Hi, just joined the forum bought a used Dakota with 150k+ miles - had battery problem checked charging voltage at 15.4 Volt - thru research I found that this engine does NOT have a voltage regulator in the alternator --- what to do????

Thanks

 

Replace the alternator....

 

I’ve changed the battery the wiring harness, the alternator. I have changed it all out the PCM brand new and still my battery light comes on says it’s gonna be a wiring problem. I have no idea where to start. I change the wiring from the starter all the way up to the alternator to the fuse box so it’s gonna be something with the fuse box. we have 57,000 miles on so it’s still new