Have a 2007 Dodge Charger 5.7 hemi everything worked fine before I replaced my engine now I can’t get the dang thing. To charge I’m not getting power to my alternator an the reading from the alternator positive post is erratic up an down idk I’ve tried everything running new grounds an replaced battery an alternator starter I’ve got ground to all my grounds an my battery idk wtf it can be I’m thinking pcm I’m going to buy a external regulator an by passing that stupid thing it’s unnecessary idk why dodge done this besides money which is obvious plz help

 

What year engine did you put in it?

 

Lol so much for being detailed haha 😂 I put the 5.7 in it reman straight from auto zone it’s a sure fire reman but I haven’t got power to the 6 gage wire got to my positive post on my alternator I hooked a external regulator up today an it didn’t Charger it so I need to make sure I got it connected correctly an then go from that step to seeing if maybe I got a spilt in the wire it starts an runs fine but just won’t charge idk what going on I thought about running another ground From the chassis to the starter or something I’m out of ideas border line broke I have over 8 thousand in this car thought why by new replace the engine the I know what I got so what I’ve done so far tried bypassing the internal regulator I think I don’t have something right but a dodge mechanic said it wouldn’t work I don’t by it guy that sold me the regulator showed me that it would engage the alternator so new battery starter alternator only thing I haven’t replaced was the positive wire the goes from the alternator past the start ext I was getting a erratic volt reading took it to get it benched test dude has done it for 40 yrs aka he sold me the voltage regulator the alternator tested good I don’t get it I’ve got grounds going to my ground wires this is a head scratcher I’m really aggravated I’ve spent most of my saving trying to get a dependable car because I travel for work I’m a nursing assistant an I’m hard on vehicle that’s why I just replaced the engine I did it my self but I don’t get it other then charging it runs great I’m gonna disconnect the fuse boxes an test the wiring leading to the relays to make sure I don’t have no breaks or burnt wires thanks for the replay srry about the long reply any help or other step would be appreciated this is a pretty electronic car s

It’s a nice car

Valve seats dropped that’s why I just replaced the engine probably could have got away with heads but hey

 

Srry about grammar I hate my iPhone