My driving lights have failed and weird enough the left low beam does not come on either . Im not sure where to start either headlight switch or fuse box ,Both Hi beams come on just fine ..
01 1500 5.9

 

2 or 4 headlight system?

 

Im having a similar issue as you that started about a week ago where my cluster an my stop lights and running lights are out and my fuse 20 keeps popping I've tired switching to bigger fuses and that worked for abit but I'm back to the drawing board. If you find anything that works for you let me know! the cops in my town have been looking for my truck for days because I don't have working lights and the wanna VI me

 

stock 4 light nonsport 2nd gen

 

4 light NON-sport? The 4 headlight systems only came on the sport package. Everything else has only two. Was your truck modified from factory stock?

 

sorry should have said two lamp i put sport light lenses in cause i got em cheap but its still a 2 lamp system but its a non sport as i said ... also lack of circulation in cooling system rad was old and crappy replace dit and the stat and still lower hose not getting hot , guess the next thing is pull the stat and see if the water pump is done .Thanks again ...

 

Lower hose is the return from that rad. The upper gets hot first.

 

I know upper gets hot first ,it ran 20 minutes and temp is up and hose is cold ....

 

If the engine gets up to temp, and the heater works good, temp on the lower hose simply doesn't matter.

 

Get one of these, had the same issue on my sons truck. Drain your radiator and refill with this funnel, gets all of the air pockets out. Changed the water pump, temp sensors, thermostat (drilled hole) and radiator hoses on the truck, wasn't showing hot, but bottom hose was cold, so nothing flowing through the radiator. Refilled coolant with this thing, no more issues and good flow through bottom hose.