2004 pontiac grand am se. It seems like i drive long distances and turn off the car it refuses to start back up immediately.If I wait 90 minutes and the engine cools completely then it restarts pronto. Yesterday the car died in motion but restarted after i hour had passed, so i had to dismiss the tow truck.this morning the car would not start at all. but by the time i had it towed to the mechanic it was working.

reprogram the key by putting it in the ignition and turning it to the run position. let it set for exactly 10 mins turn off and immediately return to the run position for 10 more minutes exactly. after the second 10 minutes turn off and immediately try to start the car.

If your security light is blinking.Turn key to on position(2 clicks) wait for 10 minutes security light should stop blinking.Turn key to off position. Turn key forward 2 clicks wait for 5 seconds and try to restart the car.

its hard job if first time doing mechanic work.problem could be the temperature control switch also.to get to the air door actutor you have to remove instrument panel cluster and remove lower right sound insulator and lower left sound insulator panel and knee bolster from below the steering column.first you need to disable airbag in the steering wheel and passenger side dash before working around the dash area.to disable airbags turn off radio disconnect negative battery cable wait 20 minutes let airbag discharge first before attempting to work around the dash or instrument cluster. like i said hard job if first time you have remove a lot of things to get to the heater core housing where air door actutor and defrost actutator locations.

Turn the key to on position. (Do Not Start) Leave the key in the on postion for EXACTLY 10 minutes. As SOON as the 10 minutes is up and the light turns off, then IMMEDIATELY starte the car.

lol..buy a new car! are you dting someone?

crank sensor, located under intake just above oil pan surface.

It sounds like your fuel filter is getting clogged. There is enough flow to allow the engine to run at low load, but as soon as you try to dump lots of fuel into the engine, there is not enough flow, and the engine dies. Replace the fuel filter.

the security light will flash and disable the fuel injectors preventing the car from starting, if it thinks that it is being stolen. its easy to fix. set the parking brake to turn off the automatic headlights. next turn the key to the on position and wait ten minutes. the security light should stop flashing. then turn the key off and this will reset the security system. it should start immediatly afterwards.

i think it sounds like a MAP sensor... try it if u havent figured it out already yet...

http://www.autozone.com/R,868181/vehicleId,2915702/initialAction,partProductDetail/store,713/partType,00127/shopping/partProductDetail.htm

I would start by checking the throttle position sensor. It can be ohmed out with an analog multimeter to see if there are any dead spots in it. You might also check the fuel system pressure to see if the pump is intermittent.

Hope this helps.