"Peter Arnold"  wrote:                        1995 Ford F-250 W/PSD

40 degrees, truck fires right off after sitting 3 days.  White smoke.
Wait a minute for it to get some heat in the heads, White Smoke.
Seems a little noisier than normal, white smoke.
Drive around the block, temp starts to come up.  Truck has no power,
belches white smoke.
Feels electrical, truck seems to "catch and go" than slows down.
No mosquitoes left on the whole block!
Truck had been running 100% up to this point.
White Smoke = un burnt fuel.
Any help out there, please
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If the white smoke smells like normal exhaust and slowly
vanishes, it could be water vapor from a cracked head.

If the white smoke smells like burning oil and stays visible,
it could be from a cracked piston or broken piston rings.

No pleasant options here.

Good luck.

Rodan.
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If I may offer my half-assed solution, if it is coolant from a cracked head
causing the smoke you might be able to narrow it down by adding stop-leak
that says it will fix cracked heads and leaking head gaskets (such as
Justice Brothers).  It it's your pistons or rings then I expect the
stop-leak would do nothing.

White smoke is water vapor. You likely have a bad head gasket.

if the vacumn line to the transmission has ruptured the diagfram, it will
suck tranny fluid into the intake.
then you get a LOT of white smoke.
if your car?? has a vavumn modulator, it is easy to change .,it is on the
rea or side of tranny.
old john

Ever replace the cam position sensor?  It should be on the upper left
as you're looking at the pulley on the front of the engine.  I'd at
least try disconnecting and reconnecting it before I did
anythingserious like take it in somewhere to have the codes checked.