Hello- my wife's 95 Lumina Sedan with the 3.1 and 100,600 miles on it has developed a strange problem. The car loses all power after it heats up. After about 20 minutes of highway driving this morning it started to miss and kept trying to stall. Eventually it did die and when she went to restart there was NO power. It was like the battery was dead. You could hear the soloniod clicking but nothing turning over! I pulled the alternator and had it tested @ AZ and it was good. After I put the alternator back in and jumped it to get it going it ran fine all the way home (15 miles) and now it seems to be alright. When I pulled into the driveway and shut it down it started right back up!! BUT I know as soon as she runs it down the highway it's gonna happen again! I thought maybe the coil paks were bad and breaking down when they got hot but that doesn't explain the dead battery! (at least I don't think it does)
Any thoughts or suggestions would be GREATLY appreciated!