The most likely cause of the various conditions may be chips or debris: All years--Pressure Reg. Valve (Bore 1) or Torque Signal Valve (Bore 4) stuck. On 2001 - 2002 vehicles, a plugged orifice on the case side of the spacer plate.
briefly explain amplitude shift keying
No it will shift slow.
Drivers Side, transmission below shift linkage
My car will shift when i first go but wont shift after that help
* modulator valve
A bad transmission gear can cause your 1999 Nissan frontier to shift hard. Low transmission fluid can also cause the transmission to shift hard.
my 2001 ford windstar wont shift out of first gear.
Check transmission fluid level Change transmission fluid and filter
There are several things that can cause your manual transmission not to shift out of first gear or reverse. The most common cause is a broken shifting fork.
One of the reasons a Honda Accord with an automatic transmission may not shift out of first is there is not enough transmission fluid. The more likely reason is that the transmission has something broken in it and needs to be serviced or replaced.
If the transmission won't shift out of first gear on a 1992 Buick Roadmaster, it could indicate the transmission gears are seized. It can also indicate a low fluid level.
Check your transmission shift solenoids