Check the alt. with a volt meter right at the alt. This way wiring will not be the problem. If no charge, replace the alt.
For a 1992 Ford Crown Victoria : ( it came from the factory with 5W-30 )
A 1992 Ford Crown Victoria came from the factory with ( 5W-30 )
For a 1992 Ford Crown Victoria : It came from the factory with the PREFERRED oil ( 5W-30 )
Ford Crown Victoria Police Interceptor was created in 1992.
$28.18 U.S. ( MSRP/list ) according to fordparts.com
Chris -Ford Tech...
In the fuel tank.
The Ford Crown Victoria has an automatic 4-speed overdrive transmission. In 1992, the transmission was redesigned to include electronic controls.
The Ford Crown Victoria was first introduced in 1955 and discontinued in 1956. The more popular Crown Victoria models were produced between 1992 and 2012 when the Crown Vic was rereleased.
Some Ford models had a external voltage regulator. If yours does, replace it.
Sounds like a defective voltage regulator
odometer fuse 92 crown Victoria