I'll try to make this short and sweet. My car began to die a lot on random occasions about 2 weeks ago. I replaced the spark plug cables and spark plugs and checked my battery. It definitely has more power and idles a lot better, but the car dies still if I drive it to my location then start it up again. The weird part is that it runs great on the third try. But if I turn the car off then on again it will die shortly after. It's a pattern. I can't figure this out.

174,000 Miles. Just had a tune up. Oil is clean.

 

I could be the crank position sensor going bad. It would get worse pretty quick. So it's not likely. I'd check and make sure that the grounding wires on the intake manifold are making good contact. Then I'd look into your fuel injection relay. Sometimes they get finicky due to cold or cracking solder joints.

 

a 740GLE, is that regina or bosch LH 2.4 ?

 

It's Bosch. Not sure if this matters, but it's dual overhead cam. I'll check the wiring. I just bought a new coil pack to throw in. My current one looks very worn. Would that make any difference?

 

these cars dont have 'coil packs'. they have a plain coil, and a power module. Bosch coils almost never fail, but the power modules give up the ghost sometimes.... however, your symptoms seem more likely to be the fuel pump relay or the CPS, or something similar. note thats just 'more likely', diagnostics are needed here to determine whats wrong, rather than just throwing random parts at it.