Anyone had a valve cleaning performed yet?

[Silverado-Hareek]

 

That's about 24000 miles on my 6.2... The intake valves look just fine.

 

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I don't know all of the parameters of your engine but there have been a bunch of other photos posted on this forum of dirty valves at very low mileage....even lower than yours.

 

 

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[2018GMC]

Food for thought - The new 2017 Ecoboost has DI AND Port fuel injection to combat the carbon buildup issues.

[Badass69]

I don't know all of the parameters of your engine but there have been a bunch of other photos posted on this forum of dirty valves at very low mileage....even lower than yours.

 

 

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Good for them haha. Point is that at the mileage the op is being fleeced at for a service if it was my truck... Well it's a waste of money. I broke mine in hard and subsequently hand in hand with good ring seal I don't have an oil slobbering disaster. Does the op? Pull the manifold and take a peek or fish a camera down the throttle body. He could do the old sea foam method if he is concerned... Which is in a likelihood all the dealer would do anyway. We are on our third run of these direct injected things at work since debut and they get about 80000 to 90000 miles in a year on a fleet of about 20 trucks I get to interact with. Not one yet has had a cleaning of any form and all run OK... Plus idle for hours on end. Is some performance over day one lost... Probably... Is it enough to warrant walnut blasting every 25000 miles or even ever... Probably not.

 

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Edited August 24, 2016 by 1994Vmax

[Silverado-Hareek]

Good for them haha. Point is that at the mileage the op is being fleeced at for a service if it was my truck... Well it's a waste of money. I broke mine in hard and subsequently hand in hand with good ring seal I don't have an oil slobbering disaster. Does the op? Pull the manifold and take a peek. He could do the old sea foam method if he is concerned... Which is in a likelihood all the dealer would do anyway.

 

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Something doesn't look right with your photo. There is all that black crud around your valve on the side walls of the intake port but the valve itself is white as snow. If you zoom in that white stuff looks like it's built up on your valves and has some thickness to it. Are you sure your valves are actually clean? I've never seen white valves like that before it almost looks like foam or emulsified oil.

 

 

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[Silverado-Hareek]

True you probably don't need walnut blasting every 25,000. BG products are advised to be used every 15k though to keep the valves clean and they cost less than a walnut cleaning. That seems to be a decent maintenance approach. It doesn't surprise me that these trucks don't have problems at 80 and 90k miles. It's been suspected that major issues will start showing up at high mileage. I want to see where these things are at 115k and 150k. It's the long term owner that suffers most not the short term owner.

 

 

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Edited August 24, 2016 by Silverado-Hareek

[Badass69]

Something doesn't look right with your photo. There is all that black crud around your valve on the side walls of the intake port but the valve itself is white as snow. If you zoom in that white stuff looks like it's built up on your valves and has some thickness to it. Are you sure your valves are actually clean? I've never seen white valves like that before it almost looks like foam or emulsified oil.

 

 

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It's dirt lol... I didn't pull this intake to show you people my valves specifically.... No one here is that special haha... But the opportunity arose so why not when I'm there. I pulled it to wash it out from a significant intake leak that filled it with dust... Including of course the cylinder head ports. It's what happens when somehow the stock airbox dents in around the tube clamp.

 

None the less yes the valves were clean and the buildup was so minimal it's nonexistent. The discoloration of the valve is nothing more than that... Discoloration. It wasn't white either... That's the camera flash causing that color you see. It's nothing like some of the messes people post on here.

 

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Edited August 24, 2016 by 1994Vmax

[Badass69]

True you probably don't need walnut blasting every 25,000. BG products are advised to be used every 15k though to keep the valves clean and they cost less than a walnut cleaning. That seems to be a decent maintenance approach. It doesn't surprise me that these trucks don't have problems at 80 and 90k miles. It's been suspected that major issues will start showing up at high mileage. I want to see where these things are at 115k and 150k. It's the long term owner that suffers most not the short term owner.

 

 

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True but at that point a good chunk of the original buyers quit caring... Because it's traded hands 3 times, warranty is long gone and it's life. If you want a 100000 mile plus vehicle that's on you and buyer beware I guess. Some guys buy them and drive them for decades.. Yes I know as on one truck I am doing that ( not this 2015 though in my case) ... But just as many or more do not drive beyond the warranty period. It will be a roll of the dice... Just like buying an afm equipped one since 07 is and hoping the rings aren't coked in the afm cylinders. But really... An intake service at 115000 miles isn't anything insane in ownership either.

 

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Edited August 24, 2016 by 1994Vmax

[Silverado-Hareek]

True but at that point a good chunk of the original buyers quit caring... Because it's traded hands 3 times, warranty is long gone and it's life. If you want a 100000 mile plus vehicle that's on you and buyer beware I guess. Some guys buy them and drive them for decades.. Yes I know as on one truck I am doing that ( not this 2015 though in my case) ... But just as many or more do not drive beyond the warranty period. It will be a roll of the dice... Just like buying an afm equipped one since 07 is and hoping the rings aren't coked in the afm cylinders. But really... An intake service at 115000 miles isn't anything insane in ownership either.

 

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Yeah I think the new reality is that buying modern vehicles means the maintenance and reliability game is changing. 15 or 20 years ago no one was worried about cleaning their valves. Now it's just part of owning a vehicle with high mileage I guess.

[CANUCK88]

On 8/23/2016 at 12:49 PM, m3n00b said:

Would love to hear about this!

Any updates on your experiment?