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Old 01-13-2011, 08:48 AM   #552
wkdivr
 
Drives: 2004 GMC
Join Date: Sep 2010
Location: W.Pa
Posts: 43
Go back in the install manual, and look at step #136. Make SURE you spliced the blue, and tan wires to the new IAT sensor wires. It must be the solid tan wire, not the tan with black stripe. At least on the older (04) trucks, this was very easy to cornfuse.
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