Idle is a little rough some times....

[goodguys75]

I have noticed, for the last couple of weeks that when i first start my truck the idle is a bit rough... not too bad but noticable..... after a few min it is normal, and never have any problems when driving or any other time... . any ideas what it may be, or is it normal... ... ... everything is stock... thanks

 

[p-Bar]

FCA possibly try some 2 stroke oil in the fuel as it lubricates the FCA

 

[goodguys75]

what is the fca???and i have used standyne several times already... it didnt do it today when it started, just once in a while

 

[p-Bar]

It's the fuel control acuator your symptoms are a sign of the FCA going bad

 

[cerberusiam]

It could be the FCA, it could be the injectors, it could be crossover tubes and\or valves. Its hard to tell with minimal intermittent conditions.



You cannot run an additive once in a while, it has to be constant for it to do any good. Same with the extra lube. Since this ULSD is know for issues and is relatively dry consider a regimen of additives in every tank to rule out the effects.



I run a mixture of Power Service (96 oz) and 1 quart either 2 -stroke or 10 WT non-detergent oil in every tank, about 10 ozs per 1/2 to 2/3 tank fillup. The next best thing to do is hook a trailer on it and drive the snot out of it for 2 days.