2005 Series III 3800 intake gasket

[mrbreezeet1]

Yes....They accumulate faster thus shortening the time it takes to complete a shift.

Great! Thanks for sharing your knowledge.

 

[clinebarger]

Does that help the 3 to 4 shift? Because that one is a long shift every time the car reaches 45 mph.

It does not....The 4th Accumulator is buried behind the Valve Body in the Channel Plate. But before you condemn something based solely on feel assuming you have no DTC's specifically P0730 &/or P1811.....

Using a suitable scan tool, View the parameters for shift error, shift time and transmission adaptive pressure (TAP) cell, you can get clues as to where the problem may be. The parameters for 1-2, 2-3 and 3-4 shift error will display the difference between the desired and actual shifts in seconds. A negative number equals a longer shift time, and a positive number equals a shorter shift time. The 1-2, 2-3 and 3-4 shift-time parameters display the previous shift time in seconds. The 1-2, 2-3 and 3-4 TAP cells display adaptive pressure needed to make a shift in the proper time. A large number indicates that an increase in pressure was required to correct a long shift. The steady-state TAPs display in kilopascals (kPa) the pressures it took to keep the unit in that gear. A large number indicates that the PCM had to increase pressure to correct slippage in that gear.