6th gear vibration - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 07-08-2014, 06:22 PM Thread Starter
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6th gear vibration

2015 with less than 1000 miles. Has a bad vibration in 6th gear. Anyone else seen this issue?

Going into the dealer in two days. I hope its not serious. I have a lot of camping trips planned over the next two months.
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post #2 of 7 Old 07-09-2014, 06:41 PM Thread Starter
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Now it gets even more strange... I put my factory wheels and tires back on and the vibration seems to have gone away.

How is it possible that my new wheels and tires only have a vibration in 6th gear and not 5th gear at the same speed?
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post #3 of 7 Old 07-10-2014, 06:16 PM
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Yes I have the same issue with my 2015... Stock wheels and tires. Seems to me it vibrates when it's in 6th gear and the RPM's are really low

Last edited by MaxMuscle; 07-10-2014 at 06:22 PM.
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post #4 of 7 Old 09-06-2014, 11:18 AM
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I had the same thing happen to mine, its like a real light shudder, noticed early on around 1500 miles. 6th gear, 1000-1500 rpm lightly on the throttle. It did it a time here and there nothing bad. Fast forward to 6k miles and its getting worse, same gear, same rpm and it shudders so bad it will almost shake a water bottle out of the lower cup holders. Mine goes in this Thursday to see what they can find. If I let out of it, it will go away. If I stay in it, it continues to shudder and shake the truck then its almost like the torque conveter kicks in/out but it continues to do it. I had a 2011 and took the seal out for 4,5,6 gear, it feels like that did except its only in 6th. It feels to me like 6th gear is slipping and catching, but it also almost acts like the torque convorter. my guess is maybe the shift solenoids
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post #5 of 7 Old 09-06-2014, 11:20 AM
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Let me know what they tell you, I have 35" tires and a leveling kit, I'm hopeful they aint going to try to give me the run around that its my tires doing it
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post #6 of 7 Old 09-06-2014, 04:13 PM Thread Starter
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Mine was wheels/tires related. I put my stockers back on and the issue went away. I am awaiting a new set of wheels tires now. If it comes back with different wheels/tires I will be floored.

-------------------------------------------
2015 SuperCrew Lariat 6.7 Lots of Options
Pretty Stock for now
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post #7 of 7 Old 09-14-2014, 06:43 AM
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As soon as I put my 35" mud tires on this also started. When I had my stockers on I never had an issue. Might be tire related too.

2014 F-350 Platinum 4x4
Ready Lift 3.5" on 36" Tires/H&S Midwest Tuned/OUO/No Limit Fabrication/Fox/Flo Pro/Full Midwest 65.5 Streetmax Kit
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