2nd Gen Non-Engine/Transmission trans check valve

[RCrosby]

Iwas told about a check valve in trans. auto, 2001 47re . by a friend . that needs to be taking out , because of a problem with it. what problem is there if any,and were is it. also those it needs to be replace. thanks

 

[rweis]

Go to the DTT web site and search on removing the transmission in line check valve.



Short story. The T/C will drain back into the pan fairly rapidly. You MUST wait about 30 seconds from engine start BEFORE you chose a gear so the T/C is full of fluid and ready.



The check valve restricts fluid flow by about 30% - 50% in the transmission cooler line. Depending on who's transmission 1995 hot line to water heat exchanger short connecting line you get it may or may not have a duplicate check valve.



You DO NOT want 2 check valves. 1 will do, and 0 will do provided you give the T/C time to fill.



Bob Weis