5.7 HEMI Alternator ?

[BadAss71]

I have a brand new alternator from an 03 hemi ram. I have figured out how to mount it to my 440 no problem, but how will I get the damn thing to work! After doing some research I have found that the ecm is what controls the alternator. How can I get around this? I know someone here has an answer! Thanks for any help.

 

[johnparts]

The thing should default to full field with no pcm hookup

 

[skykeith]

Most (maybe all) of these late model Mopar alts. still have 2 field terminals. Some test equipment manufacturers make an on car tester that is just a regulator inside a box. It works by disconnecting the field terminals from the alternator to isolate it from the computer and then plugging in the tester. The tester is wired exactly like the standard Mopar electronic regulator setup (battery voltage on one terminal and the regulator on the other). You could try wiring it up with a stock regulator and see what it does.