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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Electric Fan Question

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Old 03-25-2011, 07:41 PM
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Is the only way to get the fans to come on earlier to get a manual switch or is there just a relay that I can plug in???
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Old 03-25-2011, 07:43 PM
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What? How could plugging in a relay make it come on faster?

To answer though, you reprogram the PCM to make the fans come on at the desired temp.
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Old 03-25-2011, 08:02 PM
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You can reprogram the stock computer. I did the switch. The parts cost about $4 bucks and it took all of 35 minutes to install. Piece of cake. The diagram on shbox was spot on.
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Old 03-25-2011, 08:04 PM
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Through the computer is the CORRECT way.
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Old 03-25-2011, 08:23 PM
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Originally Posted by nitrous2fast
Through the computer is the CORRECT way.
Don't forget most people add a manual switch along with the PCM programming so they can operate the fans with both.
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Old 03-25-2011, 08:51 PM
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well ya, but I was talking, more along the lines of, thermostat changes and such...
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Old 03-26-2011, 10:01 AM
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I am planning on putting the 160* stat in but thats still not going to be good enough for sitting in traffic. Thanks for the help everyone.
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