New answers tagged pontiac
The fuel system and throttle body were dirty. I flushed Seafoam through via the oil, gas tank, and vacuum line. I also cleaned the throttle body, and the engine runs/idles perfectly clean.
I believe there are two circuits which can run the vehicle: one when starting; one when running. IIRC, the starting circuit provides full voltage to the coil which gives a bit more juice for extra power when starting. As soon as you allow the key to go back from start to run, this circuit is disconnected. This leaves the run circuit. If you don't have power ...
You can verify that by looking at the tread and the sidewall. If there is imminent separation, there will be undulation in one or the other. If they're round and straight/linear/curved/however you want to phrase it... no dips or bumps, you're looking at something else. Tire/wheel balance, ball joints, tie rods, etc.
My best guess would be that the surge blew the inline fuse in the wiring on the back of the stereo itself. You will need to remove the stereo and the fuse should be on the positive wire (usually a red wire). Its probably spring loaded push the ends together to turn the case and open it.
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