AEM Filter is killing my 7.3 . . . check this out - Ford Powerstroke Diesel Forum

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post #1 of 10 Old 08-26-2009, 06:39 AM Thread Starter
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Angry AEM Filter is killing my 7.3 . . . check this out

Hi All,
Thought this would be of interest to those of you who have an AEM filter for your truck or are considering one. I WAS running an AEM Dryflow on my '96 PS.

I got my oil analysis back from Blackstone yesterday along with a personal call from the regarding the results. Silicon went from 7ppm to 29ppm!!!! They said to check the intake for leaks, etc. So I did. A visual inspection and pressure check showed nothing. The AEM filter was a bit dirty on the outside but not damaged. THEN, I looked inside the filter and saw sandy dust everywhere. The inside is supposed to be the clean side!. The filter was installed ~8000 miles ago on a DIY intake and cleaned ~4000 ago according to AEM instructions. I secured paper to the bottom of the filter and tapped it to get the stuff from this inside out. I have attached pictures to show the results! I feel the AEM filter is killing my PowerStroke.

I have contacted AEM and hopefully will hear back. I'll post the response. I hope with a new filter -- probably a 6637 type -- I'll be back to normal on the silicon soon. I hope there was not too much damage. More pictures on webshots at:
AEM Air Filters Destroy Engines pictures from rides photos on webshots
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1996 F-350 CC 4x4: 105k miles, 4.10s, 285s, shell, fuel pressure @ 65psi, "need a new intake", ATS intercooler and turbo housing, 3 to 3.5" down pipe, 4" exhaust, HP oil cross-over line, ISSPRO Pyro and Boost, Wildman 3-pos chip, OSH Mod.
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post #2 of 10 Old 10-05-2009, 06:14 PM
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thats not good buddy. i was actually looking to get one of these, now im totally reconsidering that. hope they take care of ya
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post #3 of 10 Old 10-05-2009, 06:19 PM
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Da** I have one of these. Looks like it is coming off!!

Sam


2005 F350 King Ranch CC DRW Insight Leveled 4" MBRP Straight Pipe Tinted

'99 F250 - Sold
'99 Cummins - Sold
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post #4 of 10 Old 10-05-2009, 06:25 PM
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ive had mine on for around 20k and never had this problem at all i always look jus to make sure wen i clean it and nothin

08 f250 xlt
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post #5 of 10 Old 06-02-2010, 07:12 PM
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sorry know this is old

was there ever any conclusion to this? and was it not like this the first cleaning? thought i had found my filter!
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post #6 of 10 Old 10-19-2011, 06:15 PM
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I had the same AEM on my 2000 and I just spent $2200 at the dealer to put on a new oil pump. The Ford dealer told me those cold air intakes make the oil dirty. My truck hasn't turned 100k miles yet.
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post #7 of 10 Old 10-20-2011, 10:14 AM
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I been saying this for 10 years..use a Donaldson filter as the Tymar uses..I've seen all others dust motors..thats why even though I can sell the others I won't. I just won't make a sale to just benefit myself at the expense of customers
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post #8 of 10 Old 10-20-2011, 10:21 AM
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AFE has always worked well for me. Personally had them on 5 different trucks that I was responsible for the maintenance. All turbo diesels and all spotless inside the intake.

2002 f250 BFT Edition


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post #9 of 10 Old 10-20-2011, 03:56 PM
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" I been saying this for 10 years..use a Donaldson filter as the Tymar uses..I've seen all others dust motors..thats why even though I can sell the others I won't. I just won't make a sale to just benefit myself at the expense of customers"

Hey CT can you send me some more info on the Donaldson filter? Does it just replace the filter part or the whole setup? I got a brand new oil pump now and don't want to do it again. Thanks
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post #10 of 10 Old 10-20-2011, 04:12 PM
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PM sent...........
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