2000 4.6L, went to shift into reverse and nothing was there. Gunned the truck and got a weak reverse, have not been able to get it back since then. The torque convertor feels like it won't lock up and I get no engine breaking with the gear selector in any position. Dropped the pan to drain the fluid and will be digging into the solenoids tomorrow. Fluid did not appear to be burnt, but the transmission was leaking on the left side, heavier by the linkage. Any ideas of what to look for?