I have a 92 4.3L V6 CPI injection 4x4 4 speed automatic and I am trying to figure out what the transmission code is. When I bought it I had a major transmission leak that I wasn't told about and I didn't notice till after the fact and it has been ran low a couple times.

I am thinking about replacing the transmission just to be on the safe side as it just seems like it is off and I would rather be safe than sorry as I would like to use the vehicle to tow a boat and not have to worry about it.

I have used google and I can't find a straight answer. Thanks in advance for any info!

 

Is it shifting poorly now? Typically, running a transmission low on fluid will not damage things unless it is driven for a while with a low fluid condition that is impacting shift performance/duration.