The 4.4 with the "start help" doesn't prime the pump until you turn the key. At that point it acts like a push to start and will crank xx seconds.

A hard start usually means the check valve is not holding pressure at the FPR.

Have you tested rail pressure after the car sits a while?

If it will reliablely start on the 2nd or 3rd attempt it's almost certainly FPR/fuel pump (check valve).


–awr–

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)