[wizar641]

I have a 2001 F150, The alternator went out, so I replaced it. The new one would peg the gauge and the light blinked off and on, then stopped working. I have put 3 new ones one after, and they all do the same thing. Can anyone help? Thanks

 

[levittownfordparts.com]

Did the new alternators include a new voltage regulator with them?