In either 2nd or 3rd gear, it revs up to about 2800rpm and then it slips into neutral. I have to manually move the shifter to 3 to get it into gear again, could go into either 2nd or 3rd gear. Sometimes, when shifting it into 3 causes a major thud in the rear, the Trans Program light comes on.
What's your thoughts? Could it be just the solenoid valves, throtle sensor, clutches or do I need to rebuilt?? If its the solenoid valves, which of the valves could be the fault?