Link to a great explanation of the hydraulic operation of a TH400 transmission

RF_Burns

Super Moderator
Staff member
Sep 7, 2008
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Ontario Canada
I was googling around last night searching for info on my random no auto shift from first to second gear.

I came across a great article explaining how the various valves work together to control the operation of the Turbo-hydramatic transmissions, so it
applies to the th425 as well.

http://www.ckperformance.com/Files/112573/VOLUME%201%20CHAPTER%206.pdf

I'm still working on the Honey-do list, so I haven't been able to work on the Murray's transmission issue yet.

--
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that