I have a 2006 F150 FX4 with a 5.4 with only 91k miles on it. The issue I am having is my truck starts just fine but when I drive the truck park it and try to immediately start it again it won’t start. The aux comes on the radio comes on the truck just won’t crank. The starter does not make noise or anything. If I wait 5 min or so and try again it will crank over no problem.
But if the truck is siting without driving it I can turn the truck off and on no problem as many times as I want. The issue is only after the truck has been driven.
Most recent work it had spark plugs and coil packs replaced at 85k miles. And it has a brand new battery and I had the keys reprogrammed to the truck in case that was the issue but that didn’t do anything.
Any suggestions I am stuck and not sure what I should check next.

Welcome to the site..

During a no crank event, is there a drop out in voltage? The Aux on the radio is odd..

Thank you Hayapower. No I have not noticed a drop in power during a no start event. I even went and disconnected my negative terminal on my battery for about 30 min to reset the computer and that still did not help. I just had the ground cable replaced the mechanic said it was in bad shape but still the issue still occurrs.