Just bought my second RAM diesel truck...traded my 2018 dually with a manual trans for a 2019 with the Aisin. Well, it's a very nice truck but the transmission feels like a piece of junk. It feels like a worn out, slipping, flaring, and non-smooth transmission. Sometimes, it shifts smoothly. Usually that happens if I'm very light on the accelerator. At other times, it seems to randomly stick in a low gear and rev too high (no, gear limiting is not turned on). Sometimes it feels like it is in neutral when you're trying to accelerate. Sometimes the shifts are very abrupt and firm.
This transmission seems to also lock and unlock the converter a lot. Perhaps there is a reason for all this? I thought if I paid extra for a transmission, it would be great. I've owned FOUR Super Duty Ford diesels, all 6.7L trucks with the Ford 6R140 transmission. None of them behaved like this Aisin. I didn't have to pay extra for the trans in the Ford, and it shifted as smooth as silk.
I'm OK with a firm shift but the wacky and unpredictable nature of this tranny is already driving me nuts.
This transmission seems to also lock and unlock the converter a lot. Perhaps there is a reason for all this? I thought if I paid extra for a transmission, it would be great. I've owned FOUR Super Duty Ford diesels, all 6.7L trucks with the Ford 6R140 transmission. None of them behaved like this Aisin. I didn't have to pay extra for the trans in the Ford, and it shifted as smooth as silk.
I'm OK with a firm shift but the wacky and unpredictable nature of this tranny is already driving me nuts.