FP and white smoke ?s

[NLeach]

Stock truck. FP about a month ago ran 9. 5-10 psi at idle,pulled down to 8 psi(at the lowest) on hard acceleration. Now at idle its about 8 and goes down to about 7 and maybe a tad lower on hard acceleration. Fuel filter is a 5 micron baldwin,hasnt been changed recently,got like 2-3k on this filter 15k on truck. It has been colder here lately and my truck also sits for longer now than before(not my DD). What would cause this drop in FP?Filled up at same station as usual,truck runs fine,starts fine,not other issues besides a bit more white smoke on cold start,also another ? since the truck has never been in this cold of weather before. Avg. temp now is 30 with nighttime temps in the teens.

 

[RMalone]

My truck runs a little lower fuel pressure when it's cold outside, and I get a some white smoke at start up when cold, I doubt you have an issue. Anybody else??

 

[WKruger]

Don't know about fuel pressure, but I get a hint of white smoke.

 

[rbattelle]

I also observe lower fuel pressures during cold weather. I don't think you should push the panic button yet.

Cold start also may cause extra white smoke. Plugging in the block heater will probably reduce the smoke a little.

Ryan