I was reading on this chat about a 1999 Pontiac bonneville with intermittent dying problem no one could figure out, my bonne has the same problem did you find out what the problem was????

About that 1999 Pontiac Bonneville, I have replace fuel filter, plugs, wires, thermostat, fuel pump seems to be fine, runs great other than dying, does so more in warm weather does not do it much in the winter, someone help me please!!!!!!

Be patient... its a holiday weekend. SOme very smart people will likely be provided expert guidance in the next few days.

Start by checking the battery cables, both ends of both cables. Clean them up real good. They tend to get corroded and can cause problems.

did that, have a new battery and cables are clean..Thanks

How about your power windows/door locks? Do they work ok when the engine dies?

no, not until I turn the key on

Did u clean up the other ends of the cables? not just where they attach to the battery.

yep sure did

Check Engine Light??? Any Stored Codes??? (O2 Sensor, Vaccum Leak??)