Fuse Problems
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Fuse Problems
Does anyone have a diagram of the fuse box for a 1974 f350. I have a bunch for fuses under the drives side of the dash but the black plastic box they are in is not labelled in anyway. Also do people know where to get replacment fuses of the type these trucks use. Mine all look like little cylinders I took one to the local qutoparts store and they said they had nothing that old
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
See the top left of this wiring diagram for fuse locations: http://www.fordification.net/tech/im...aster_1of8.jpg
These are called glass fuses. All parts stores carry these.
These are called glass fuses. All parts stores carry these.
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Senior User
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I am not necessarily replacing fuses. My horn does not work and neither do my turn signals so I thought I would check fuses. I am trying to work on some other minor stuff while I try and get it running
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
The horn does not pass through the fuse panel.
To validate the turn signal fuse, turn the windshield wipers ON (to pull current through the fuse), then check that 12 volts appears on both sides of the fuse.
In the future, title your threads accordingly. This thread should be titled "Turn signal and horn problems," not "fuse problems." Fuses are your assumption of the source of a problem. When you title the thread this way, you're asking folks to peel back your logic.
To validate the turn signal fuse, turn the windshield wipers ON (to pull current through the fuse), then check that 12 volts appears on both sides of the fuse.
In the future, title your threads accordingly. This thread should be titled "Turn signal and horn problems," not "fuse problems." Fuses are your assumption of the source of a problem. When you title the thread this way, you're asking folks to peel back your logic.
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