TCC locking up in all gears

[bobs84ttype]

my TCC seems to be locking up in all gears and only disengages at almost a complete stop and reengages as soon as i begin to accelerate. this happens after reaching operating temp.
any ideas as to where to look for the problem????

 

[GNTIM]

Sounds like a sticking/ bad solenoid. Pretty easy repair. Pull the pan and unbolt it.

 

[mikestertwo]

As GNTIM said. Sticking TCC solenoid in trans. Replace it.

 

[copo]

Also replace the 2 pressure switches while you change the filter and tranny fluid.

 

[bobs84ttype]

what 2 switches can you be more specific???
i have seen mention of a 4th gear pressure switch.
thanks for the additional info bob