700r4, in need of assistance.
i just rebuilt 700r4, put it back in got the T.V. cable set like it should be and take it for a test drive. it shift a little soon on the 1-2 shift but it does shift through all the gears pretty good. but my problem is that it will not down shift back to first. it down shifts fine through all the other gears, but will not drop back into first. if i manualy drop it in it will go or if i stop shut it off and restart it will start in first but just driving down the road it will not. i think my line pressure is low but i cant find anything telling me what they should be.
any help would be great.