Is 4L80E computer controlled?
Is 4L80E computer controlled? All 4L80E transmission use electronic controls; typically from the Powertrain Control Module. Some vehicles have shift maps that are selectable by the driver based on usage, such as towing. Does a 4L80E have a thermostat? It does not control a thermostat - there is none. Some aftermarket coolers have their own thermostat for that purpose. Why do I have bad shifting on my 4L80E? In addition to erratic shifting, the trans control program will default to backup shifting mode if you drive it long enough with this bad sensor, and as a result line pressure through...