There’s no fuse where there should be?
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5th Gear
Joined: Apr 2026
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There’s no fuse where there should be?
Hey sup guys so I just bought a 2008 f150 xlt off my uncle an I noticed there was no yellow 20fuse in position 9 the fuse fuel pump relay fuel injector spot. I asked uncle why it was missing an he didn’t know so I’m sure there hasn’t been a fuse in there for at least 6 years or. I googled if there should be a fuse in that spot an it say yes it is mandatory. But I don’t wanna go out a fuse in an something bad happen. Can anyone let me know anything about this I’d really appreciate it. Thanks everyone 🙏🏻
Fleet Mechanic
Joined: Jul 2019
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Try it. Worse thing you can do is torch the truck,
but you should have had an extinguisher nearby in that case.
What’s going on with the truck? Is there an FPDM issue that someone tried to shortcut since this is the injector fuse as well?
but you should have had an extinguisher nearby in that case.
What’s going on with the truck? Is there an FPDM issue that someone tried to shortcut since this is the injector fuse as well?
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5th Gear
Joined: Apr 2026
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everything is working fine. Just wasn’t sure if there should be a fuse in that spot or not. But like I said there hasn’t been a fuse in that spot in at least 6 years with no issues. But I want to be sure what I should do. Thanks again
Fleet Mechanic
Joined: Jan 2023
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Something is not adding up here. Looking at wiring diagrams for all F150 engines in 2008 shows F9 controls the fuel pump relay and power to the fuel injectors.
Ebay shows 2004-2008 fuse blocks are interchangeable but some of them don't have a fuse in F9. The 2004 fuse list shows the injector and fuel pump are on fuse 34. Confirm the year of your truck. I didn't look at every year for 04-08. But the fuse configuration changed during that period.
Ebay shows 2004-2008 fuse blocks are interchangeable but some of them don't have a fuse in F9. The 2004 fuse list shows the injector and fuel pump are on fuse 34. Confirm the year of your truck. I didn't look at every year for 04-08. But the fuse configuration changed during that period.
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5th Gear
Joined: Apr 2026
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Yes my truck is a 2008 f150 xlt. 2 wheel drive.
4.2l V6. Im guessing I should just leave that fuse spot empty if it hasn’t had a fuse in it since at least 6 years ago im guessing it should be fine but I just wanted a second opinion. My luck I would put a 20 fuse in it an my dam truck will burn to the ground 🤣.
4.2l V6. Im guessing I should just leave that fuse spot empty if it hasn’t had a fuse in it since at least 6 years ago im guessing it should be fine but I just wanted a second opinion. My luck I would put a 20 fuse in it an my dam truck will burn to the ground 🤣.
Fleet Mechanic
Joined: Jan 2023
Posts: 1,316
Likes: 445
If it's not broken....
Maybe the fuse box was replaced years ago with an earlier version? Some things will never be known.
Maybe the fuse box was replaced years ago with an earlier version? Some things will never be known.
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