luckys ... 9/4/2013
2004 Pontiac Grand Prix GTP 6 Cyl 3.8L
Lose all electrical while driving.
I have a 2004 Pontiac Grand prix gtp, and twice recently I have lost all power(electric) while driving. After the first time, I was able to throw it in park, remove the key, and start it up immediately. With help from a friend, we figured out I needed a new fuel pump, but didn't think this could cause a total loss of electrical. We checked the fuses and relays, and the fuel pump relay wasn't seated correctly, so we took it out and inspected it. It was burning to the touch, so we decided to switch it out with an identical unused one(high beam). Worked for about a week. Today when it happened for a second time, putting it in park and removing the key didn't work, so I hopped out into traffic, switched the two relays again, and had power back. After pulling into a parking lot I inspected the fuse/relay box again and this time ALL of the relays were burning to the touch. Anyone have any suggestions?
I think you have a bad ignition switch and I believe the relay temperatures are unrelated to your cause. You might also want to check the pos and neg battery connections for looseness and / or corrosion.