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A. Penland
A. Penland, Ford Senior Master Technician, ASE
Category: Ford
Satisfied Customers: 6565
Experience:  ASE Master Certified, ASE Advanced Gasoline Engine Performance
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my radio went out and I didnt find any fuses that were bad.

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my radio went out and I didn't find any fuses that were bad. I installed a new radio, and it didn't work either, which made me dig deeper. The fuse in the engine compartment power distribution box (position #1) for the radio was blown. I replaced it and it still didn't work, but the fuse didn't fail again. I checked the voltage at the PDB radio terminal and I'm not getting any voltage there, with key off or in ACC position. Any ideas?
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Customer: replied 3 years ago.
97 f350 powerstroke

Thank you. Check fuse #11 in the dash fuse box. The radio has 2 fuses.


Customer: replied 3 years ago.
I already did that. In fact, I checked all the fuses in both the dash fuse box and the power distribution box under the hood. When I checked the terminals in the power distribution box under the hood with my voltmeter, I didn't get any voltage there either.
The fuses are good but you are not getting any power at those two fuses?
Customer: replied 3 years ago.
that's correct. i checked the fuse terminals at the dash fuse box with a voltmeter and didn't have power. That's when I backtracked to the power distribution box. the fuse there was blown. I replaced it, and still didn't have power at the dash box. I went back to the pdb and checked the terminals there and don't have power. Do power distribution boxes ever go bad? I have power on all the other accessories in the cab except the cigarette lighter.
Do you have power on fuses #4 and #8 in the engine bay fuse box with the key turned on?
Customer: replied 3 years ago.
power at 8, not at 4
Look on the bottom side of the engine bay fuse box. You may have to remove the bottom cover to see the wiring. All three of those fuses #1 #4 and #8 get power from the yellow wires that connect the battery to the fuse box. Since #8 has power, the fuse box is the problem. Possibly a broken wire or corrosion inside the fuse box is the problem.
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