Ford Truck Lights Flicker

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.

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. This truck has battery temperature sensors in the battery tray dodge trucks cycle the pcm controlled voltage regulator on and off at a set voltage of 12 8 volts until the batteries reach a specified temperature this will cause dash over head and head lights to pulsate. The voltage should be over 13 ideally over 14 volts. Generally flickering dash lights indicate an alternator replacement but this is often confused with a starter replacement.

Flickering or pulsing dash lights certainly indicate a problem with your car but determining the exact cause is usually a job left to a mechanic with the right tools to test the electrical system of your vehicle. So as the unit hits the dead spot the power wanes causing the lights to flicker. 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.