problems AGAIN!!

[pete33]

OK here it goes. I have an 05 6.0. A month ago the ford stealer put new liberator heads, ARP headstuds, turbo actuator, new gaskets, EGR delete, misc parts(as always) anyway total bill was over 7K (ouch). Now the past 2 days Ive had hard cold starts, misses until warm, blows smoke until it warms up. WTH!! any suggestions?? I dont want to go back to the stealer for any more service so I'm turning you guys for some input. BTW.. truck has 128,000

[NYC F-350]

Get your batteries load tested first.
Second, put the batteries on a charger individually.
Third, go to the following link to check your FICM.

The reason to load test and fully charge the batteries first is so that you obtain the best possible results from your FICM test. Should you skip a step, and get a bad reading, you may replace a good FICM, only to discover that the actual problem was battery related. Low voltage from bad batteries can fry FICMs. If you have a bad battery, and get a new FICM, your bad battery can damage your new FICM.
It also forces you to check all the battery connections and clean them.

[NYC F-350]

A question back to you. What oil are you running?

[pete33]

Rotella 5w40 with ford filters. Thanks for the input btw. I'll get the batteries checked tonight when i get home.

[pete33]

Another side note....when the stealer first diagnosed my truck they cam back with 2 bad injectors and a bad FICM. When the thing was finished they said it ended up being the turbo actuator causing the trouble and that the FICM was ok. Sounded fishy to me but i had been without my truck for 6 weeks so i took it as truth. I'll be checking the FICM as well as the batteries!

[wesx]

pete33 My truck does the same thing about once a month with the slow warmup and white smoke that almost feels like and sounds like the turbo is not working. The truck also has a rearend shutter like the poslock or rear brakes are sticking when turning at slow speed .

[PowerstrokeTech82787]

Originally Posted by wesx

pete33 The truck also has a rearend shutter like the poslock or rear brakes are sticking when turning at slow speed .

lol thats not good. hope youve got a warranty...

[NYC F-350]

Originally Posted by wesx

The truck also has a rearend shutter like the poslock or rear brakes are sticking when turning at slow speed .

Change your rear diff fluid and use Mobil1 or Lucas. Do not add the modifier. Drive truck for a few hundred miles. If the shutter remains, add 4 ounces of the friction modifier.