AIH do we need it
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
Get rid of that thing. It's only in there satisfy some EPA requirements. It blocks from 25-30% of the airflow in the intake. I took mine out before it got really cold (single digits and teens) this last winter, and noticed no ill effects related to the cold.
Post Fiend
Joined: Feb 2002
Posts: 10,600
Likes: 3
From: Carhenge
It's not necessary for operation of your engine at all. I took mine out almost 2 years ago, but I have seen absolutely no benefit as far as mileage or performance having taken mine out. But my pickup does produce a LOT of white smoke at cold startup without it. I started it in a hotel parking lot at Sun Valley one Sunday morning this winter when the temperature was -3*, dead calm. In probably less than 3 minutes of idleing I literally filled the entire parking lot with eye burning white smoke. People were looking at me like I just kicked their dog. I couldn't wait to get out of there.
Mine's going back in before next winter.
Mine's going back in before next winter.
Butt-Head
Joined: Apr 2004
Posts: 9,414
Likes: 2,910
From: Reed Point, MT
I had mine disconnected (out and plugged) all winter (only about an hour and a half south of you) and NEVER had an issue with white smoke. Hmmmm.
Just take it out...it's stupid anyways.
Cody
Just take it out...it's stupid anyways.
Cody
Postmaster
Joined: Nov 2004
Posts: 2,854
Likes: 0
From: New Hampshire
i removed mine and have done many hours of idling on cold days... no white smoke at all... i think it's just another useless piece of junk that the EPA forced FORD to put on all the 7.3's... someone told me that these motors don't come from the factory with these... only the motors that are going into FORDS got them... i don't know if that is true or not but i would not be surprised if it is...
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,111
From: Rio Rico, AZ.
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Postmaster
Joined: Jun 2005
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From: New Hampshire
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Post Fiend
Joined: Feb 2002
Posts: 10,600
Likes: 3
From: Carhenge
Originally Posted by PSNut
How aout a a GPR?
I would challange anyone to pull on a dyno and demonstrate any benefit from removing the AIH. Not trying to start a big argument here, I just don't think there is any benefit from this mod unless you are using the port for boost access.
On edit: I ohmed the glow plugs and replaced the GPR in December, not February.
Last edited by clux; Apr 18, 2006 at 06:54 PM.
Senior User
Joined: Mar 2006
Posts: 171
Likes: 0
From: Houston, TX
I noticed some gauges use the AIH hole to get a boost reading. What are yalls opinion on that? Is it better than other methods? Would it be a good use for the AIH hole, or is just plugging it better?
Logistics Pro
Joined: Aug 2005
Posts: 3,884
Likes: 180
From: Morgan Hill, CA
Originally Posted by wbhinton
I noticed some gauges use the AIH hole to get a boost reading. What are yalls opinion on that? Is it better than other methods? Would it be a good use for the AIH hole, or is just plugging it better?