When i start it in the mornings it will run for about ten mins. and then just turn itself off.As i try to start it back it wont crank until i turn it over a few times.It also does it sometimes when i first crank it up and it also stalls out while driving.It does not do it everyday only when it wants to.
I would look to make sure the distributor cap is on tight or maybe the rotor inside the cap is no longer good if all is ok then you may nothavegood spark plugs i would recomend talking to your local chevy mechanic though
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Start with the fuel pump.When you get into your car turn the ignition key to the on position but do not start your car.Listen for the fuel Pump to engage,you will hear a low whine.If you hear the pump engage,that doesn't rule that the fuel pump is fine.It sounds like the pump though.
sounds like a bad cam sensor. have scanned if light on dash is on. if no scanner any auto parts store will scan for free. a bad or failing crank sensor will make vehicle stall out after a few seconds or minutes. if it is bad enough it will not start. because it controls timing.
your ignition coil are going bad, they need to be replaced. once the car gets hot the circuit shut down the car when hot. once they cool your riding again until they get hot. thats your problem. Good Luck
Here is what you do. make sure the battery is fully charged cause you dont want it to go dead during this process or it wont work. step down on your parking brake pedal and leave it down. this will keep the headlights off during the process so the battery wont go dead. turn the ignition key like you were going to start the car then leave the key in the on position. you have to leave the key in the on position for ten minutes. during the ten minutes you will see the anti theft or security light flashing or the display in the instrument cluster. when the ten minutes are up the security light will go out. once the light goes out attempt to start the car. if it doesnt start turn the key all the way back to the off position count to three then attempt to start the car then leave the key in the on position another ten minutes till the light stops flashing again. sometimes it takes up to three ten minute cycles to reset the antitheft system. so basically you do the same thing three times leaving the key in the on position for ten minutes each time so it will take approximately thirty minutes. sometimes it will work on the first try though.
try turning the ignition on try to start then without shutting key off wait 10 mins then shut key off then back on but do not try starting leave on for ten mins then back off turn key back on to run but do not try starting it wait ten mins then if it reset it should crank over and start if not repeat all steps again
I had the same problem all of these models do, but GM wont recall them. Here is what you do if you have not yet, turn to key to on but don't start the engine all the lights in the dash will go on, when they turn back off see if your security light stays on or blinks. If it does its your Pass Lock security system. You can reprogram it using the key, take the key out then put it back in the ignition move it all the way to ON but don't turn on the engine when the lights in the dash go out turn the key back to the ACC position leave it there for ten minutes the light should turn off after about ten min. then turn the key to the OFF position pull it out about 1/4 of the way then push it in and start it up. If this is the problem you may have to do this any time it does not start up.