hard cold start/white blue smoke

[JP2003]

Just started truck after sitting for a week 1/4 tank of fuel and it cranked for awhile before it started with a puff of white/blue smoke? Drove to gas station put in fuel and a fast hot start, running great. Is this anything to worry about? Thanks Fellas

[HAM_RADIO_MAN]

With only a ¼ tank of fuel that leaves a lot of air space in the tank to form condensation. I am guessing water in the fuel. I guess some oil could have found it's way past the valve guides into the cylinder too. If the truck is running good and it’s full of fuel now , I would say your fine. You could check the FICM voltage, fuel filters and double dose it with some fuel conditioner if your supper worried about it. This is also a good time to drain the FICM and get any water out of there before it’s a problem.

[JP2003]

Thanks!!