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I recently got a 1999 F-350 Superduty with the 7.3 Powerstroke. The old gal purrs like a kitten. It runs smooth and the transmission shifts nice and smooth. However, I got it fairly cheap because of electrical issues. It has an add on flat bed with a hoist (dump bed) and a snow plow. Both were wired by somebody who was rather sloppy. It won't charge. New batteries and new alternator. I've been crawling all over it with a volt meter and have figured out the main power line to the alternator is only getting 2.3 volts when it should be full battery voltage. I'll be digging into the wiring tomorrow. Any body happen to know where the fusable links are? I figure someone didn't wire something right and the truck hit a bump and blew the links.
All the fuses are good and the bad shorts have been disconnected, reattached or insulated to stop future shorts. Any suggestions on where to start digging?
Fusible links for alternator are on the 12v hot all the time side of the starter relay on passenger inner fender. There will be a couple set on it. The fusible links are 2 grey wires. Then they will go to a bigger black/orange thst goes over to the engine valley.
Fusible links for alternator are on the 12v hot all the time side of the starter relay on passenger inner fender. There will be a couple set on it. The fusible links are 2 grey wires. Then they will go to a bigger black/orange thst goes over to the engine valley.
Thanks. You probably just saved me two to four hours of looking, smashing fingers and cussing. It's not that I can't find them, this is just a new vehicle to me and I don't know where everything is. If it was an older or newer Ford, I know where stuff is.
Now I just have to make sure which is the solenoid for the starter and not the one for the snow plow or the bed hoist. To say the wiring is a mess would be an understatement.
Last edited by Ol' Grouch; Sep 3, 2024 at 07:53 PM.
Reason: i kant spel wurth a durn
Found the problem. This is an old plow truck and you know those NEVER have any rust issues.
Got to poking around and about 5 or 10 minutes later, I found the trouble child.
You can see some green corrosion fluff on the connection. It took about 10 minutes to unbolt, sand the corrosion off, slap a little dielectric grease on it and reassemble. Hooked the batteries back up, fired the truck up. 14.56 volts running.
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It's not that I can't find them, this is just a new vehicle to me and I don't know where everything is. If it was an older or newer Ford, I know where stuff is.
