CRC Intake valve and turbo cleaner, Do you guys spray it in the

[NitroViper]

Intake tube before the turbo or do you take the tube off the throttle body and squirt it in there? Seems like an awful long distance to travel spraying it in right after the maf. I didnt see an easily accessible vacuum in on the intake. If you guys know of one could you post a picture?

[Tech/Sales@JHM]

Intake tube before the turbo or do you take the tube off the throttle body and squirt it in there? Seems like an awful long distance to travel spraying it in right after the maf. I didnt see an easily accessible vacuum in on the intake. If you guys know of one could you post a picture?

The ideal thing would be for you to pull the manifold and complete a carbon clean. Spraying this through your intake track will have little to no effect on the amount of carbon on the backs of the valves. Your best to use this as the solution to soake the carbon build up in when doing the clean. We have a great kit of tools for you to help with the work and make it easier!

Carbon Cleaning Tool Kit (JHM) for ALL FSI, TSI and TFSI Direct Injection Engines


Carbon Cleaning Solution or Solvent (Liqui- or Lubro-Moly) for (FSI) Direct Injection Engines

[findalex]

There's a youtube of a guy using the CRC on an A4 I believe. It works perfectly fine to shoot it right after the MAF. It may seem very far, but at 2500 RPM and the spray can atomizing the cleaner, it works just fine. It's really nothing special, just PEA (or Techron) and some other petroleum distillates as the carrier.

I've done it twice on my 2013 2.0 TFSI that way and it really does help. I used 1/2 a bottle for the first time when my car was around 75K miles, and it fixed about 98% of cold start misfires right away. My car is at 81K now and it starts and idles smoother when cold than it did the last 3 years before I used the cleaner.

[Ape Factory]

I have a video I need to finish but I just used this product on my RS5.

The short answer is this does NOT replace a manual cleaning like JHM posted (or walnut blasting) by any means.

With that said...I used the CRC cleaner 10,000 miles after walnut blasting my intake valves. It did work and reduced the carbon. I do not see it reducing the carbon enough to replace a manual cleaning however. I pulled my intake manifold before, took photos/video and then after I used the CRC valve cleaner.

On top of that and most importantly, you're likely moving small deposits from the intake valves, through the combustion chamber, out the exhaust, only to be embedded in your catalytic converters. Not good.

I do think the carbon cleaner tends to produce a "waste" product similar to thick varnish which probably burns in the combustion cycle. I don't have a real handle on the size of the particulates produced though. So it's sort of a crap shoot.

I talked to CRC about it and they basically said to wait at least 1,000 miles in between cleaning sessions. Just keep in mind it may be clogging your cats with carbon.

[findalex]

I think the carbon clogging up the catalytic converter is a potential issue but not a high risk one.

This stuff is basically fuel injector cleaner (Techron) that has been in use for literally decades. In a port injected (vs direct injected) engine, the fuel injector sprays the fuel/cleaner mixture over the intake valves, dissolving the carbon buildup and passing the exhaust through the catalytic converter. If carbon clogging up the catalytic converter is an issue, all the fuel injector cleaners (Chevron/Gumout/etc/etc) would have been sued out of existence a long time ago.

Also, there's a guy on youtube (Nate interactive I believe) that has tried many intake cleaners. His engine was caked up with carbon in his earlier videos, but they're almost spotless in his most recent ones. I think the cleaners do work, but takes many applications to do the same job as a manual clean. Then again, taking off the intake is time consuming and you risk breaking so many plastic parts along the way.

[NitroViper]

Well I did the CRC yesterday directly into the throttle body, seemed to work ok but didnt notice any difference. I went to walmart and bought the seafoam version. Directly into the intake again. After that was done there was a pile of carbon deposits on my driveway.... Car smoked like crazy and seemed to be a little more responsive. It hasnt sputtered when starting yet but its only been one day. Seeing that carbon pile on the driveway tho is telling my it was working.

[Tech/Sales@JHM]

Well I did the CRC yesterday directly into the throttle body, seemed to work ok but didnt notice any difference. I went to walmart and bought the seafoam version. Directly into the intake again. After that was done there was a pile of carbon deposits on my driveway.... Car smoked like crazy and seemed to be a little more responsive. It hasnt sputtered when starting yet but its only been one day. Seeing that carbon pile on the driveway tho is telling my it was working.

Be careful with doing this. Seafoam has been known you cause sensor failure in cars like Audi and VW. They were not designed to have fluid like this passed over electrical sensors in the intake system.

[Sazexa]

I did a carbon cleaning by hand, and use some BG ISC (Induction System Cleaner) as well as some of the CRC stuff to clean the plenums and intake valves. The BG worked a LOT better, but the CRC stuff, when allowed to soak a while, still worked well.

https://youtu.be/BcDkQO5uLaU

[NitroViper]

I did a carbon cleaning by hand, and use some BG ISC (Induction System Cleaner) as well as some of the CRC stuff to clean the plenums and intake valves. The BG worked a LOT better, but the CRC stuff, when allowed to soak a while, still worked well.

https://youtu.be/BcDkQO5uLaU

Is that your video? those are pretty nasty lol.

[Ape Factory]

I think the carbon clogging up the catalytic converter is a potential issue but not a high risk one.

This stuff is basically fuel injector cleaner (Techron) that has been in use for literally decades. In a port injected (vs direct injected) engine, the fuel injector sprays the fuel/cleaner mixture over the intake valves, dissolving the carbon buildup and passing the exhaust through the catalytic converter. If carbon clogging up the catalytic converter is an issue, all the fuel injector cleaners (Chevron/Gumout/etc/etc) would have been sued out of existence a long time ago.

Also, there's a guy on youtube (Nate interactive I believe) that has tried many intake cleaners. His engine was caked up with carbon in his earlier videos, but they're almost spotless in his most recent ones. I think the cleaners do work, but takes many applications to do the same job as a manual clean. Then again, taking off the intake is time consuming and you risk breaking so many plastic parts along the way.

The concern was brought up by someone who works in engine development for one of the big three. The cleaner isn't turning these deposits into vapor. It's breaking them up and loosening them from the surface with the help of mechanical motion and valves slamming against valve guides. He too said the risk is minimal with a one-time use but was very hesitant to recommend to use this method on a regular basis. No cats? No problem!

With that said, two words for JHM..."The Carbonator". Yeah. I know about it, hehe. Send it to me post haste. I'll put it to good use.

[Sazexa]

Is that your video? those are pretty nasty lol.

That is my video and my car. It drives way more responsive now.

[Jake@JHM]

The concern was brought up by someone who works in engine development for one of the big three. The cleaner isn't turning these deposits into vapor. It's breaking them up and loosening them from the surface with the help of mechanical motion and valves slamming against valve guides. He too said the risk is minimal with a one-time use but was very hesitant to recommend to use this method on a regular basis. No cats? No problem!

With that said, two words for JHM..."The Carbonator". Yeah. I know about it, hehe. Send it to me post haste. I'll put it to good use.

Geeze, lol.. circa 2011.