It may be a bad tps ( throttle position sensor ). it causes transmission shift issues, bucking,jerking, idle surging, engine cut off, surge while crusing down highway. if this does not solve problem, it may be a sticking valve body in transmission. have a good day !! for an automatic tranny.
I had this exact same problem in my 1995 Chevy Silverado. It ended up being the shift solenoid in the transmission. While they were in there I had the transmission fluid and filter changed. It cost me about $500 for everything.
My truck has 262k miles and is still running well.
Oil leaks only when park on incline
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