I have a 99 grand cheroke laredo i think i have an electrical problem, at first i though it was the fuel pump but now that i saw the behaivior it looks like electrical, first the car just dies from time to time and it desn't want to start but i notice that the gauges on the dashboard corresponding to battery and fuel don't respond the battery only comes up to 9v and the fuel does not move,all the lights and indicatos work even the chime does the noice, after a wile (about 15 to 20 minutes) i turn the key to on position and everything works great batery to 12-14v and gas indicator works then the car starts again. what could be the problem ? thanks