Quote:
Originally Posted by Camaroguy
3 relays for the fan or the harness? The fan was 2 and the harness has 3.
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For the fans. It's a GM schematic that allows both fans to run half speed at the low temp setting and then both run full speed at the high temp setting. This setup gets its triggers from the PCM. I like it because it pulls air across the whole radiator all the time and is quieter.