Where is the voltage regulator in a 1988 F150 Truck - ASAP Jun 21, 2009Where is the voltage regulator in a 1988 F150 Truck - Answered by a verified Ford Mechanic The wiring to the alternator where can i find the location of the external voltage regulator in my 1988 Ford F250 pickup. The manual states it is on the radiator wall near the front of the truck. Ford F150 Voltage Regulator - AutoZone Order Ford F150 Voltage Regulator online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store.
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