george88gta

iTrader: (2)

Getting my truck ( 2003 Silverado 1500 WT ) ready for NYS inspection. When checking the headlights, I noticed that when I switch to Hi Beam, the LO Beams go off?????? On my other vehicles, all 4 lights stay on when switched to HI Beam.

Feed

iTrader: (2)

That's normal. You can do the '4 hi mod' to keep them all on if you wish

george88gta

iTrader: (2)

Thanks, you made my day!!!!! After all the grief I had getting the brakes up to par, the last thing I wanted was to tackle an electrical issue. Its funny that my 02 Transam, 09 G8 and my 2015 Colorado, all have 4 lights on. Had me worried.

silver-mod-o

iTrader: (15)

Just search '4hi mod' and you should come up with what you need to make it like your other vehicles.

george88gta

iTrader: (2)

Sounds like it would be an interesting project. I wonder if the base wiring could handle the extra load since it wasnt designed with that in mind.

silver-mod-o

iTrader: (15)

I know guys who have had theirs this way for literally a decade with no ill effects. I'd trust it. You're right. It's probably not "designed" for the load, but a pickup was never "designed" to do what most of here do with them either.

91LT16SpeedFormula

iTrader: (35)

If I remember right they sell a relay kit designed for that purpose or you can make your own real cheap