Question about 1991 Ford F250

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Its not turning over, i replaced the starter relay, the starter and put in a new battery. nothing comes on in the cab except the headlights, cab lights, tail lights,horn & the warning sound that comes on wen u open the door. everything else isnt working an example the heater, windshield wiper, panel, electeric lock or window.

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  • Ford Master
  • 6,826 Answers

Look for a fusible link or fuse link off of the starter or a set of fuses or Maxi fuse that is blown in the fuse box.

Fuse Link The fuse link is a short length of special, Hypalon (high temperature) insulated wire, integral with the engine compartment wiring harness and should not be confused with standard wire. It is several wire gauges smaller than the circuit which it protects. Under no circumstances should a fuse link replacement repair be made using a length of standard wire cut from bulk stock or from another wiring harness. To repair any blown fuse link use the following procedure:

  1. Determine which circuit is damaged, its location and the cause of the open fuse link. If the damaged fuse link is one of three fed by a common No. 10 or 12 gauge feed wire, determine the specific affected circuit.
  2. Disconnect the negative battery cable.
  3. Cut the damaged fuse link from the wiring harness and discard it. If the fuse link is one of 3 circuits fed by a single feed wire, cut it out of the harness at each splice end and discard it.
  4. Identify and procure the proper fuse link and **** connectors for attaching the fuse link to the harness.
  5. To repair any fuse link in a 3-link group with one feed:
    1. After cutting the open link out of the harness, cut each of the remaining undamaged fuse links close to the feed wire weld.
    2. Strip approximately 1?2 in. (13mm) of insulation from the detached ends of the 2 good fuse links. Then insert 2 wire ends into one end of a **** connector and carefully push one stripped end of the replacement fuse link into the same end of the **** connector and crimp all three firmly together. NOTE: Care must be taken when fitting the 3 fuse links into the **** connector as the internal diameter is a snug it for 3 wires. Make sure to use a proper crimping tool. Pliers, side cutters, etc. will not apply the proper crimp to retain the wires and withstand a pull test.
    3. After crimping the **** connector to the 3 fuse links, cut the weld portion from the feed wire and strip approximately 1?2 in. (13mm) of insulation from the cut end. Insert the stripped end into the open end of the **** connector and crimp very firmly.
    4. To attach the remaining end of the replacement fuse link, strip approximately 1?2 in. (13mm) of insulation from the wire end of the circuit from which the blown fuse link was removed, and firmly crimp a **** connector or equivalent to the stripped wire. Then, insert the end of the replacement link into the other end of the **** connector and crimp firmly.
    5. Using rosin core solder with a consistency of 60 percent tin and 40 percent lead, solder the connectors and the wires at the repairs and insulate with electrical tape.
  6. To replace any fuse link on a single circuit in a harness, cut out the damaged portion, strip approximately 1?2 in. (13mm) of insulation from the 2 wire ends and attach the appropriate replacement fuse link to the stripped wire ends with 2 proper size **** connectors. Solder the connectors and wires and insulate the tape.
  7. To repair any fuse link which has an eyelet terminal on one end such as the charging circuit, cut off the open fuse link behind the weld, strip approximately 1?2 in. (13mm) of insulation from the cut end and attach the appropriate new eyelet fuse link to the cut stripped wire with an appropriate size **** connector. Solder the connectors and wires at the repair and insulate with tape.
  8. Connect the negative battery cable to the battery and test the system for proper operation. NOTE: Do not mistake a resistor wire for a fuse link. The resistor wire is generally longer and has print stating, "Resistor: don't cut or splice."
Fuses Fig. 1: Remove the cover from the fuse panel its not turning over, i - 88286p27.jpg
Fig. 2: Use only the fuses specified for the circuit 88286p28.jpg
Fig. 3: Firewall-mounted fuse box, turn signal and hazard flashers 84926100.gif
Fig. 4: Instrument panel-mounits not turning over, i - 84926101.jpg 84926101.jpg
On earlier models, the fuse panel is located on the firewall above the driver's left foot. On later models, the fuse panel is located on the underside of the instrument panel, covered with an access door. prev.gif next.gifprev.gif next.gif

Posted on Oct 15, 2010

  • Duane Wong
    Duane Wong Oct 15, 2010

    Some diagrams are represented by an 'X' that you can click on.
    Not all diagrams transfer over to
    So, it may be necessary to subscribe to a service like or or get the manual for your vehicle and look over the schematics and the diagrams.

    Good luck on this repair.



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