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Old Mar 19, 2011 | 10:09 PM
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From: Bloomfield NM
air intake temperature

Have a 01 250 Super Duty 7.3
Why do these have an air intake heater if they run better with cold air
this is my 1st diesel and am trying to get better economy
drive 500 miles a day everyday
love this truck, has 378000 and all i have had to do is put a trans in it

Anyone have some ideas please let me know
 
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Old Mar 19, 2011 | 10:19 PM
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Removing the AIH coil will not affect cold start up in any conditions.*The PCM only commands the AIH to activate to reduce white smoke during extended long idle periods at low ambient temperatures. Specific conditions must be present before the heater is activated per Ford:

Ambient temperature must be below 32°F
Engine oil temperature (EOT) must be below 131°F
Vehicle power must*remain between 11.5 and 15.0 volts
Parking brake must be applied
The transmission must be in Park or Neutral
Glow plugs must be off
 
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Old Mar 19, 2011 | 10:19 PM
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Most people on here end up removing the AIH (intake heater) and using that port to install their boost line for their gauge. It is not necessary especially in the climate that we live in. It blocks air flow and might (not proven) help performance and MPG but is probably negligible.
 
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Old Mar 19, 2011 | 10:21 PM
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Originally Posted by JT250
Most people on here end up removing the AIH (intake heater) and using that port to install their boost line for their gauge. It is not necessary especially in the climate that we live in. It blocks air flow and might (not proven) help performance and MPG but is probably negligible.
Riffraff Diesel: AIH Delete Plugs
 
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Old Mar 19, 2011 | 10:25 PM
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So adding a cold air intake won't activate the aih ??
 
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Old Mar 19, 2011 | 10:26 PM
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No, it is something completely different.
 
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Old Mar 19, 2011 | 10:28 PM
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any sugestions on what intake to use
 
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Old Mar 19, 2011 | 10:30 PM
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I prefer the 6637 or S&B personally.

Riffraff Diesel: Intake Kits / Filters
 
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Old Mar 19, 2011 | 11:08 PM
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I have the S&B. I wanted a semi-closed intake. But either the 6637 or S&B are solid choices like Clay mentioned.
 
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