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post #1 of 8 (permalink) Old 05-20-2010, 06:30 PM Thread Starter
 
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IAT Sensor Location

Anyone have a picture showing the location of the Intake Air Temp.(Air Charge Temp.) sensor on a 2003 SOHC 4.0L? Have a buddy trying to figure out out where it is so he can change it.
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post #2 of 8 (permalink) Old 05-20-2010, 06:59 PM
 
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from my haynes manual "Note: All 2.5L engines, 3.0L and 4.0L 1993 through 1999 and 2.3L engines 1993 through 1997 utilize and IAT sensor. Models following these years do not have an IAT sensor."

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post #3 of 8 (permalink) Old 05-20-2010, 07:45 PM Thread Starter
 
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Interesting, I'll have to double check the code he was getting with him. He was getting system lean codes earlier in the week, I cleared those for him, he had the original fuel filter on the truck, so I convinced him it was time to change(220K kms on the clock). Now he tells tonight when he dropped in that he had a IAT code and asked where it was. I couldn't spot one looking quickly, hence the post on here. I'll get him to write down the code for me.
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post #4 of 8 (permalink) Old 05-20-2010, 08:47 PM
 
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It's an integrated part of the mass air flow sensor.

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post #5 of 8 (permalink) Old 05-20-2010, 09:16 PM
 
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sure its not IAC ? if these trucks had it.... i know the 4.2's do



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post #6 of 8 (permalink) Old 05-21-2010, 05:42 AM Thread Starter
 
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That was my original thought, the MAF replaced the temp sensor, the purpose of the IAT was to tell the computer air temp, therefore density, the MAF tells the computer this and volume. I'll check the codes on this thing myself this morning.
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post #7 of 8 (permalink) Old 05-21-2010, 02:36 PM
 
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the iat sensor is integral to the maf,it has 2 heated wires inside(one for iat/one for maf)try cleaning the sensor wires(have seen alot with buildup on sensing wire)


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post #8 of 8 (permalink) Old 05-22-2010, 05:40 AM Thread Starter
 
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I confirmed both the code and that the sensor is part of the MAF. I suggested he try cleaning it first and clearing the code. The code was P0113, he also had lean codes for both banks last week, those weren't stored in their yesterday. MAF going south perhaps?
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