Watch this video and take a guess

Carolinaboy

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The door is open duh! That is why it makes that noise. Take the key out

BAM! Fixed it for ya. Damn dealers couldn't figure that out :loser:
 

azmidget91

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The two different sensors would make sense, I'm just not sure with our trucks on how many are there.:dunno:

The pcm uses the ECT (engine coolant temp sensor) and the IAT (intake air temp sensor) to determine if the temps are within 15 degrees, if so its an open loop cold start :cool:
 
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1LOW4X4

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In all reality I have heard of vehicles being set up for different climates, made different places.

It would be far fetched to think that was your problem though :lol: they dont vary that much.

My suburban was hecho en mexico. Damn good vehicle!
 

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