2-3rd shift

[ta3mo3]

Hi,

the problem is
when the tranny shiftting from 2nd to 3rd the RPM goes high its like 2nd-N-3rd

300A

[vegasmarauder]

If it just started, I think the tranny is starting to go. As it gets worse, it may start flashing the "OD OFF" light and then the "Check Engine" light will come on. If it was a sticking or malfunctioning shift solenoid, I think you would have other erratic shifting patterns. The shift solenoid can be fixed through the pan without removing the trans, but I'm gonna bet the clutch plates/seal is going.