K&H Air Filter Opinion - Ford Powerstroke Diesel Forum
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Old 09-24-2009, 06:08 PM
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K&N Air Filter Opinion

Hey everyone,

I recently had my '04 at a Dealership for a FICM replacement. I received a call from the repair writer telling me my wiring harness "might" be bad (they had no way to check it) and if I didn't replace it, the new FICM will "not" be under warrenty. I am curious on your thoughts on this.

Also, The mechanic told me I need to get rid of my K&N air filter because when it gets dirty it allows dirt to pass through into the engine.

Thanks for your help

Last edited by Todd Siegfried; 09-25-2009 at 10:51 AM.
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Old 09-24-2009, 06:32 PM
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I agree with tech. K & H filters are junk IMO. The factory filter on the 6.0 is good to 500rwhp anyway..
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Old 09-25-2009, 07:08 AM
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Thanks........
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Old 09-25-2009, 08:40 AM
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Put the stock filter back in best you can buy..good for 500+ HP
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Old 09-25-2009, 08:53 AM
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Do you mean K&N filter? I have heard dealer mechanics tell people that.

Is it true..."when it gets dirty it allows dirt to pass through into the engine?" Not sure. I have a K&N FIPK on my '01 and I check the filter about once every other month and I take the cone filter off and check the tube going to the turbo. By check it, I mean taking a clean Microfiber towel and wiping the inside of the tube. I have yet to find stuff on the towel when I get it out of the tube. Now I will say this.......this is MY experience with a K&N filter. But am I the only guy with a reliable filter?
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Old 09-25-2009, 10:53 AM
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Sorry. I meant K&N.

Thanks
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Old 09-25-2009, 11:13 AM
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K&N is garbage hands down... they allow dirt through and it will dust your turbo and scar your chamber walls... get rid of it completely... stock air filter is better in regards to filteration... but AIRAID, AFE, S&B, and Banks will flow better and filter better than stock....

as for your wiring harness, how can he think its bad if he cant inspect it? that sounds fishy to me... id get a second opinion it i were you
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Old 09-25-2009, 11:16 AM
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Ya K&N will let dirt through. But keep it whan you want to race at a track or the street.
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Old 10-18-2009, 12:08 PM
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A dealership will always point a finger at modifications instead of accepting blame for a faulty product. ALWAYS. I've got an aFe StageII with a Pro-Gard 7 filter, cleaned it yesterday and the tubing behind the filter was spotless.
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Old 10-18-2009, 12:15 PM
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I dont believe that he has no way to inspect the harness. Even a simple continuity test will tell if its bad or not.
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