AIH, needed or not
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Lead Driver
Joined: Mar 2000
Posts: 9,359
Likes: 1
From: Hampstead, NC
AIH, needed or not
I live in Wisconsin, which normally has a cold winter(not so far this year) and am concidering the AIH delete plug with boost guage hook up. Is it important to have the AIH in a cold climate?
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Yep, mine is in the shed. If you are like Al Gore though, may want to keep it. It may save an insect or two during cold weather warmup under extreme just right conditions over the life of the truck, but I doubt it because those insects are tough.
Elder User
Joined: Dec 2005
Posts: 703
Likes: 1
From: Middle of a field CT
The AIH is purely an emossions requirement, not needed, and it makes a great place to get a boost reading from. If you ever had it out you'd wonder why anyone would put it in the air intake system. It's huge for what it does.
Post Fiend
Joined: Jul 2005
Posts: 14,582
Likes: 12
From: 21791
Yep, its a general consensus that it's not needed. It barely comes on anyway, for the parameters that has to be met for it to turn on.
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Post Fiend
Joined: Feb 2006
Posts: 11,892
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From: Middle Tennessee
Leave the AIH relay there though, it makes an excellent GPR replacement in a pinch until you get another if your stocker fails.
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Lead Driver
Joined: Jan 2006
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From: Hartford, WI
Originally Posted by Ford79
I live in Wisconsin, which normally has a cold winter(not so far this year) and am concidering the AIH delete plug with boost guage hook up. Is it important to have the AIH in a cold climate?
A mechanic I know of is a different story. He believes that Ford is god and has built the truck that we should have. If Ford thought you needed it, they built it the way it should be done. Anything else is extraneous and worthless.
Also if I were selling you the AIH, you bet it is needed.
Post Fiend
Joined: Jun 2006
Posts: 5,497
Likes: 7
From: Central, Al
Here's the parameters for it. I doubt mine has ever come on.
The system is activated by the PCM when the ambient air temperature is below 0°C (32°F), the engine oil temperature is below 55°C (131°F) and the battery voltage is above 11.7 volts.
The intake air heater will stay on for 30 minutes as long as the engine is idling and the above conditions are met.
The intake air heating system will only activate once per "key on event". If the heater is activated and the vehicle is driven, the heater will not activate if the vehicle is taken back to idle.
The system is activated by the PCM when the ambient air temperature is below 0°C (32°F), the engine oil temperature is below 55°C (131°F) and the battery voltage is above 11.7 volts.
The intake air heater will stay on for 30 minutes as long as the engine is idling and the above conditions are met.
The intake air heating system will only activate once per "key on event". If the heater is activated and the vehicle is driven, the heater will not activate if the vehicle is taken back to idle.
Elder User
Joined: Sep 2006
Posts: 852
Likes: 0
From: ARIZONA
i pulled mine, and today high was 8 below zero, and all it does is throw more white smoke during warm up,which is cool any way, i like it when its warming up and you leave a stop light and none of the traffic behind you moves because all the smoke in the intersection. LOL.......................also today, by buddys super duty gasser was parked right beside me, when i autostarted and it ran for 5 or so minutes i ran in the office and was yelling that his truck was on fire, he looked up out the window and his face was crazy looking.............my exhaust was blowing under his truck and there was a 15 ft tall cloud of white smoke engulfing his truck on both sides, it was funny as all get out. especialy when he ran out side and heard my truck running. GOTCHA.......................LOL
Fleet Owner
Joined: Jun 2004
Posts: 25,090
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From: Rio Rico, AZ.
I would consider putting in a high idle control if your truck is smoking like that. The goal of warming up the truck is to "warm it up" not let it choke on excess fuel because it's struggling to run.