Check seat switch
neutral safety switch
power to main contactor
does the contactor close?
SOURCE: '91 Ford Econoline - No spark still. Found no
change the ignition module for a NEW one ,not a secondhand one
SOURCE: Blowing brake light fuses 1988 E150. Brake switch
To Track down the problem you need to disconnect the Battery and use a Multimeter set to OHMS.
You are grounding somewhere. Start with the Brake switch and see if it is grounded. Then take off the wires to the switch. Check the wires going to the switch and coming from the switch. One side has to be the problem. Check with a parts place like Autozone or Oreillys for a Brake relay in the power box. If the power wire is grounded unplug the Brake relay and see if it drops the connection.
If it is a wire problem, keep tracing the grounded wire until you find a connection you can unplug to make the Ohmmeter drop. Remember the overhead Brake light on the roof. You may have just worked on the Taillights. The bad wire may be grounding in the roof or on the frame.
Once you isolate the bad wire you may want to run a new one.
SOURCE: Battery light comes on. Had
OK, sounds like a bad voltage regulator or loose belt. But, it's more likely a voltage regulator on the alternator that is not supplying enough voltage to the battery over time.
For maximum peace of mind, I would have the alternator replaced if you experience any starting problems attributable to a weak or undercharged battery.
14.45 volts doesn't sound bad to me, for an initial voltage, but there may be a problem with the alternator (like a bad diode trio) , which controls the battery charge light pretty directly.
SOURCE: The beast wont start on the key, battery ok , ign
Hello! The Inhibitor relay is more than likely not pulling...If the vehicle is an automatic the selector switch passes battery when in park on a yellow wire to the relay...If a standard the clutch switch passes ground...if manual, relay is called clutch interlock...located under hood...passenger side fender...Automatic...called interlock relay...drivers side fender to the right of air intake...diagram may be to small to read but I'm limited on size...Light Green wire on clutch switch supplies ground when switch is closed pulling relay...Yellow wire off gear selector switch (park) supplies battery to the inhibitor relay...Wish I knew if your vehicle was man. or auto...See if proper batt. or gnd. is present to pull relay...If proper potential is present and the relay does not pull it is defective...Send a comment...
Guru........Saailer
I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867
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