1990 k5 blazer electrical short

[blkwagon]

my girlfriend has a 1990 k5 blazer that wont run. A few nights ago we went to leave a friends house and it was running and she turned the headlights on and the truck died and wouldn't start back up. i had it towed to my shop the next day and i have been lookin around but haven't seen anything yet. i have got it to start and run and then it dies if i turn the lights on. Has any one ever had this problem or have any advise that would be great. tomorrow before work im gonna go down and start pulling the dash apart and tracing the wires looking for shorts cause the guy who she bought it from did a horrible job wiring...thanks

 

[blkwagon]

any one w/ info??

 

[ryoken]

Is it popping fuses?

 

[blkwagon]

no fuses that i can find. i got it to start and run with the headlight switch unplugged so now i am going to sort through the mess of wires.