04 f150 I recently changed the battery and alternator ... Battery light came on first.. Changed battery.. Light still on... Changed the alternator... Now battery and airbag light on.. Any ideas?

SOURCE: battery light flashes

Sounds like part of a wiring harness is shorting to ground or breaking a ground connection. Check engine to frame ground straps and engine compartment wiring. Look for loose or broken leads esp. alternator and battery wires. Perhaps the power lead to the computer is faulty causing the truck to misfire. Any engine codes?

SOURCE: air bag light

you probably blew the fuse. just replace the airbag fuse and the light should go off

SOURCE: 2002 mazda protege5 auto battery light coming on

I'm guessing that you've tested the actual current output of the alternator then. I'm assuming that the output is between 13-14Volts at the battery when the car is running... If it's too low, then it's not charging your battery at all, too high, and it's frying your battery.... Another thing that can cause this is if you have a short in your electrical system.. that, however, will be difficult to narrow down...

SOURCE: 1998 dodge intrepid battery light and heck engine

I have a 2000 dodge intrepid- the battery light was coming on and off for a few days and then the car just died. We checked and replaced the alternator and the car started right up (we did charge the battery for an hour before starting the car) but when you take the charger off the battery the car slowly dies. Please help?

SOURCE: 2000 ford expadition battery/alternater problem

I have a 2000 Ford Expodition, After changing the alternator for the third and final time, I jump started it several time till I could get it to a repair shop, the owner looked at several things and did a few test. then replaced the #1 fuse a 20Amp Power point fuse that was blown. it has worked fine ever since. BTW he did not charge me anything, made a new firend and customer.