I have a question regarding Temperature. The previous owner of my IROC Z, installed a manual switch for the fan, Because he says, the computer control stopped working. I have no idea, in the first place why GM would want that type of fan, and not just put the standard fan controlled by the crank. But, while driving the car, I have no idea as to what Temp to run the car at. When first started, it takes a little while to warm up,, But I have no idea, how warm to let it go before I put on the fan. I am currently putting it on, when it gets one line before the 220 Degree mark. Which I'm not sure how warm that is,, but it runs ok. Any help would be great,,

Thanks,

Juice



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i have the same year iroc and my fan kicks on at 230 automatically