2012 FX4 SHAKE & SHUDDER!
#1
2012 FX4 SHAKE & SHUDDER!
I've got a 12 FX4 SC 6.5' w/Ecoboost. After 1K miles I began to develop a shudder/shake in the tranny-driveshaft passing through 1500 rpm. 4 dealers, 6 overnights and 2 escalations, I finally am told there is a design problem in the pre Jan 12 trucks. Fixed with frame mod to manufacturing process after Jan, but no solution for current owners with the probelm.
Anyone else experience the shudder? I replaced my 07 FX4 SC with this truck and LOVED it for the first 1K miles. Now I HATE driving it, especially in traffic (lots of cycles through 1500 rpm.
Anyone else experience the shudder? I replaced my 07 FX4 SC with this truck and LOVED it for the first 1K miles. Now I HATE driving it, especially in traffic (lots of cycles through 1500 rpm.
#2
I've got a 12 FX4 SC 6.5' w/Ecoboost. After 1K miles I began to develop a shudder/shake in the tranny-driveshaft passing through 1500 rpm. 4 dealers, 6 overnights and 2 escalations, I finally am told there is a design problem in the pre Jan 12 trucks. Fixed with frame mod to manufacturing process after Jan, but no solution for current owners with the probelm.
Anyone else experience the shudder? I replaced my 07 FX4 SC with this truck and LOVED it for the first 1K miles. Now I HATE driving it, especially in traffic (lots of cycles through 1500 rpm.
Anyone else experience the shudder? I replaced my 07 FX4 SC with this truck and LOVED it for the first 1K miles. Now I HATE driving it, especially in traffic (lots of cycles through 1500 rpm.
#6
Is this the same shudder that you get from the 1-2 upshift 20-30 mph? Yeah there is countless info on this. My 2011 5.0L does this and it is greatly annoying but to tell the truth, after 11,XXX miles I am used to it and it doesn't bother me anymore.
My dealer told me they can shim the pinion angle and this would make it go away when empty but it would come back when a load is on the truck and the suspension is compressed a few inches. No thanks, I will just live with it.
My dealer told me they can shim the pinion angle and this would make it go away when empty but it would come back when a load is on the truck and the suspension is compressed a few inches. No thanks, I will just live with it.
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HMFIC
Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150
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04-13-2004 12:25 PM