05 Rough cold start and idle

[Willy Mo]

well I have had my 05 for a couple months nowm and it has ran Great until this week. Lows in the 50's and highs in the 80's until last night it got down to the 30's. the past 2 days the truck had a rough cold start idle but after i took off and turned at teh first stop sign it would puff a little blue smoke then it seemed like it idled fine.

This morning however.. started, idled rough as it has 2 days prior, but it would barely move, and it died on me at the stop sign. took a couple tries to get it started and once i did and took off it smoked like a freight train for maybe 2 sec. (i was giving it just enough gas to get it moving). After driving it for 10min and letting it idle for another 10 it runs and drive great.. like it should. keep in mind it was 40* during all of this and still is. i checked teh ficm voltage and bat voltage on start up and batt v is 11v, and ficm is 48.5.

Truck has afe intake, exhaust, EGR delete, new oil cooler studs and gaskets before i got it. 5k miles ago. i since then installed the Blue spring, and PHP FICM tuner. Should i have it plugged in for lows of upper 30's?

[dannyboy950]

Some trucks are like people more cold natured than others. Yours you may need to use a lighter weight oil in winter, give it a little more warm up time. Maybe even go to a synthetic, it's not as susceptible to cold as conventional oil.

You can also try a fuel and oil treatment product as well this winter. This also is a good time to check your coolant for proper mix to see if it will handle your expected temps.

[P7M8]

First cool morning here in the south. Engine oil temp @ start up was 50*F according to the scan gauge. Is there an optimal oil temp I should warm up to in cold weather? The engine was a little rough at start up until the oil warmed up a bit then it was fine.

[Willy Mo]

i have been plugging the truck in at night and it has been starting and idleing fine. I plan on changing the oil to rotella T6 here in the next couple weeks. Could i have a glow plug issue as well? it has been getting around 30-35 lows lately.

[southend]

Originally Posted by Willy Mo

i have been plugging the truck in at night and it has been starting and idleing fine. I plan on changing the oil to rotella T6 here in the next couple weeks. Could i have a glow plug issue as well? it has been getting around 30-35 lows lately.

First of all, you need a monitor.......Write Up: Monitoring the 6.0L PSD.

Bad batteries kill ficms, you should not need to plug your truck up like that. The glow plugs last forever, usually the ficm is the first problem.

Sent from my phone that somebody didn't help me get.

[Willy Mo]

Originally Posted by southend

First of all, you need a monitor.......Write Up: Monitoring the 6.0L PSD. - Ford Powerstroke Diesel Forum

Bad batteries kill ficms, you should not need to plug your truck up like that. The glow plugs last forever, usually the ficm is the first problem.

Sent from my phone that somebody didn't help me get.

Im actually ordering a Livewire TS from innovate diesel Tuesday. I have an FICM programer and i checket the FICM volts on start up and idle. start up was 48v and idle was 48.5v. So i assumed the ficm was fine. It hasnt idled rough since ive been pluggin it in at night. Maybe the previous owner had some thick oil in it? ive only put 3000 miles on the truck since ive had it.

[southend]

You need to be able to see ficm, an while running, battery while starting, and you need to see if there are any stored codes.

Sent from my phone that somebody didn't help me get.

[bulldog55964]

have you tried some rev-x it kinda sounds like stiction if your ficm is indeed good