clearly this is a problem WIDESPREAD THAT GM SHOULD BE ADMITTING and it pisses me off). But other than that, nothing horrible with engine, trans, vibration, etc...

 

I drive a lot, I'm just over 80k miles now. I have changed transmission fluid, air filters, oil filters, oil changes with Mobil 1 full synthetic as regularly recommended, differential/transfer case fluid change, new tires/brakes/rotors, Techron fuel inj cleaner in gas, etc/maybe a couple others?... 

 

What I have NOT done... and dont attack me too much over this... apparently I should have been doing some MAF, throttle body, valve care every 10k-20k miles. I HAVE NOT. So... this weekend... I'm due for another oil change. Prior to, I'm going to do the MAF and throttle body.

 

MY QUESTION is what to do about the valve build up AT THIS POINT???... being that I just cleared 80,000 miles and probably have a significant amount. Is a manual cleaning my only option now??? I feel like CRC GDI IVD treatment would possibly cause me problems being this late??? Do I risk cat damage this late??? I guess I'm asking what would you be doing other than telling my you would have done it like 4 to 7 times by now? Thank you. Chris.

Never mind all the hard labor son!  Go to reputable auto shop and get the BG-GDI Induction done that simple!  It's a two part system and from throttle body down everything gets as clean as you can get without tearing into it!  The other part goes directly into your fuel system at top of engine at connection prior to the High Pressure pump.  Sometimes they call it 3part and that is fine they will dump a can into gas tank....But for what your looking for do the BG-GDI Induction service.  No, it will not foul your cats blow smoke out the tail pipe like SEAFOAM.  I use BG-products extensively on GDI vehicles and would not recommend anything else. 

 

I myself am coming up on 80K too and will be doing exact setup.  40-50K and your good to go costs 225.00 is maybe more or less somewhat?

Edited by mookdoc6
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Any chance anyone has taken a look at the back of the valves to see how bad they are?  If you have did you do a before and after picture?  Just curious as to how bad the build up is on these engines after a few miles get put on them. 

 

Also is there any noticeable performance/economy difference after the cleaning?    Just trying to get educated on this subject.  :)

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Never mind all the hard labor son!  Go to reputable auto shop and get the BG-GDI Induction done that simple!  It's a two part system and from throttle body down everything gets as clean as you can get without tearing into it!  The other part goes directly into your fuel system at top of engine at connection prior to the High Pressure pump.  Sometimes they call it 3part and that is fine they will dump a can into gas tank....But for what your looking for do the BG-GDI Induction service.  No, it will not foul your cats blow smoke out the tail pipe like SEAFOAM.  I use BG-products extensively on GDI vehicles and would not recommend anything else. 
 
I myself am coming up on 80K too and will be doing exact setup.  40-50K and your good to go costs 225.00 is maybe more or less somewhat?
Where do you find these products for sale?

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i think CRC makes a special chemical for Direct injection , you spray into the intake port, maybe let it soak for an hour and wash/vaccum it out, for all that trouble i would just use  walnut shells and sand blast it all..

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I thank you for posting the video, which I have watched. And I agree if I could go back in time I would have done this every 10 or 15k miles... but my question is NOW that I am at 80k I feel like this wouldnt be beneficial anymore? I feel as though I would have so much build up having NEVER done it that large pieces would come loose and cause me more problems than it's worth. So my options are do nothing, pay big bucks to have someone take it apart and manually clean, or find a good BG GDI shop where they soak the valves for 30 min or so each and scrape/vacuum out the build up. Right? Now that I think about it, I have running worse on my highway MPG than I ever recall... and no noticeable problems otherwise.

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6 hours ago, Coleman71 said:

I am a strong believer in preventative maintenance. I am also picky about doing fluid services myself so I know exactly what fluids are being used. With that being said, at this point what I would do is a manual cleaning. I bought my truck at just under 9,000 miles and after researching on here, by 11,000 miles I installed a catch can and did a CRC GDI service. I intend on doing a CRC every 10,000 miles. At this point with your truck, After a manual cleaning is done, I would start to use CRC. If you use it before it can loosen larger pieces of buildup and throw a code and clog a cat.   

I agree do the manual cleaning. I’m a catch can user but I’m not about to preach my beliefs on anyone. The reason I would NOT do the chemicals is because if you have significant build up and the chemical cleaner loosens up some chunks that get ingested into your cylinders you run the risk of damage or scoring or maybe by come stroke of luck it just passes through. Now I also agree with using the chemical cleaners on a regular basis but not until you get the manual cleaning done first. Like I said, I use a catch can but still going to do the chemical cleaning every 20K. This is just one opinion so take it with a grain of salt...speaking of salt, an hardened chunk of valve build up...the size of a grain of salt getting into your cylinder can cause damage...just sayin 👍

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1 hour ago, FishinDVM said:

I thank you for posting the video, which I have watched. And I agree if I could go back in time I would have done this every 10 or 15k miles... but my question is NOW that I am at 80k I feel like this wouldnt be beneficial anymore? I feel as though I would have so much build up having NEVER done it that large pieces would come loose and cause me more problems than it's worth. So my options are do nothing, pay big bucks to have someone take it apart and manually clean, or find a good BG GDI shop where they soak the valves for 30 min or so each and scrape/vacuum out the build up. Right? Now that I think about it, I have running worse on my highway MPG than I ever recall... and no noticeable problems otherwise.

Find the BG shop do it every 40-50k....Don't F around with these stupid over the counter products....Take it from somebody who had to to be told to USE these products on GDI's  Now, the family is on 3rd one and they have no issues!  They run great!

Edited by mookdoc6

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Buy a boroscope camera for your smart phone for $18 bucks, remove your throttle body when you decide to clean it and look at a few of your intake valves. If they don't look too bad, just start using the CDC intake cleaner. If they look bad? Have them manually cleaned and install a catch can. I think a camera should be able to get you a good look at a few on those valves...why guess?

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