[Midblues]

Looking to do a CRC intake cleaning. Question want to make sure where the mass air flow sensor is and where do you guys think the best place to spray in intake is? Have turbo 4 2019 all stock.
Thanks

[wookwook]

only use maf cleaner. u can use Isopropyl alcohol on the maf. you can dip it in a bowl. it comes out with one screw right next to the air cleaner lid. be very careful with the clip. pull the orange up a bit and sqeeze the body hard. i would let it cool down first, it uses heated wires to measure the air.



https://itstillruns.com/clean-maf-alcohol-8663160.html

["Charlene"]

Best method is to take off your air hose and spray directly into/onto the throttle body while giving the engine the recommended 2000 RPM.

[Elite Engineering]

This is safe to soak valves in, but NEVER use an engine running cleaning on a GDI engine, especially a turbo. Ford will void the warranty as the pieces breaking loose will impact the hot side turbine blades and damage them from the impact. ONLY do a manual cleaning to be safe.

[Midblues]

Then why does GM recommend it every 10,000 miles, now I am totally confused.
Thanks woolwork but not looking to clean MAS just not spray CRC on it.

[wookwook]

i see. it will work with actual scrubbing. spray method seems useless. the lgt intake drops into a box then air blows upwards. i dont see how it could work from shooting the throttle opening. the space in the ltg bay makes it easier to remove the intake plenum. id use a shop vac to suction the intake ports not air gun though. In today's point and click world they might sell a bunch. the telling lack of CRC demo before and after proof tells you all you need to know. learn how to remove the plenum and set pistons TDC. soak, scrub, and suck. i would do that way.

[6spdhyperblue]

Originally Posted by Midblues

Then why does GM recommend it every 10,000 miles, now I am totally confused.
Thanks woolwork but not looking to clean MAS just not spray CRC on it.

Where does gm recommend it ever?

[Midblues]

Very tricky video I thought it was from General Motors GM but its not. My mistake sorry. So what do you guys do to clean intake and at how many miles do you have to clean it. I have no catch can setup thinking about it but warranty crop so just thought I would clean intake a few times till warranty is over.

[Buff Orppington]

I'm about to take delivery of a new 2.0, and have had the same question.

Seems that the options are CRC, catch cans, and the procedure outlined above. My dealer's service department said any and all of that would violate the warranty.

It looks like most people who worry about this use some sort of service like this from an independent garage.
https://www.tirereview.com/valvoline-launches-gdi-fuel-system-service/

I think the cost is about $80 or $100 or so. Can't vouch for it, but it's something that i could see doing.

[wookwook]

its all b.s. i cant see this working w/o accessing the intake ports physically. there's a youtube out there with a shop shooting valve toppers with walnut chips. mini coopers actually code for needed service. seems like a money maker for service bays. i sense a good mobile service business oppty.

[Buff Orppington]

Wookwook, how often do you do this operation? How do you know it’s time? Do you have the Mishi catch can system? Good to know about the easy access.

As far as CRC is concerned, i have no trouble believing it isn’t effective for an engine that has a lot of build up, and that it might pose some risk to an engine to use it for the first time when it has a lot of build up.

But using it as directed every 10,000 miles starting with a newish engine might make sense. It’s so cheap and easy, I’m basically looking for a reason not to use it every other oil change. Haven't seen anything online saying it caused any issues.

btw, it looks like BG products presents on google and youtube as a big deal in this area. They have a complete service. I see a Cadillac dealer near me offers this service, so I’m guessing no warranty issues. I saw a price of $129 somewhere.

[wookwook]

i totally hear you. I brought up the topic before. I kind of backed into this from another angle several months back, but water under the bridge. Most of us I 'think' look to catch cans as a way to extend the need for having to do this on say like a 30K or 60k interval or some thing like that. No one knows b/c no one has posted this info on a life time of practice.

My understanding today.... you see the dexos formulation on the filler cap. its a new formulation that is supposed to reduce the possibility of explosive pre-bang? or super ping. Its not so much that DI valve gunking is the issue on its own. I 'think' in our collective hopes that the new piston design and dexos is enough to survive a lifetime of build up and extreme use, unless some one knows the factory requirement for shell blasting.

The only thing that comes to mind is now adding a chemical that will eventually find its way into the crankcase, I can understand the warranty issue, but really, how would they know? Would dealer do a chem analysis on the oil if they thought they would void a $5K claim? we don't know.... But the point is if we don't rely on dexos to do its job, then its left hand not knowing what right hand is doing buy adding chemicals.

I mean jeez they could have just built a lift top on the intake to access the ports and stems. But I don't think its not something you can't do in the driveway after 60K and call it a day.

I just do my oil changes earlier than the meter calls for and try to mitigate it that way for now.

[Midblues]

I am still leaning towards CRC every 10,000 miles and when the CRC service is done oil filter change so nothing is sitting in oil pan.

[Midblues]

If there is a warranty issue GM will never know you used CRC but a catch can is visible and a pain to take in and out