Starting problem....... mine is doing the same thing it is a 98 chevy malibu and i can drive it and right when i turn it off it will not start it will turn over and then it dies i have to wait about a 1/2 to a hour before it will let me again........

Could be any number of thing's . Does it start back up right away ? When does it do it ,after driving awhile when the vehicle is warmed up . Or cold ? Checking engine light lit , any DTC'S - diagnostic trouble codes stored ?

interlock switch is bad replace immediatly for safety sake.

replace thermostat did bleed coolant system check coolant level.because if not engine could have overheated and blowed headgaskets warp or cracked the heads check engine compression.sound like engine got too hot.

Sounds like a fuel pump.

You need to reset the theft system. To do this, try to start it. It should start and die. Then after it dies and the theft light is flashing, leave the key on for 10 minutes. After 10 min, the theft light should go out. After the theft light goes out, turn off the key. Count to 5, then restart it. Then it should work.

This is the anti-theft PASSLOCK system. You can purchase a paslock 2 bypass system that will bypass the anti-theft othewise you will have to wait the 10 minutes with the key on the ON position and turn over immediately when anti-theft light turns off

It should take about 8minutes to reset the ignition system but if it is doing it all the time ,the pass lock in the ignition switch is toast! You have no choice but to replace the ignitin switch!

sounds like the switch needs replaced!!

that would probalbly fuel filter or a blockage in the tank

Hello, It sounds as if the theft deterrent system is tripped. Look at the key is it worn bad? If so get a new one made at the dealer. To do a key test isert the key, turn to start and release if theft light comes on leave key alone in the on position ten minutes after you try to start never turn off after you yurn to start it puts it in a certain mode, and do not bother it for about 12 minutes. When you come back to car turn switch off then turn to start and it should start thank you.Please rate this answer, thank you.