I have recently noticed that when I turn the 4wd selector switch to 4 high, i will hear a click but the light doesn't come on. Any help would be great, thanks in advance.

 

ive recently noticed the same thing. im curious what it could be too

 

Do the lights come on during engine start to let you know that the bulbs are good?

 

yes, mine do

 

Yes, my bulbs are good

 

Mine does this also, but then it doesn't come out of 4wd hi very quickly when ya switch back to 2wd. I'm gonna try and get it checked out next week.

 

My 04 is the same. 4wd works fine, but the indicator lights do not come on...

Yes they work. You can see my low and high lights when you turn the key on.

 

*bump*

I have the exact same thing happening to me currently. Both bulbs come on when I start the truck, but when I put the selector in 4hi, the light either comes on for a moment or not at all. all four wheels spin in gravel, and goes into 4lo without problems. I took mine to the dealer yesterday, and they said they couldn't find any problems. What did your dealer tell you?