I drive a 1996 Nissan Maxima, which has a 3 speed automatic transmission with overdrive. I have heard that you cannot tow a vehicle that has an automatic transmission without first removing the drive shaft (RWD) or front axles (FWD) because there are parts in the transmission spinning with no pump lubercating them with transmission fluid. The pump is not running without the engine running, but I would assume it takes a while for the transmission parts to drip dry of transmission fluid. My question is, would it be okay for me to practice engine off coasting for fairly short distances?
Again, My car is a 1996 Nissan Maxima
My transmission is a Jatco RE4F04A Automatic with overdrive and lockup torque converter.
I asked that question on the eng-tips forum, got a reply stating how quickly the output shaft bearings/axle was spinning, responded with what you said, that the bearings wouldn't go bone dry instantly, and was banned, so meh? I wouldn't do it unless I had no problem dropping and rebuilding/replacing the trans.
Originally Posted by FormulaTwo
I think if i could get that type of FE i would have no problem driving a dildo shaped car.
Welcome to GasSavers: The question you ask is a tricky one. The issue is that almost all automatic transmissions operate off of a pump which is driven from the front of the transmission and therefor the motor. Consequently when you are coasting in neutral, with the engine off, the pump is not turning and their is no oil pressure.
However, if you are in neutral, then the gears of the transmission are not engaged and their isn't any real loading on the transmission. I believe their may be some people on here who have tried doing EOC with an Automatic. I haven't heard of anyone destroying their transmissions, yet. However, I wouldn't be doing it. The gains from EOC are not great enough, at least for me, to risk mechanically wrecking the transmission.
On the other hand, if you wrecked it, then you could get a manual transmission installed, so you could EOC without killing the transmission.
Okay, I have also considered installing a manual 5 speed, which was an option when this car was originally built, however, I have not yet successfully found any yet, nor have I even seen any 4th gen Maximas with a five speed, but supposedly they exist. Any suggestions on finding a manual trans?