Ford Truck Lights Flicker

These faults can range from a bad ground to an failing alternator to a simple abraded wire.

Ford truck lights flicker.

The most common reason for flickering lights is a worn out alternator as one of the three rotating plates that generate electricity wears out. Combined with the headlight s inherent visibility this attribute will often make a car s running lights the first components to suffer from electrical system faults. The problem is well known to ford and the cause is that there is a high resistance in the battery wiring harness from the central junction box under the bonnet to the b terminal of the alternator the high resistance from the 7 5amp fuse causes the alternator to pulse and this causes the flickering of the lights both insisde and out and on the. So as the unit hits the dead spot the power wanes causing the lights to flicker.

The problem is worth looking into since flickering headlights can indicate a serious. Generally flickering dash lights indicate an alternator replacement but this is often confused with a starter replacement. The voltage should be over 13 ideally over 14 volts.