lock up torque converter issues

[winksr]

I have a 2002 Z71 Tahoe 5.3, My converter kicks in and out when i begin to accelerate running between 45 and 50 mph. its been doing this for a while. Seems to do it more often when its hot temp. outside than when its cold. when its below 45 degrees it doesn't do it all. Was wondering if there is a solenoid that controls the lockup and if that could be my problem? Any help would be greatly appreciated

 

[winksr]

I have a 2002 Z71 Tahoe 5.3, My converter kicks in and out when i begin to accelerate running between 45 and 50 mph. its been doing this for a while. Seems to do it more often when its hot temp. outside than when its cold. when its below 45 degrees it doesn't do it all. Was wondering if there is a solenoid that controls the lockup and if that could be my problem? Any help would be greatly appreciated

just realized I posted in the wrong year forum