daytime running lights

[02_denali_guy]

daytime running lights not workin. worked when i bought the truck, changed out bulbs for leds, one worked, now both dont work. any ideas?

 

[ScottyBoy]

Try new bulbs and check the drl fuse in the underhood fuse panel.

 

[chip]

Check your wiring. Leds must be hooked up correctly to operate correctly. If that doesn't work, check fuses and relays.

 

[denalianyone]

Save money by not replacing them. No real need for them anyway.

 

[gdddup]

Save money by not replacing them. No real need for them anyway.

x2

 

[02_denali_guy]

ive checked the fuses and relays and they still good. i noticed the inside of both plugs are black, wonder if i could have fried the plus sumhow?

 

[chip]

Mine look like that too. I think it's just cheap materials. Have you tested the wires for juice yet? If not, get a DMM or a test light and see where you're losing juice.

 

[A623Z]

LED's don't last in tahoe's due to the voltage spikes, try swapping out with 4114 bulbs so they can take the spikes

 

[chip]

LED's don't last in tahoe's due to the voltage spikes, try swapping out with 4114 bulbs so they can take the spikes

That explains so much, about other things. What do you know about these voltage spikes?