Fuel pump won't fire
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Cross-Country
Joined: Feb 2013
Posts: 85
Likes: 3
From: Gibsonville,NC
Fuel pump won't fire
Having an issue with my 86' F-150 XLT Lariat, 302, w/AOD. Jumped in it today to go mow for a guy & it turns over fine, but won't crank. I did not hear the fuel pump engage like usual & went to check fuses. Found one blown (hooked to the starter solenoid) & replaced it, still wouldn't crank. Did some searching through out the forum and found out about the fusible link. Turns out the wire is broken into. I can put the wires together with the key own and the pump fires. My question is can I cut off the broken part and splice this together without any issues? Thanks!
Thread Starter
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Cross-Country
Joined: Feb 2013
Posts: 85
Likes: 3
From: Gibsonville,NC
Fuel pump won't fire
Having an issue with my 86' F-150 XLT Lariat, 302, w/AOD. Jumped in it today to go mow for a guy & it turns over fine, but won't crank. I did not hear the fuel pump engage like usual & went to check fuses. Found one blown (hooked to the starter solenoid) & replaced it, still wouldn't crank. Did some searching through out the forum and found out about the fusible link. Turns out the wire is broken into. I can put the wires together with the key own and the pump fires. My question is can I cut off the broken part and splice this together without any issues? Thanks!
FTE Legend
Joined: Nov 2015
Posts: 30,897
Likes: 4,119
From: Angier, NC
They sell new fuse links in the help area or the electrical area of the parts store. The ones I have bought they had butt connectors to hook them up with.
You want to cut back to the normal wire, just after the big rubber black thing, and splice in the fuse link there.
I would replace it over trying to splice it.
Now why did it blow like it should if there is an over load on that system, that is the question?
BTW turn over & crank are the same thing. Now it turns over or cranks but will not start / run or even " try to light off" is what you wanted to say.
Dave ----
You want to cut back to the normal wire, just after the big rubber black thing, and splice in the fuse link there.
I would replace it over trying to splice it.
Now why did it blow like it should if there is an over load on that system, that is the question?
BTW turn over & crank are the same thing. Now it turns over or cranks but will not start / run or even " try to light off" is what you wanted to say.
Dave ----
FTE Legend
Joined: Nov 2015
Posts: 30,897
Likes: 4,119
From: Angier, NC
Oh I got to ask, why is the jack laying across all them wires?
That is a good way to short them out and if lucky blow a fuse or fuse link.
Un-lucky, it all melts and catches fire and burns the truck to the ground.
Dave ----
That is a good way to short them out and if lucky blow a fuse or fuse link.
Un-lucky, it all melts and catches fire and burns the truck to the ground.
Dave ----
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Joined: Feb 2008
Posts: 5,831
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From: St Albert, Alberta
Your fuse-able link did not over load it's a fatigue/corrosion failure when the fail due to over load the insulation along it;s length becomes all melted and bubbled. 2 options here slam a new one in or use a non insulated butt crimp connector, coat the inside of the connector with something like noalox crimp it, then heat shrink the connection (be sure to put the heat shrink on before crimping) and you will be good to go. .
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Cross-Country
Joined: Feb 2013
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From: Gibsonville,NC
Fuel pump won't fire
FuzzFace2, You are correct Sir. Please excuse my wording on the OP. I was in a hurry, stressing & couldn't figure out exactly what I was trying to ask. LOL! Anyway, The fuse I replaced is tied into the starter solenoid on the + side, there's 3 wires coming off it. It's under the broken one, inside the white fuse bo
?). It may be hard to see. Not sure when it had been changed last, it was oxidized & green when I took out the blown one. Not sure what it powers. I ended up cutting off that rectangular piece & connecting the two with a crimp connector & Stake-on tool. Wish now I had put some heat shrink over top of it. DUH! The stupid jack is stuck & wont shrink anymore into its lowest position. The wires underneath look fine. I checked them while fixing this issue. Thanks for the help!
?). It may be hard to see. Not sure when it had been changed last, it was oxidized & green when I took out the blown one. Not sure what it powers. I ended up cutting off that rectangular piece & connecting the two with a crimp connector & Stake-on tool. Wish now I had put some heat shrink over top of it. DUH! The stupid jack is stuck & wont shrink anymore into its lowest position. The wires underneath look fine. I checked them while fixing this issue. Thanks for the help!
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