Hum in speakers, engine died

[explr1]

I had this happen twice now. Once last night and again this morning. I start the truck and let it idle for about 10 minutes. I then go on my marry way up the hill to the red light light with the heat on high and a CD playing. I then have to merge into traffic and hit the gas as usual, WOT. Well last night and again this morning as I give WOT the speakers start humming. I turned off the radio and the humming was still there until I let my foot off the gas. Then the humming goes away after 10 seconds or so. As I come to the next stop light about a quarter of a mile since merging, the engine dies as soon as I stop. Restarts right up and I have no problems after that. What could cause this? I have upgraded everything in the past year, 900 amp battery, new alt, IAC valve, plugs, wires. Could it be the cold weather? It was -4 last night and +3 this morning so said my temp in the overhead console. This is wierd. Any help would be great, thanks......

 

[alphabets13]

i could see the speakers humming from the cold. as for the engine, it could be b/c of the cold that it is stalling, but no matter how cold it is, it shouldn't. something has to be wrong for it to stall, no matter the temp.

 

[boominXplorer]

ohv or sohc?

 

[explr1]

I have the OHV engine.

 

[Opera House]

It hums because it doesn't know the words. Actually what is happening is that there is a bad ground and the speakers are being used as a ground path. Have you noticed anything odd with the voltmeter? Can't tell you exactly where the ground screw would be under the dash might be. Could also be a problem with the engine block to body ground straps. The easiest approach would be to run a new wire from the engine block to the body and to attach a wire from the radio case to the body. The radio thing is crude, but that might keep you from stalling. This isn't the time of year to do a lot of wire tracing outside.