Intake Valve Cleaning

[jlach993]

Hey everyone, i have a few questions i’d like to ask you all in regards to the valves on our DI engines. I’m not experiencing any issues with the motor, but i know they’re prone to carbon build up on top of the valves. I just want to do some preventative maintenance as the truck has 89k miles. I’m a bit lazy/cheap to do walnut blasting as of yet. Is it okay to buy CRC cleaner or Seafoam and spraying it down the throttle body? Would that make a difference in cleaning off the gunk? My plan was to do a can a week for a month which would be 4 treatments. Is it worth it or just a waste of time? Also what cleaner should i go ahead with. Let me know honestly people. Thanks a lot for all your inputs!

 

[djkaosone]

Is it okay to buy CRC cleaner or Seafoam and spraying it down the throttle body?

Yes, it's recommended that you actually run BG44k. BUT, CRC or Seafoam is fine. If you're looking for something that'll quickly decarbonizing, I'd suggest plain old water in a fine mist spray bottle. Take your time and spray once every 5 seconds and you'll need less than 1 cup of water.

Would that make a difference in cleaning off the gunk?

It makes a huge difference. Smoother idle, better fuel (probably less than 1 mpg), better throttle response, and what not.

It's easy to do and it'll save your engine. I need to walnut blast it again...

 

[Al Pizzica]

Seafoam spray into the throttle body made a huge difference in our 2013 LR4 with 97k or so on i . Should have done it sooner. It's kind of a pain to get the nozzle in there and you have to go slow but it was worth it.

 

[jlach993]

Seafoam spray into the throttle body made a huge difference in our 2013 LR4 with 97k or so on i . Should have done it sooner. It's kind of a pain to get the nozzle in there and you have to go slow but it was worth it.

What rpm did you hold it at whilst spraying?

 

[jlach993]

Yes, it's recommended that you actually run BG44k. BUT, CRC or Seafoam is fine. If you're looking for something that'll quickly decarbonizing, I'd suggest plain old water in a fine mist spray bottle. Take your time and spray once every 5 seconds and you'll need less than 1 cup of water.


It makes a huge difference. Smoother idle, better fuel (probably less than 1 mpg), better throttle response, and what not.

It's easy to do and it'll save your engine. I need to walnut blast it again...

Thanks for this!

 

[djkaosone]

What rpm did you hold it at whilst spraying?

Around 3,000 rpms. I put a 10lbs dumbell against the pedal.

 

[Fuji4]

Anybody have thoughts of the safety of using CRC upstream of their supercharger? Still effective when pushed through the SC and charge air cooler? Any change of it messing up the supercharger ?

 

[djkaosone]

Anybody have thoughts of the safety of using CRC upstream of their supercharger?

CRC makes one specifically for GDI (Gasoline Direct Injected) engines with forced induction. https://www.autozone.com/fuel-and-e.../crc-gdi-intake-valve-cleaner-11oz/461563_0_0

How to:

 

[Fuji4]

Thanks. I will be doing this soon.

 

[jlach993]

CRC makes one specifically for GDI (Gasoline Direct Injected) engines with forced induction. https://www.autozone.com/fuel-and-e.../crc-gdi-intake-valve-cleaner-11oz/461563_0_0

How to:

Wow i didn’t even know this. I bought the regular one. I’m headed to autozone right now. Thanks dude.