Why am i losing power in my 2003 crown victoria

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Ideas in the link

https://www.google.com/search?q=2003+Ford+Crown+Victoria+has+no+power+to+PCM

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electrical issues since replacing alternator & battery - Mazda 6 ...

forum.mazda6club.com > Mazda6 (Atenza) > Newbie Section

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Battery Light Due to Damaged Alternator Wire Harness ...

repairpal.com > Problems > Ford > Crown Victoria

Battery Light Due to Damaged Alternator Connector on Ford Crown Victoria ... how can i turn off the airbag light on a 1991 crown victoria made by ford ... the battery light onreplace alt and batt light still what else can it be? thaqk. it sat for two weeks when we had snow i used my truck staqrted car light comes on and stays on.

Airbag light = bad battery - Maintenance, Recalls and T

a lose belt or and pulley.

Here is the information you needed. I hope it helps and good luck....

voltage regulator?
bad alternator - yes you may have gotten a bad one.
main fuse.
wiring - did you put all the wires back the right way?
test the battery in the car.
1. voltage at battery not running 10-12 volts
2. votage at battery car running 13-14 volts
if all is well - you may need to reset computer / replace computer.

If at the begining the car would run at a longer time span than now replace the coil. Coils tend to die out slowly

this is just a loose fuse or connector wiggle the connector of the lighting control module just above you gas pedal under the dash.turn lights on try to kick slightly the module(black metal box).Sometimes you need to open it and re apply heat and solder on the relay terminals fixed on the board.

easiest check is to put a voltmeter on the battery posts. Should be 14 volts or over with engine running. If not alternator may have 1 or more bad diodes.

Also, clean all the battery connections, incluidng small wires on poitive post, if present.

remove the pos terminal if its still running it has a bad alt

I have a 2003 with the same problem. I thought it was the alternator but after i swapped it out the problem continued. Any other ideas?