2003 H2 Hard start when warm ??????

[Ulrich1]

Anyone,

My 2003 H2 is hard starting when warm, and only when warm. It usually has to sit 10 minutes after driving to hard start. If you turn it off and restart right away it will start normal. Dealer scanned computer. Code listed pluged converter, and low battery voltage. Fixed converters and replaced battery yesterday. No change. I was thinking fuel pump, so I changed pump assembly and filter. Still no change.

I do hear a little air hiss, which started right before the hard start issue. That's what made me think that it possibly was the converter. "Sounds like the air cleaner is off when I hit the throttle". Does a leaky intake gasket cause hard start warm but not cold?

Took it back to the dealer today. They are still working on it or pushed it out back not sure.

Any suggestions?

[kchummer]

sounds like a fuel pump issue

[madmike]

Same here. Seems I am losing pressure in my fuel rails. Maybe the pressure regulator. It is more fuel starved than flooded. So I am leaning to ward the pressure regulator as my fuel pump seems to give ample power at all tempuratures.