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Intake clean. WOW!

bdbake01

By bdbake01
in Engines & Drivetrain

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hotrodz37 Senior Enthusiast

hotrodz37

Posted
Posted (edited)

I only have 8k on my truck, was a demo that had 2k on it when I bought it. I have owned it for a year and have only driven 6k miles (work is only 4mi from my house) so I am going to give this a try this weekend as well. I can definitely tell a difference from when I got it and now in performance. I think a lot of it is attributed to the fact I drive such short distances and the engine doesn't ever fully heat up so there is probably some buildup on my valves already. I will be installing a catch can in the next week or so as well.

Edited by hotrodz37
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bdbake01
bdbake01

yep, gotta admit the scraper is genius. Probably more reliable than the wife. DEFINITELY less mouthy about the situation.

nadrojcote
nadrojcote

I just did my truck with seafoam. I can't tell a huge difference yet, but we will see over time. Used my window scraper to keep the rpm around 2000.  

bdbake01
bdbake01

Ok, so lately I've been noticing the 6.2 stumbling a bit, hesitating, lower mileage - even more than expected for winter - etc. and began getting more concerned about intake valve buildup. 26k miles

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Gmcant33 Enthusiast

Gmcant33

Posted
Posted

No gas, of any type, will have any effect on this issue since the gas never sees the back of the valves. Southern described it very well. Non-DI engines can benefit, but not DI.

I'm aware of the function but Is 87 regular dirtyer than e85 I mean the valves do get some fuel from the valves kinda like a backwash

Dropsix Enthusiast

Dropsix

Posted
Posted

Any canadians doing this? If so what product did you use since this CRC stuff doesn't appear available in Canada.

nadrojcote Senior Enthusiast

nadrojcote

Posted
Posted

Any canadians doing this? If so what product did you use since this CRC stuff doesn't appear available in Canada.

 

If you look back I showed how I did it with seafoam.

Dropsix Enthusiast

Dropsix

Posted
Posted

 

If you look back I showed how I did it with seafoam.

 

Got ya! Will give it a shot a little later!

TxTruckMan Senior Enthusiast

TxTruckMan

Posted
Posted

Ok, so on my usual commute this morning I reset the DIC trip A. Now, over the last few weeks I've been watching it close. It's almost all interstate, but there's a LOT of construction going on so every day it's about half cruise @ 70, and half stop and go. I'll admit this morning things went pretty smooth without a ton of stop and go, but the last 2 miles definitely took 10 mins or so. Anyway, I've been clocking in around 17.5 to 18.5 mpg pretty consistently which I at least partially attributed to winter gas. Seems I was wrong!!!

 

 

 

FYI, winter gas has little to do with MPG. Cold temps, not the gas, have much more of an effect on MPG.

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Bonker Enthusiast

Bonker

Posted
Posted

Any canadians doing this? If so what product did you use since this CRC stuff doesn't appear available in Canada.

Best to hop the border and buy a few cans

Dropsix Enthusiast

Dropsix

Posted
Posted

Best to hop the border and buy a few cans

 

Bah, seafoam will do I think.

darkfox1 Senior Enthusiast

darkfox1

Posted
Posted

More than likely. It seems seafoam has been around longer too. I remember people talking about using it on every forum I've been on for vehicles. I've never used a cleaner product in my engine until now though.

 

I'm still averaging about 1mpg better than I was before the treatment.

 

CRC products are very good though. Their brake cleaner is an awesome parts cleaner. Been using it for years.

  • Like 1
nadrojcote Senior Enthusiast

nadrojcote

Posted
Posted

More than likely. It seems seafoam has been around longer too. I remember people talking about using it on every forum I've been on for vehicles. I've never used a cleaner product in my engine until now though.

 

I'm still averaging about 1mpg better than I was before the treatment.

 

CRC products are very good though. Their brake cleaner is an awesome parts cleaner. Been using it for years.

ya their brake cleaner is awesome, I use it to clean everything on my truck that gets oily/greasy. Its readily available in Canada.
Dropsix Enthusiast

Dropsix

Posted
Posted

I have a feeling seafoam is stronger. Hence the 5 Min vs 1 Hr heatsoak time.

 

Did you still do 30 second long sprays at a time?

 

Sorry if you mentioned this somewhere in the 6 pages.

nadrojcote Senior Enthusiast

nadrojcote

Posted
Posted

I found it was taking for ever to spray it, I did about 45 sec - 1 min intervals and then I would check to see how much was left in the can.

nahulu77 Enthusiast

nahulu77

Posted
Posted

I did both the seafoam and Crc, but not together. Seafoam 2 months before catch can install and crc day of CC install. It seem to take away the rough idle that was developing and got some throttle back, but my only question is how often can we use it? Will it do damage if you spray it often,Because if it helps, can I spray it every other month? Anyone?

nadrojcote Senior Enthusiast

nadrojcote

Posted
Posted (edited)

Just a heads up to anyone going to do this after as many miles as I have on my truck (over 70,000km/45,000 miles). I was just doing some errands and I noticed my mileage decreasing big time, went from my average of around 20l/100km to almost 27l/100km and then I noticed my idle started to get pretty rough while in drive and stopped at a stop light. When I went to accelerate my check engine light came on.

 

I used torque to find the code, having a feeling a head of time what it would be and I was right. P0420 catalyst bank below threshold. Now I am not 100% certain the seafoam caused it, but I don't think I'm being unreasonable by assuming the free'd up carbon is now stuck in my catalytic converters.

 

I reset the check engine light and my mileage has dropped back down to 23l/100km just in the short trip home. I checked torque again when I got home and the truck hasn't finished runnning its test on that catalyst bank yet so I can't update on this. Luckily if it does come back it should be covered under warranty.

 

The other possibility is that I have an exhaust leak, hopefully they do not give me any grief about my welded on muffler if I have to take it in for warranty.

Edited by projectsummit

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