Wiring from alternator to battery or bad voltage regulator.

Test the alternator.
Engine running. Voltage across battery terminals should be 14 to 14.5 volts.

Edit. Some help on the alternator for a Zetec.
http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=979000&fpart=1&PHPSESSID=

and
http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/1b/c3/18/0900823d801bc318.jsp

Last edited by Tony2005; 06/28/06 02:31 AM.
"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles