I have a 2000 c3500 with a 7.4 liter and auto trans. It has about 159000 miles on it. The other day I noticed that my low beam headlights were not working. I turned on the high beams and they came right on. I switched back to low and still nothing. I have day time running lights (low beam headlights) that are working fine. If I turn the switch to off or parking lamps, the day time (low beam) lights are on. When I turn the switch to on, the low beams go off. The high beams will still work though. I tried changing the switch and that did not help. I bought a new headlight relay but, I can't find where it is on the truck to replace it. It is not in the relay/fuse box under the hood.(Left of the steering column) It is not on the block under the dash either. Where could I find the headlight relay and do you think that it may be causing my poblem? Thank you.
have the same problem?
Monday, November 19th, 2007 AT 8:22 PM