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Q: Issues starting

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My car battery died a few weeks ago and I replaced it. However, three times this week the car has difficulty starting. It will even start, then immediately die. I have to turn and hold the key for a moment while giving it some gas to get it going. I know it is not the battery, as I just replaced my old one. How would I know if it is the spark plugs, or the spark plug wiring? Short of those two issues, I am not sure what else it could be. Thanks!

My car has 103000 miles.
My car has an automatic transmission.

Hi There, This may be a sign of a faulty fuel pump or fuel pressure regulator. As you know, when you turn the key to on, the fuel pump is activated and the fuel system is primed with fuel at a specific pressure in order to supply the fuel injectors with enough fuel to start the motor. When this is less than what is needed in order for the motor to fire or in some cases higher than normal, you may notice an erratic fluctuation in engine RPMs or hard starting. I would recommend having an expert from YourMechanic come to your location to diagnose your fuel system.

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