I guess I should update my findings also. I did some research and came across the Sonnax website, which was very informative. To make a long story short I installed the PWM TCC regulator & isolator valve kit and TCC apply valve kit. Works great no more problems!!! Both kits, gaskets, fluid...
Smith321, I have a problem that seems similar to the one you are experiencing. On my wifes 1997 Pontiac Bonneville at torque converter lock-up it shudders under a slight load. This will happen when in lock-up and a slight load is applied, such as going up a small grade. This also only seems...
