While shifting from D4 to R, you need to
shift to N and wait for 3-5 seconds and then
shift into R. I too had same problem with 99LX. It takes some time for gear engagement.
Also noticed that when my vehicle is parked for more then 4 hours ( i.e it is cold ),
and then when I shift from P to R, there is a bang, to avoid this , I raise the rpm to 2000 and hold it steady for 5 - 10 seconds, this will circulate A/T oil in all
solenoid values and will not bang when shifting into R. Once the engine is running and Temp gauge shows normal, there is no
bang in R shift from any direction.
shift to N and wait for 3-5 seconds and then
shift into R. I too had same problem with 99LX. It takes some time for gear engagement.
Also noticed that when my vehicle is parked for more then 4 hours ( i.e it is cold ),
and then when I shift from P to R, there is a bang, to avoid this , I raise the rpm to 2000 and hold it steady for 5 - 10 seconds, this will circulate A/T oil in all
solenoid values and will not bang when shifting into R. Once the engine is running and Temp gauge shows normal, there is no
bang in R shift from any direction.