TRNW-2: 10R80 water flow to cooler

[tucker tuckertrans.com]

Group

I have a 10R80 that has no water getting to the trans cooler with the TFT AT 220.  Attached is a photo of the 2 valves.  Can someone enlighten me on how this setup flows.  The Snapon scan tool has a cutoff Valve A and an engine valve.  A feels to be the top on in the photo and we can feel it activating but a thermal camera  show no flow through it.  The other valve must be in the 4 hose valve.  So which one is the transmission cutoff?

Dan Tucker

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