Super Duty & Heavy Duty1999 to current Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
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Hey guys, my fuel pump isn't running and I can't start the truck. I just checked the voltage at the pump connector. I only got a 4.6 volt reading from one wire. I checked the inertia switch and it wasn't tripped.
I'm assuming there's an issue with the fuse, inertia switch, or relay. My truck did not come with an owners manual so I cannot locate the fuel pump fuse. Does anyone know which fuse it is? My fuse panel is located under the steering wheel.
I've heard the relay is behind the radio, is there anything I should know about taking the radio out to access it?
Unfortunately Ford does not have the 99' f250 SD owner manual on their site .. I've lookeds through all the other manuals for similar trucks, but cant seem to find any that have the same relay/fuse setup. My relays start from #301 up under the steering column. I only found one full relay under the hood, with 2 half relays sharing the same box...
Any help? I'm desperate, as I need to move truck by tomorrow...
Are you SURE about the year of your truck? I went through the schematic of the thing and it does not show the fuse/relay numbers like you describe until after 2002. I can check it by VIN if you want to pm it to me.
2000 Ford F-250 Supercab, 7.3 PSD, Auto, Bone Stock, 202,400k. 08 SD tailgate.
2011 Ford Escape Limited, V-6, For the wife.
After switching around all the relays many times, I finally was able to get the fuel pump running by pushing Relay 302 to the side. After it closed and opened a few times I was able to get it started while giving gas . All seems well now. I guess it must have been corrosion on the relay socket terminals?
Will have to see how long till it happens again..
Wish I knew all this before I pulled my radio and broke the retaining clip.
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