My 7.3L Running bad
 

Hey Everyone
Looking for help, my 2003 7.3L runs like crap when i first start it EVERYDAY! It lasts about 10-15mins then clears up every time????? Does anyone have any ideas for me? Maybe something i can try?
Thanks!! :c:

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Some more info might help us help you...

How many miles on the truck? Did it just start out of nowhere? Any smoke when it happens? These are some questions that will help us diagnose the best of our ability.

excursion 7.3 running bad
 

Hey thanks for getting back, The truck has alot of miles 255,000 on it. I have owned it now for about a year it was doing this when i got it but only a couple times here and there. Winter came around then it was really bad so i pluged it in every night. It always strarts in the morning everytime but now summers here it still running rough for the first 10-15 mins then clears up and all is good. While im driving it i dont notice any smoke maybe the odd time a bit of black but thats about it. Its driving me crazy any help would be great!!!
Thankyou!!