Hard To Down Shift or Up Shift Your Automatic? I Found Out Why
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2006 C55 AMG, 2.8L Quattro, Softail Nostalgia 1550 (Stage III), Sporster (slammed)
Hard To Down Shift or Up Shift Your Automatic? I Found Out Why
I love shifting my SpeedShift 5-speed (and my old 7G-Tronic 7-speed) manually and do it maybe 90% of the time. But on both my automatics I found that it was very easy to miss a shift. By that I mean a tap to the left would not cause it to down shift. This happened a lot. Sometimes I was finding it would miss the shift input 1 out of 3 or 4 times and it was really annoying! I put on a heavier after market shift knob and that helped a little but it didn't make that much difference. I always though that the shift boot leather was getting bunched up on either side and would impair the stick from traveling far enough to signal a shift. I found I was always pushing the leather aside once I was in drive to make sure it was not hitting the stick. I really hate it when you are relying on a speedy down shift to 2nd for engine braking before a hard corner and you get nothing in the slit second you needed it. So today I took the shift boot off in frustration and tried to figure out why. With the boot off the shifter works flawlessly; every time. I tried everything to keep the leather boot from wiggling down between the stick and the housing. But to my surprise that turned out NOT to be the problem. It turns out that the leather boot was getting "folded" at the very back and keeping the stick from going all the way back into drive. So bumping it left or right would not give it enough input to shift. If you look at the mechanism you'll see why it has to be all the way back to really work easily. So I attached some stiff plastic to the underside "hidden" part of the boot to keep it from folding and it works great now. Every time with just an easy tap. It's heaven now!
#3
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2006 C55 AMG, 2.8L Quattro, Softail Nostalgia 1550 (Stage III), Sporster (slammed)