Silverado Ls1 E-fan install issues. Help!
#1
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I installed Ls1 electric fans on my 99 rcsb today, I used the harness from ls1fans.com.. Great kit. It requires tapping into the a/c trigger wire and pinning the #42 pin on the pcm harness, after following the steps to a T, I cranked the truck up and the fans instantly came on, and ran constantly.. So I'm stumped to what the issue could be, any help or ideas would be appreciated!!