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  #1  
Old 06-01-2013, 08:20 PM
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High Idle issue after Intake install?

I just installed a K&N Cold Air Intake on my 08 F-250 and when I got home i noticed my parked idle was a little over 1000rpm close to 1100 or so, normally the truck sits around 800 and I want to be sure this isnt a serious issue or just an affect from the new intake?

Please someone help me with this thanks!
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Old 06-01-2013, 11:20 PM
Yeah it's a Turbo Diesel
 

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I'd return the k&n kit ASAP. They're filters do a poor job of filtering out the elements on our trucks. Go with afe or s&b. it's not just theory, there's numerous tests out there proving it just search the forums. But yeah, get rid of that k&n. I personally like afe over s&b but that's just me


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Old 06-03-2013, 07:30 AM
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I agree with Marshall. Although i dont think the intake is causing the higher idle I would get rid of the k&n and get an AFE or s&b. I have heard bad things about k&n. One member did a whole thread about the k&n and it wasnt good. He finally switched. I cant remember the members user name.
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Old 06-10-2013, 06:25 PM
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Quote:
Originally Posted by mts678 View Post
I'd return the k&n kit ASAP. They're filters do a poor job of filtering out the elements on our trucks. Go with afe or s&b. it's not just theory, there's numerous tests out there proving it just search the forums. But yeah, get rid of that k&n. I personally like afe over s&b but that's just me


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I know you said there are numerous tests saying K&N air filters aren't adequate however, many people don't know you are supposed to oil the filter before you install it. I know a lot of guys who race motorcycles and cars and highly recommend K&N air filters. Were these tests performed after the filters were oiled?
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Old 06-10-2013, 07:48 PM
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Yes, on gasoline motors they do ok, but a twin turbo diesel, those turbos just suck the **** it, hense it not being a good filter
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Old 06-10-2013, 08:00 PM
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Originally Posted by ramonpowerstroker View Post
Yes, on gasoline motors they do ok, but a twin turbo diesel, those turbos just suck the **** it, hense it not being a good filter
O i c! Thank you!

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  #7  
Old 06-10-2013, 09:42 PM
Yeah it's a Turbo Diesel
 

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Yeah he's right^. It's been so long since I read the thread with the test I can't even remember. I just remember reading that and immediately thinking "That's enough info for me to go with another filter that's proven to filter out all the crap and keep my 2 turbos in good shape". I have 2 afe filters, I keep one cleaner and ready to go in the box on the shelf so when I need to clean my filter I just swap them out, clean the dirty one and re oil it and stuff it back in the box- so I don't have to wait for it to dry and all that crap before I can drive again. Well worth buying a 2nd filter if your using the oiled ones!


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