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Rough cold start

2K views 2 replies 2 participants last post by  powerstrokecrazy 
#1 ·
I have a 2003 Ford 6.0 with 67,000 miles. In tempuratures below about 30 degrees, it sounds like it's not running on all cylinders when it starts. It only does this for a few seconds before it smoothes out. The truck is stock except for a programmer and exhaust. Any ideas? Thanks
 
#2 ·
does it have a updated calibration from ford for cold start?
 
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