Issue with Start Up

[Thisstephen]

I've owned my 2016 Mustang GT (Standard Transmission) for almost a year now. For about 5 months or so I've had an issue with the car taking longer than usual to start up. It can take up to 5 seconds or so. It only does it maybe 3 out of 5 start ups and the car has to be sitting for at least 30 mins for the issue to occur.

I've taken this car in 3 times and i'll be taking it in for the 4th time today. The issue has never been fixed or resolved. The first time i took it in the technician replaced the fuel pump. Second time i took it in they had my car for a week. They did nothing to it and told me to try using regular gas instead of premium. The third time they replaced the fuel pump again.

Does anyone have any suggestions on what i should do?

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[glossygt]

I'm taking my car in for this reason (and others). Another member here had the issue and had is #11 phaser and solenoid replaced. I will let you know what happens.

My car acts like it can't start after reaching normal operating temp and shutting it off. Sometimes, I will even get a message that says to check charging system.