Okay here's my problem. When I get in my truck at night, start it, and
then turn my headlight switch to "on" it takes the lights about 10 seconds
to come on. Also, when they do come on, my voltage meter goes down, and
all my interior lights dim. Do I need a new alternator? With my
headlights off, the alternator charges fine (unless I try to turn on the
AC). Please help!!!!!!!!!!!!!

Greetings,

First thing to do is take your truck to a local auto parts store that tests
batteries and alternators and have them hook up their machine and tell you
if anything is wrong. Usually takes about 10 minutes in the parking lot.
If the alternator or battery isn't the problem, replace the headlight relay
in the electrical center under the hood. A worn or shorted relay could
possibly give you the symptoms you describe as well.

Cheers - Jonathan

"sgtclint" <clint.r.williams (AT) us (DOT) army.mil> wrote

I had the same problem, took about a year for the switch to go
completely. Not hard to change at all.