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Power Strokes
6.7 Tech
2011 F-550 Transmission Issue
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[QUOTE="griz700rocket, post: 1473364, member: 11031"] 2011 F-550 welding truck. 50k miles with average use for a 550. Trans has been acting funny for a while now. Other issues convinced me to d-lete a couple thousand miles ago. Ran the preloaded minimaxx tunes for a while and trans seemed better. Started acting up again so I had local diesel shop put in new solenoids. Not sure which ones they replaced but seemed better for a while. Recently tried tunes from no-limit and they are doing basically the same thing. Randomly when it shifts from 3-4 it misses the shift and you have to let off to get it to shift. Once it's in 4th it holds fine and it downshifts from 5-4 fine. Called midwest and they suggested buying one of their built trans or if I wanted to go the cheap route trying a new valve body. I can't see any reason why a 50k mile trans would need to be replaced already. Any insight or suggestions? Plan on giving no-limit a call after they open today and see what they say. [/QUOTE]
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