Voltage drop while driving


Asked by Sep 07, 2016 at 07:31 PM about the 1997 Ford Aerostar 3 Dr XLT Passenger Van

Question type: Maintenance & Repair

Alternator replaced,  battery replaced.

2 Answers


Aerostar has a voltage regulator on the left fender. This regulator controls the voltage. this could be your issue. Also check ground connections. Good luck :-)


A 97 will have the voltage regulator on the alternator itself, but the idea is right, also check the main harness at the alternator they are known to burn out.

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