I installed the 5 Star Tune on our 2013 Bounder 35K. The automatic shifting was greatly improved. However, I lost the ability to manually upshift or downshift the trans using the shift lever (1,2,3).
I contacted Mike he said they don't do anything in the tune that would affect that. I did a side by side comparison on the hilly road to my house and on a flat road from a dead stop.
With the Ford tune I had total manual shift capability, upshifted and downshifted uphill and downhill with the shifter. From a dead stop, with the shifter in 3, the trans would start off in 1, shift to 2 and shift to 3, where it would stay, until I stopped again where the process would start over. The same happened with the shifter in 2.
With the 5 Star tune the trans would not upshift or downshift using the shift lever on uphills or downhills. From a dead stop with the shifter in 3 the trans started off in 3, not 1. Same with the shifter in 2.
So, to me that conclusively proves that the 5 Star tune is at fault.
With the area I live in, I need the ability to manually shift the trans up or down depending on whether I'm going uphill or downhill.
I've removed the 5 Star tune and put Ford's back in. Looks like I have a $400+ paper weight from 5 Star.
I'm really disappointed, since the product and product support got rave reviews here. That hasn't been my experience.
Back to the screaming downshifts.
Has anyone else had these issues besides me? If so, has Mike resolved it?
Anyone interested in a 5 Star tune? I have one for sale, cheaper than KMart.