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camerontech, Technician
Category: Jeep
Satisfied Customers: 482
Experience:  diagnostic auto tech
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My f22 fuse blows repeatedly

Customer Question

my f22 fuse blows repeatedly
Submitted: 1 year ago.
Category: Jeep
Expert:  camerontech replied 1 year ago.

hi there,

Im cam, and ill try to help you out.

The fuse 22 is for the fuel? am i correct?

I dont know what size engine you have but i have had 2 of these jeep engines with that fuse blown.

Both times there was a wire that was rubbing on the back of the fuel rail.

This is near the back of the engine as the harness rubs on it and blows the fuse.

Replace the fuse and pull on this harness a bit and see if it blows while you are inspecting it.

I hope this helps and you have the same issue i have.

let me know


Expert:  camerontech replied 1 year ago.

im sorry, i forgot to mention... they were both 4.0L's


Customer: replied 1 year ago.
its a 4.0, yes its for fuel pump relay. that thought had crossed my mind after I resently found that it was for the fuel pump. thank you
Expert:  camerontech replied 1 year ago.

nop problem.

check that harness out.

If thats ok, than check the wire to the fuel pump, make sure its not rubbing any where and grounding out.

IF all the wiring is ok, than check the amperage draw on the fuel pump. IF the fuel pump is drawing too mutch ampreage it will blow the fuse as well.

I hope its just in that harness though, lol.

that would be a nice easy fix.

let me know what you find!


Expert:  camerontech replied 1 year ago.