My taurus has an issue. Whenever I drive over a mile or so my battery light comes on, my mechanic checked this out and says that the alternator is still charging the battery and the battery is new. Could this simply be my light being stupid (car has over 120,000)

If dash lights are popping on and off, and the cruise turns off, then you are experiencing an interruption in power (as if the ignition is turned off and on). You or the mechanic did not specify which fuse blew. That could just be coincidence. Considering you have the battery light, there is a chance you have a charging system problem. The car uses power generated by the alternator when it's running, and switches to battery power if the alternator stops outputting. If the car is using the battery, it will drain and cause power interruptions and ultimately, kills the battery. Check the serpentine belt, clean and inspect battery cables and posts - tighten clamps, get the alternator and battery tested (Autozone will do this for free). I'm thinking bad alternator. The only other thing I can think of is you have a short somewhere in the ignition wiring, or a faulty ignition switch. But the fact that it got progressively worse speaks to the charging issue. If you want to test the charging system yourself, let me know and I'll post a basic procedure.

check the condition and tension of the drive belt on the alternator. check for loose terminals . Check for moisture in the alternator and loose alternator terminals.

Have them check your fuel pump.

A good mechanic can run the codes easily.You can do it yourself with a proper code reader.Auto-Zone should be able to help,or Advance Auto. don-ohio

Drive your car to Auto zone and have them check your alternator, it is a free service, they can tell you if it is bad or not..Check the plug that snaps into the alternator,your wire connections might need to be cleaned. You can clean them with a small fingernail file..I have a taurus and I had that same problem..unplug the connector and file the wire side and the alternator side connection...

i would have the battery and alternator tested first. Voltage issues can cause some strange behavior.

you need to check to see if alternator is charging.make sure drive belt not slipping and check the alternators wires and fuses.if all is good get a volt meter hook it to battery your voltage should be 13.5 to14.5 volts while engine is idling if not your voltage regulator is going bad.

THE RED LIGHT SHOWS WHEN ITS NOT CHARGING I WOULD GET THE VOLTAGE CHECKED SHOULD BE PUSHING 13 TO 13.5 VOLTS WHEN CAHRGING

You have an Alternator or alternator connector issue, have Auto Zone or Kragen test the charging system, it is free, most likely the alt will need to be replaced.

need to check the wire from alternator to battery for corrosion and chave cables checked