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resident pyromaniac
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I'm not sure if there is any way that you can turn on the fans in the PCM on those model trucks. If there was a way to do this, you could use a harness from BlackBearPerformance and simply wire up the fans. You would need a tune to turn on the pin from the PCM. I'm sure a set of LS1 fans would bolt in quite easily.
 

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The computer is physically capable of controlling a fan, its just not in the software on the trucks. I'm not sure if the code can be added or not, it is in the FWD cars.
 

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319 Posts
Replace the black box PCM with an 0411 LS1 style 99+ PCM and then control them with the PCM.
 

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Best dollar for dollar mod you can make to an OBS....by far.
 
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