The valve body does not control the line pressure, that is controled by the vacum modulater. When you are reading the line pressure it is the output pressure directly out of the fluid pump. The main causes for a low fluid pressure are the following: low fluid level (air gets into the fluid) bad pump (can't pump high enough pressures due to worn clearances) A RESTRICTION IN THE SUCTION ie: a bad, or plugged up filter or maybe you just put the gasket in wrong and are blocking the intake. If you have driven the car at a low line pressure and slipped the clutches then they will need to be replaced again. If there is friction materiel in the pan again you wiped out c-1. Another remote possibility is a restricted hose or the cooler is plugged up. This can be tested by making a bypass test hose in and out of the trans. Do not run too long like that or you will overheat the trans quickly but you should be able to do it long enough for testing purposes. David Teitelbaum vin 10757 -- In dmcnews@xxxxxxxxxxx, dmcdelorean2@xxxx wrote: > Hi, > > Last month I posted my problem with my automatic transmission. It > turns out that no trans fluid was getting in, therefore none of the rings and > clutches in the tranny were being lubricated and burnt. Anyways, the > transmission was rebuilt and put in.