Rum, rum, rum@ 3,500 RPM
My E450 with V10 has a slight surging of RPMs at 3,500 and climbiing hills. Normal or something out of balance? New 8 months old 2015 chassis.
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Heading home from Yosemite this morning and will certainly encounter it many times. Will take note and call the local Ford fleet dealer that handled my Winnebago later this afternoon.
