After turning it on it will trun off with in 3-10 min. and the

3,10, 17, 24, etc.

do you mean wont turn over or wont start. I need to know that in order to explain the process of elimination

How old is the fuel pump?

Have you driven with a pressure gauge
tied to a wiper or taped to the windshield,
to watch fuel pressure when it quites

try this trun key on for 10 to 20 min.s do not try and start it just trun it on. after waiting then trun key off and try to start. this should reset your system.

try this trun key on do not start just to on. leave on for 10 to 20 min.s then trun key off and try to start this should reboot the computor.

if your car will not start. then try trun the key on do not try and start it just trun it on let it set for about 10 to 20 min.s then trun it off and try to start it. should reset the computor.

put key in trun to on do not start or try to start just trun on. wait 10 to 20 min.s with key on this should reset the theft system.after you wait turn key off then try to start.

??? please explain!!

the relay is maybe sticking.
or there is a call for cooling when the engine is off.

if the fan turns off after a min or two then its ok.

if the fan stays on and will not trun off ever even after 30 mins then the relay is staying on and needs to be taken out and replaced.

Yes! After installed, trun key on (engine not running) for 30 mins.,trun off and back on for 10mins., turn off and back on for 10 mins. more; flashing light will go off turn off and try starting engine. Good luck! it's GM's reset for that.