Do you know if the tech flush the cooler, not with compress air. A plugged cooler with fry the trans in no time.

 

yes the system has been flush the drain back valve has been removed.the durango was tested yesterday with scanner and presure gauges, today changing the transmission shifter switch that opens and close the control valves. by the time we find the trouble i will have every thing change on the suv that controls the transmission the only thing left is the computer and thats next.