Perhaps this deserves a new thread, but regarding the "bucking" in third, I've also noticed that when my foot is completely off the throttle, I get normal engine braking. When I just slightly touch the throttle - not enough to actually open the throttle valve - but just enough I'd imagine to juggle the TPS, the compression braking goes away completely as though the overrunning clutch was released. The RPMs actually drop when I touch the throttle pedal.
Driveability is excellent otherwise, but this quirk seems odd. It's far too sensitive to be a factory setting. In fact, it's so touchy that on rare occasions the road is so smooth that the gas pedal will not jiggle up enough to get the normal compression braking to operate. I'm going to have to experiment with this one. What an interesting gremlin.
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