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I have a 99 f-350 with a 7.3 it blows the number 30 fuse in the fuse box under the dash every time i turn the key on. some people have been telling me it is the fuel heater and to unplug it were is that at is it on the fuel filter on top of the motor Thanks
Trouble shootings over, unplug it, replace fuse, leave it unplugged and drive on. Oh yeah, welcome to the site, you should hang around, they are some pretty smart guys on here and you can learn a lot of info.
If in fact it is your fuel bowl heater, unplug it then put a fuse in, you should be good to go like Barry said. If you decided to fix that problem a fuel bowl heater element, this is what you'll need. Click here and scroll down. Replacement O-rings for Ford Diesel Engines Great place to get one too, Bob's a good dude.