HEAD LIGHT PROBLEM

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by BRS1955, Dec 3, 2019.

Dec 3, 2019 #1

BRS1955 Bobtail Member

37

20

Nov 16, 2016

Kentucky

0

right head light on 2007 379 pete goes off sometimes and is at the point where it is off more then it is on. I am thinking maybe a ground problem. does anyone know where it would be grounded. 3 prong connection.

BRS1955, Dec 3, 2019

BRS1955, Dec 3, 2019

#1
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Dec 3, 2019 #2

FreightyAK Light Load Member

51

42

Aug 7, 2018

AK

0

Check the wires from the harness plug foward to the light. Also check the wires that cross over from the driverside. Its common to find a bad wire there.

FreightyAK, Dec 3, 2019

FreightyAK, Dec 3, 2019

#2
Dec 3, 2019 #3

RocketScott Medium Load Member

563

892

Apr 10, 2013

Kentucky

0

Check by the hinges too. The wires can get pinched there

I believe the headlights ground all the way back inside the cab. If you have a multi tester you can check voltage and ground on the harness behind the bumper and at the firewall

RocketScott, Dec 3, 2019

RocketScott, Dec 3, 2019

#3