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GDI intake valve cleaning

17969 Views 13 Replies 6 Participants Last post by  arathol
Since our engines are the Gas Direct Injection type has anyone done a cleaning of the intake valves? I'm in the process of doing it now using CRC GDI iVD Intake Valve and Turbo Cleaner. I'm at the 1-hour heat soak point right now so I though I'd take a break to make this post. If it all works well then I'll post my procedure and it is pretty simple and straight forward so fingers crossed. Wish me luck.
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I just found out about this issue and was thinking of spraying my intake with the CRC GDI Intake Cleaner every 10-15000 miles. I do have an inspection camera so I can try looking and/or taking a picture first.

One thing I heard suggested was a catch can. I ordered one of these Chinesium/Al units off Amazon for 25 dollars. Quality really wasn't bad although all the threads on it sound kinda "scrapyard" and the dipstick is lacking an o-ring.

Question is... where to mount it? I can only find three halfway decent spots, none of which I like.

1) Against the plastic lip of the rain tray in the dead center. It gives very easy access, but it means you are mounting to plastic and it's directly over the exhaust.

2) Right shock tower. This seems like a good place. But do I want to drill through the shock tower and how exactly would I attach it. There's a little vertical bracket with two holes that's screwed into it. It's possible I could remove the bracket, drill through shock tower and then just use screws from inside the shock tower into the threaded holes used to hold the bracket.

3) Just behind the left headlight. Probably the ideal location but I can't figure out how to actually attach it. Pretty much everything there is plastic and it's cramped.

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