Trans problem; won't go into gear?

[duckmanjbr]

Well I know how this site loves answers to all the problems so here's what I found... I disconnected the cooler lines to make sure I had fluid pressure in the trans. Nothing.... I guess the ole dipstick check isn't very accurate to see if the pump is working. With the motor running and it in park I get no fluid being pumped to the trans cooler. That makes my problem simple right? Bad pump? I'm still a little weirded out that I've lost 2 pumps in 5 or 6 days though. I flushed the cooler to make sure there were no blockages and make sure it was good. So now I'm left w/ nothing other than a bad pump. What would cause 2 bad pumps in a row other than my extreme bad luck? Does it make a difference what cooler line gets connected to either side of the cooler? I guess my next test will be w/ a new trans and make sure I'm getting flow through the cooler then.

[RedHeartbeat]

Did you service the filter while you installed the transmission? If so, was it black plastic top half with a metal bottom half? Did you replace the seal that goes into the pump? If not and the old one was damaged you could have been sucking air. When dropping the pan you also could damage the shift solenoids and you'd lose motion. Finally, get rid of the EPC solenoid and replace it with a Transgo vacuum controlled shift modulator!