Discussion Starter · #1 ·
I have a 06 6.0 that runs flawless with the sct tuner, no problems what so ever. My buddy just got an 05 king ranch 6.0 so we decided to put my tuner on the truck. The truck loved it, at first, 10 minutes later after extreme driving it started idiling really loud, running real rough, and stubling at low rpms but fine once you got above 2,000 rpms. Any help would be great. Thanks.