Rough shift into reverse.
Please describe in detail the lag you feel in first. Is the engine revving up before the car moves, only to catch and make the car leap forward?
The lag issue could be either torque converter clutch or the solenoid that commands the converter clutch to engage-disengage. You'll probably need a transmission person to definitively diagnose this. You could contact Dave @ www.tripleedgeperformance.com and find out what he thinks.




