2010 Jeep Wrangler Sahara: New battery, new alternator and car wouldn't charge. Put an external VR and idles at 14V but revs at 17V so still not driveable. Any suggestions please.
Car wont charge
- Thread starter Taylor
- Start date
If you put a external regulator on the case of the regulator has to be grounded good, I always like to run a ground wire from a case screw to the alternator case. If it's not grounded good it will overcharge.
Did you completely remove the existing wires that went to the ECM? Can you link me to the regulator you used?
This is the Regulator I use for my Dodges (Chrysler) it says you might need a Modified Driver. Whatever that is but it says to contact them to find out.
ERCKFRM Combo - Heavy Duty Chrysler, Dodge, Jeep External Voltage Regulator Kit with Field Replacement Module
click on picture for more details
store.alternatorparts.com
I have this regulator. The alternator is not attached to the ecm any longerThis is the Regulator I use for my Dodges (Chrysler) it says you might need a Modified Driver. Whatever that is but it says to contact them to find out.
ERCKFRM Combo - Heavy Duty Chrysler, Dodge, Jeep External Voltage Regulator Kit with Field Replacement Module
click on picture for more detailsstore.alternatorparts.com
Do you have the Modified Driver or isn't it needed? Also I think it 's the one with a adjustment on the back to adjust your charging volts, is it?