Forum Discussion

MEXICOWANDERER's avatar
MEXICOWANDERER
Explorer
May 01, 2019

Dual Alternators? One or Both Is/Are Computer Controlled?

There is a serious lack of intelligent information on the net about factory OEM dual alternator setups. This is aimed at folks who own a dual alternator setup. Are your alternator output circuit...
MEXICOWANDERER's avatar
MEXICOWANDERER
Explorer
May 02, 2019
What modifications to the system would throw a code and perhaps force the circuit into open loop. Limp home.
Ford ECU /Forces one alternator to work as much as 90% capacity then cuts in the 2nd alternator as needed. Or the check engine light comes on and a code is thrown.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,367 PostsLatest Activity: Mar 10, 2026