Truck wont start
02-03-2008, 02:16 PM
#1
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Truck wont start
05 F150 wont start, dont think im getting fuel, and i dont hear the pump come on when i turn the key, checked the accident fuel cutoff switch, its not tripped, is there a fuse and or relay for the fuel pump ?? dont see one listed in the book, theres a small panel under the hood with relays but they do not specify being for fuel pump ? Can the inertial cut-off be bad ?
Thanks
Thanks
02-03-2008, 05:59 PM
#2
Senior Member
Could be many things - the computer not telling the relay to engage, failed relay, bad wiring, tripped inertia switch, bad pump. Suggest this is going to be a divide-and-conquer event to find the breakdown.
Older inertia switches are known to fail, although it's not a widespread problem. In other words, I doubt yours has failed, but it's worth checking out just to be able to cross it off the list of possibilities. Could try to ohm across the switch terminals with a multimeter, or for troubleshooting purposes only, jumper the switch out.
If you listen carefully when you roll the key to ON, should be able to hear the relay engage.
Older inertia switches are known to fail, although it's not a widespread problem. In other words, I doubt yours has failed, but it's worth checking out just to be able to cross it off the list of possibilities. Could try to ohm across the switch terminals with a multimeter, or for troubleshooting purposes only, jumper the switch out.
If you listen carefully when you roll the key to ON, should be able to hear the relay engage.