lugnuts

Hey fellas!!

I'm new to this forum.

I just got a 93 3500HD and after a month it has a wiring problem with the lights, the wiring harness doesnt look so great under the dash. I looked online for a replacement harness but couldnt find anything.

They used to work if you gave the dash a tap but now they are not working at all. headlamp'sside markers& dash lights. dome light works fine.

has anyone had this problem? or know of any company's that sell wiring harness?

thanks in advance!

lugnuts

No one knows if chevy sell's a replacement harness?

The engine also seems to stumbleon real light throttle

Outcastz89

Look on the painless website for a harness. Just google search Painless wiring. I'm not completely sure if they have what you're looking for. They should have something similar though. Otherwise, you could just get a multimeter and wiring diagram and start testing the light circuit.

x1cn18

possibly the switchm and i know alpot of people had problems with the plug for the switch meltin