Sorry to hear that. I would hate to pay that bill. I had my tranny serviced @75k, it started to go 5k later and I got it replaced brand new no hassle. Come to Canada mate we pay more for almost everything but the people are fair!

Also that much build-up on such a young engine? I will have to find someone who can get this done for me I am probably way overdue.

 

Funny thing, my car is a Canadian model!

I did not have tranny issues that was another guy.

My engine did have a bad turbo and a previous owner that I think may have beat on it. Those are the only things I can think of.

 

**** my bad got confused. Ima sub this and thank you for putting the time to post it up. I will need to do this next year for sure. I haven't noticed any symptoms yet but it must be rough in there.

 

great write up! I will have to give this a shot one day when I have the time

 

10 hours of beer is gonna cost more than the tools to do this.

 

Trust me I was about to.

I just started getting the passenger airbag needs service a little while ago smh.

Truth^^^^

 

Now you were able to blast when the valves were shut and you weren't worried at all about any going into your motor?

 

SMH! Read the how to!! the valves have to be closed. BUT that said, the media is wood and any stray fragments will burn away harmlessly in combustion.

 

Lol^^

 

Dumb question but how do you close the valves? Didnt read any of that on the how to.

 

rotate the motor. or you can rotate the car. take your pick. dumb answer.

 

I obviously read the whole how-to.... Which is Why I said "when the valves were shut you weren't worried at all about any going into your motor?"

Simply asking if he felt confident that nothing would have went in the motor.. Wasn't sure if a few specs could have got in and it would be harmfull. Sheesh.

READ. Lol put in 4th spin the tire.

 

That's the wonder of walnut shell media, it's hard enough to remove crud but safe for the engines. Gotta love it.

It's also easy to put a socket on the crank pulley and just turn the engine over a half turn or so.

 

Nice I don't know what mine looks like in there but definitely gonna plan on doing this over winter.

 

they look awful lol then you can buy my upgrade once they are clean. the upgrade helps keep it nice; wont do diddly to get rid of the coked oil already there. And if the piston rings and lands are damaged thats a whole other story

 

What upgrade do you offer Powell? And lord don't jynx me I believe my rings are fine as of right now.

 

And question.. What causes these valves and ports to gunk up so bad like that?

 

dealership took care of mine under warranty..they don't have a choice if the cel comes on..

 

Why does it happen? Dry intake, plus oil blowby from the turbo, plus a little dust getting past the air filter equals crud. Normal fuel injection is above valves, meaning you get a solvent wash with each injection - doesn't happen in DI's where the fuel enters below-valve.

Got a question on this - did you do anything to make sure you didn't have any walnut crap stuck up the crannies at the tops of the valves? Did you spritz anything up there to ensure you didn't have any renegade solids, or did you just assume/hope/expect the stray bits would just pop into the cylinders after a few cycles?

I haven't checked my 09, and I was thinking a few seafoam treatments are in order - and maybe something like this if I can't seafoam/5th injector and stay clean enough.

Great how to, either way, and great job with the pics - very clear!

 

Trust me. Seafoam cannot touch this stuff. It is on there hard and thick (lolz). If you can't trust me then trust John Powell. A 5th injector would help prevent it but not remove effectively what is already there.

I used a scraper tool and lots of compressed air to try and get the most I could from the valve seat area (including the hidden side to the front of the car which I feel most people would miss as you can't see it. I scraped a ton of crap out of there.) as well as the valve stem area. I am sure I missed some as you cannot remove all of it. Any that does get into combustion is harmlessly burned being that it is combustible organic material (wood).

 

Please read the main LNF valve gunk thread it will explain the whys and wherefores. This thread is the how to.
and seafoam ? gets in your mouth when you surf.

 

crap another. Please read the LNF valve gunk thread very well started and very well explained. Props for wired for the how to.

props to anyone who goes read the other thread

 

https://www.cobaltss.net/forums/2-0l...e-gunk-282355/

gone in 10 secs did a good job with this thread. sssoop read the first post....

 

Powell what part do you offer to help this after it's cleaned?

 

Before i cry myself to sleep tonight for having read this, did you really walnut blast your cylinder head ports with the intake valves OPEN? Did the car even run afterwards?