Hmmm.. My 92 Yukon (TH400 I believe) has developed a condition in
which the transmission seems to run normally in all forward and
reverse gears, with normal torque converter slip, EXCEPT there is no
'grab' or engine braking when getting off the throttle in
forward.. It just 'coasts' as if it was in neutral.. no engine
braking in any gear. The engine will idle down, and then when you get
back on the gas, it grabs normally..
Anyone seen this one?? What could be happening here???