i noticed this last week , and it is getting worse after i drive my car and it is warmed up
it idles up and down and also a rough idle and this also followed by a drop in my voltage guage wich happens first , when this happens it also tries to die when i hit the gas and backfires , anyone have any ideas what might be going wrong here , i was told a fuel pump is going out , it is getting loud even worse when i have a full tank !


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i would check,your alternator, plugs and wires first. fuel should not effect voltage

just replaced the alternator , plugs, wires , and coils , thanks for the input .
when the fuel pump makes a loud noise is when the voltage goes down ,
it's burnin me up cant figure it out and it is getting worse!

not positive but the car idling up and down and backfiring sounds like a vacuum leak. check it out real good and lemme know.