Headlight mystery help

[Doug118]

08 Escalade. My driver side headlight was going in and out and finally stayed out. I changed the ballast with an oem one and drivers side headlight worked but pass now stopped working. Turned truck on and off a few times and both worked for about a week and now the drivers side is back out

Is there some sort of known issue with these trucks that causes problems like this? Also, anyone happen to know where the headlight harness ground is? I have a feeling it’s a headlight harness issue and would like to rule out the ground first

 

[Doubeleive]

08 Escalade. My driver side headlight was going in and out and finally stayed out. I changed the ballast with an oem one and drivers side headlight worked but pass now stopped working. Turned truck on and off a few times and both worked for about a week and now the drivers side is back out

Is there some sort of known issue with these trucks that causes problems like this? Also, anyone happen to know where the headlight harness ground is? I have a feeling it’s a headlight harness issue and would like to rule out the ground first

most HId issues are ground/power/ballast. and last culprit is the bulb
grounds should be on the left & right bottom side of the radiator support (you have to to pull the bumper cover off to access
not sure if this video is any help or not

 

[Doug118]

Wild conclusion. I never in a million years thought it would be a fuse with the way the lights were going on and off originally then worked fine for a while. Well I was bored and checked the fuses. Both look fine but I NEVER trust how a fuse looks. Decided to switch them to see if the problem went to the opposite side.. somehow both headlights now work with no issue (so far)