3.3TT How are Stinger owners cleaning their valves on their GDI engines?

[EClapp3]

I will try the CRC next time for sure! I'm not brand specific, I just know seafoam spray is the most common and easiest to find.

 

[vipeboy2000]

I will try the CRC next time for sure! I'm not brand specific, I just know seafoam spray is the most common and easiest to find.

I don't believe seafoam works very well for this application since it does not have PEA in it which is the best active ingredient to break the carbon deposits down from my research.

 

[EClapp3]

I don't believe seafoam works very well for this application since it does not have PEA in it which is the best active ingredient to break the carbon deposits down from my research.

This is what the spray is made for, and what I've been talking about. Not the regular stuff you pour into the gas tank. As far as which works better, I don't know for sure. But what I do know is that doing this on a regular basis is better than nothing at all. Whether you use CRC, seafoam spray, ATF/water mixture. Any sort of cleaner that you can get through there on a regular basis is better than nothing.

 

[vipeboy2000]

This is what the spray is made for, and what I've been talking about. Not the regular stuff you pour into the gas tank. As far as which works better, I don't know for sure. But what I do know is that doing this on a regular basis is better than nothing at all. Whether you use CRC, seafoam spray, ATF/water mixture. Any sort of cleaner that you can get through there on a regular basis is better than nothing.

ah yea i see that now, Seafoam claims the small amount of PEA in other products don't really do much as apparently you need a lot for it to be effective so it's most likely a how often you do it / before it gunks up type of deal. I've always used seafoam on our farm vehicles and it definitely helped out espescially with the low quality gas my parents got for their farm.

 

[EClapp3]

ah yea i see that now, Seafoam claims the small amount of PEA in other products don't really do much as apparently you need a lot for it to be effective so it's most likely a how often you do it / before it gunks up type of deal. I've always used seafoam on our farm vehicles and it definitely helped out espescially with the low quality gas my parents got for their farm.

Yeah, its definitely a how often you do it. Once you have lots of carbon will never come off unless you scrub/walnut blast it. Gotta keep up on it before it gets bad. Like keeping your AR-15 bolt clean, get the carbon off before it builds up and you dont have to pick at it.

 

[Eastcoaststinger]

I see that this was the first crc treatment you did, how often did you do the seafoam before? About to do the crc soon myself at 11k mile, from what i've seen the chemical treatment is most effective if done earlier and more frequently as waiting until it's noticeable means there is so much build up you pretty much have to walnut blast.

I usually do the spray every 10,000 miles and I used the seafoam previously but the biggest safeguard is the oil catch this should be the very first thing every stinger owner should put on their car

 

[Badal38257]

I know this thread is a bit old, but here goes. I bought my 2018 GT December of '20 with 33k on it. I have about 55k now. It came with a catch can, i only use premium 93 and full synth oil every 5k miles. I havent cleaned the valves and don't know if the previous owner did either. I've probably read too many horror stories about cleaning the valves and carbon screwing up the engine, but i'm a little afraid to start cleaning now. Any opinions? i have recently noticed that my mpg has gone down 2-3mpg since ive owned it...

 

[RedCal]

No need to be afraid to clean them...If you don't want to DIY it, you can have it done professionally

 

[Rick1111]

No need to be afraid to clean them...If you don't want to DIY it, you can have it done professionally

What is a good DIY method?

 

[cncBilly]

What is a good DIY method?

CRC valve cleaner. Videos on YouTube.

 

[Ohiocruiser]

What is a good DIY method?

Remove intake manifold, and clean them manually.

 

[Badal38257]

Is the catch can a good way to do this? Would be super easy if so. Havent found any video proof of anybody doing it.

 

[Badal38257]

Well I did it and it smoked like a freight train. No issues so far though. One question that is off topic though. After the valve cleaning, I took it out to burn some rubber like the instructions said. I have only used launch control a couple of times since I've owned it (I know, I know), but it didn't loose traction either time. Last night, it broke free both times. Launch control was engaged and the pavement was not wet (it does have a little salt on it though). I didn't think launch control was supposed to let it do that. Ideas?

 

[5tinger]

Sprayed the CRC through PCV valve. Puffed massive amounts of smoke. Guessing the intake port the PCV is routed thru would have the most deposits.

 

[Transmetal]

I have about 10,500 miles on my 2020. Should I be needing to do this for longevity sake or are the miles to low still?

 

[5tinger]

I have about 10,500 miles on my 2020. Should I be needing to do this for longevity sake or are the miles to low still?

There's no point using the spray type cleaners if there's already too much carbon on the valves. Hence why it's recommended prior to each oil change as preventive maintenance.

 

[Transmetal]

There's no point using the spray type cleaners if there's already too much carbon on the valves. Hence why it's recommended prior to each oil change as preventive maintenance.

Ok but after only 10k miles, there probably can't be that much built up already can there? Which if that's the case then it'd still be worth doing, correct?

 

[stoopid]

Ok but after only 10k miles, there probably can't be that much built up already can there? Which if that's the case then it'd still be worth doing, correct?

IMO you're right at the point where I would use chemicals to remove what's there in hopes of staying ahead of the real gunk/crud forming. Every 10k miles do the chem treatment and you should have perpetually clean valves. If you could scope the back of the valves before/after that would definitively answer whether there's any buildup and whether the chemicals removed it.

 

[Ohiocruiser]

Anyone saying spraying some chemicals through intake with running engine is helping, obviously doesn't even understand what a valves build up is. But at least you are making some companies producing this crap very happy.

 

[5tinger]

Anyone saying spraying some chemicals through intake with running engine is helping, obviously doesn't even understand what a valves build up is. But at least you are making some companies producing this crap very happy.

You're absolutely correct in that the chemical spray via intake would have absolulty zero effect on well formed deposits.
However, when used in a scheduled sequence early on it would certainly assist with reducing deposit formation to a certain extent.