Swapped 3.4 is flooding?

[caz]

All,

I developed a strange problem with my swapped 3.4 yesterday. It has been running like a top for 15k miles since I did the swap.

Yesterday I went out to start it, and it would not start. It turned over fine, and it sounded a few times like it may want to start, but did not.

It smelled like it was flooding!

After double checking a few things, I decided to unplug the fuel pump. I did this, and after a few seconds of cranking the truck started!

I plugged the fuel pump in again and the same thing happened. I had to unplug it again to get it to start.

Once I got it running with the fuel pump plugged in, I took it for a drive and it was fine.

I am at a loss on this one! Anyone have any ideas? Could it be a leaky injector or something?

Thanks,
CAZ

 

[KLF]

Hey Andy!

Sounds to me like either a leaky injector, or a bad fuel pressure regulator.

 

[caz]

Hey Ken!

Long time no see!

I think I am gonna check the fuel pressure - while running and after sitting for a while, and then if it happens again I will check to see if all of the plugs are wet or just one.

I can't imagine that it is only one leaking injector - I would think that it would still start of this were the case.

Thanks!
CAZ