any advice????????

[F-350MAN]

Hey guys!!when i sit at idle my truck pulsates a bit from 500rpm's to 300 only in park though in gear (automatic) it idles around 900 no mods yet exept for 10k any ideas of what it could be??????

[Rodslinger]

You need more mods Randy.
Just kidding man, I'm sure one of the techs will be along with an idea here shortly.

[mschn99]

any other info??.....and is this something new.....have you tried to pull codes.....and is there any chance it could be fuel pressure related (when was the last time your filter was replaced)???

[F-350MAN]

Hey marc, yes it's something new a few days and today I didn't notice it no I didn't check any codes but I'm getting ready for exhaust and some mods & guages and i'm about 9000+ on the filter do I need to go to the dealer for any code reading?thanks

[Brian]

most auto supply stores can read the code, and for free

[mschn99]

Originally Posted by F-350MAN

Hey marc, yes it's something new a few days and today I didn't notice it no I didn't check any codes but I'm getting ready for exhaust and some mods & guages and i'm about 9000+ on the filter do I need to go to the dealer for any code reading?thanks

i would change the fuel filter just to be safe for starters......and as far as codes, like 099 said, go down to autozone or kragens or some other parts house, most of them will pull the codes for you for free.....from there we can at least have a place to look............Marc