I have a 2000 f150 pickup with v-6 my battery light came on and the gauge went all the way up to high, all other gauges shut off, and the abs light came on, a crackling sound came from the passenger s
I had the battery tested and it was good and they fully charged so I replaced the alternator and the
battery light went off and all other gauges worked correctly , but I still have no low beam head
lights,no int. dome light,and its still stuck in park and it is blowing out fuse # 15 Stop Lamp Switch,
Brake Shift Interlock, ABS, PCM
Module Inputs), GEM Module, RABS
Test Connector it but all other fuses are good. also replaced relays 1 and 2 Interior Lamp Relay,
Battery Saver Relay, What could be causing this i e looked everywhere under the hood and under the
dash all wiring looks good I am lost.
The voltage spike created by your alternator created a short to ground by either melting a wire or frying one of the control modules. Find out what the blown fuse powers and one by one unplug what it's powering, every time you unplug something put a new fuse in to see if it still blows. When you get to where it doesn't blow then you know it's on that circuit. Since it has other control modules in the wiring, rigging up a test light in place of the fuse could cause added amperage to be pulled through the wires and through the good modules which could also cause them to fail.
The crackling sound from under the dash would seem to indicate a short circuit. I'd look there first for signs of a burnt wire Doesn't have to be something burnt completely with obvious signs. Just a small break in the insulation and touching any piece of metal under the dash. Look for signs of an arc on metal surfaces. But I suspect since it is blowing all the time, it's nothing something close to a metal brace which touches due to vibration.
The fuse blows as soon as power travels to it preventing current from flowing through the short, so there won't be any sparking.
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