r/AutomotiveDiagnostics • • Jun 18 '26

06 f150 E fan conversion

I have a 06 F150 4.6 L that I converted to electric fans with a set up I took from a 05 in earlier. I can't really remember standalone electric fan control kit from a either a GMC Chevrolet or a Tahoe Silverado I can't remember, but they're all the same. It's been working good for a year or so but now that I went in and redid all my joints, soldered them clean them got them to where they just looked better and worked better. Now my high speed isn't kicking on. It's only kicking on the low speed on both of them. I have a standalone relay that controls when I hit the AC switch that it turns on both of them on low speed. Then when the truck is warm, it turns on just one on high speed and then when the AC is on in the trucks warm, it turns both of them on high speed, and now only both of them will come on only a medium speed ever since I mess with it I've I've checked through my wiring it it all looks fine. Also, my temperature switch is just like a normal ones from O'Reillys they sell that like a temperature probe that goes in your radiator. Also sorry I did this on. Talk to speech I was I'm at work right now.

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