Anyone knowledgeable on the Aisin (Ram) 6-speed?
One of my trucks ('08 Sterling 4500) is showing some shifting errors under light to moderate throttle. Heavy throttle it generally shifts fine. Intermittently it will miss the 1->2 shift, and hold 1st until it hits the fuel cutoff at 3200 RPM, then it makes the shift. I've also have it not make the 2->1 downshift at WOT. Also had it once rev up like its in neutral, and slam into 1st, as I was trying to pull away from a stop sign on a mild grade.
Fluid looks good. We run the recommended Mopar stuff. We change the fluid and filter every 7,500 miles (standard practice for us on all of our class 2-5 trucks). No codes.
Has anyone else experienced this? There are 300-some data channels for the transmission. We can monitor 12 at a time. Any suggestions which one to monitor?
Truck has close to 70,000 miles. Empty weight is around 10,800 with full fuel. Loaded weight is usually less than 16,000 pounds combined. This is a recent development in the last month. Yes, the transmission has alway had some shifting quirks, but this is new, and its twin does not do this.
Thanks!
Fluid looks good. We run the recommended Mopar stuff. We change the fluid and filter every 7,500 miles (standard practice for us on all of our class 2-5 trucks). No codes.
Has anyone else experienced this? There are 300-some data channels for the transmission. We can monitor 12 at a time. Any suggestions which one to monitor?
Truck has close to 70,000 miles. Empty weight is around 10,800 with full fuel. Loaded weight is usually less than 16,000 pounds combined. This is a recent development in the last month. Yes, the transmission has alway had some shifting quirks, but this is new, and its twin does not do this.
Thanks!
