My '04 Endeavor blew an ignition fuse and now won't crank!
I replaced the 40amp fuse and checked battery strength but still no ignition. It makes no sounds what so ever to give me an indication where to look next. I tried disconnecting the battery hoping to get a computer reset but that didn't work either. Any suggestions?
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You have a 40amp fuse for the key switch, and the main component on the 80amp circuit is the alternator. I would disconnect the alternator, hook up the battery without the fuse, and use a test light across the 80amp fuse terminals to see if the short has been removed.
many things will cause no start problems could have faulty ignition switch.use test light see if power going to starter if not check ignition fuse to starter.if power going to starter, more likely starter solenoid or starter faulty.if ignition fuse okay and starter and solenoid okay still no start problem could be in the ignition switch or inhibitor switch faulty.code scan for faulty theft security system which will also cause no start conditions.
The reverse polarity will have "zapped the radio"
There is a possibility that only the supply fuse has "blown", but depending on the radio make, could have blown the internal fuse as well.
Also, there is again the distinct possibility that other supply circuits failed with this Reverse polarity energy supply.
Work across each supply circuit in turn, now the Battery is connected properly.
Ignition warning lights, gauges etc.
Headlights, Turn signals.
Remote locking, Alarm.
Engine startup, Alternator charge output.
A/c operationand Heater/Blower controls, and function.
Best of luck.
i would say you have a mains problem?any car that blows a 40amp fuse has a big fault.you have a direct short in the alternator/starter/battery area.take a very close look, as this type of fault will show its face pretty quick, check all heavy wires to and from starter/battery,and if satisafied get the alternator checked as it could be the problem.adrian,,,
check power to the starter with a test light, (the smallest wire should have 12 volts when you turn the ignition to crank, have someone crank it whilet test light is connected to small wire, the other wire coming from battery also should always have power, if there is no power coming then it is wire or ground problem, if you have power when you turn ignition it is the starter that has failed and needs replacing.... make sure you have emergency brake on, wheel chucks and car in park before you go under at all times.... use led flashlight to locate the wires on the starter....
Most likely to be one of two things: a bad ignition switch or a blown starter fuse. I think at the front left side of the engine there is a relay box on top of the engine, inside this is a 40amp fuse for the starter. Replace this. (It may be in a different location on a '94 - check your owner's manual) Wiring harness faults at the steering column is a common problem with Dakotas and these can develop a short circuit that will blow out the starter fuse. You may want to carry around a spare fuse with you.