Quote:
Originally Posted by sneary
yeah i saw that as well but what makes it even more confusing is when i look up part (IVM) it shows its not in the 03 4.6 lol so idk
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Have you checked all the down-stream fuses too? Most items that are powered via F105 then have their own sub-fuse, so if a module is faulty, like an injector etc. then it would normally blow it's own (lower rated) fuse and not F105.
For 105 to blow there is either a large fault current to a path not protected by a sub-fuse (and there's very few of those), an aggregate current generated by multiple modules (like multiple failing modules!) or a chaffed wire with a short to ground.
I would have gone straight to my standby answer for a fault like this and said ignition switch but that's a new part. Maybe check around the wiring loom near the switch for a chaffed wire?