so i was driving to my girlfriends house last night and one of my fuses for the radio didnt blow but started to melt off then i finaly got it pulled out and continued driving about 4 miles down the road i still smell stuff melting i get to a gas station open my hood and my altnator is on fire and all the cables are melting so i blew on that till i finally got it out could anyone tell me what the hell whent wrong where is the short in my truck that suckd

 

I'll bet that did suck!
Damn, never had that happen to me before.

 

Did you see what your voltmeter was reading during this time? Wondering if the regulator didn't fritz out??

Thinking either you had a serious overvoltage event (regulator), or a serious overcurrent event (short).

The alternator can supply a fair amount of current - for it to catch fire suggests a problem that will hopefully be easy to identify. Suggest to inspect the larger (+) wires for any insulation damage or other inadvertent grounding, and the smaller (+) wires for melted insulation - your radio leads would be a good place to start - did something in the radio circuit short out?

Not sure why the radio fuse didn't blow - was it the right size and type(voltage)?

 

no the plug on the alt goes bad and catches fire lol i got it all fixd thou