1997 Chevy Suburban

My 1997 1500 Suburban with 45k on it began shifting hard from gear to gear after short non stop trips. You can stop at a gas station long enough to fill up, and when you drive off everything is like brand new -- until you drive another short distance and stop again.
Driving us crazy! No codes in the trans, and pressures and all look fine.
Anyone have this problem too . . . what fixed it?
Driving us crazy! No codes in the trans, and pressures and all look fine.
Anyone have this problem too . . . what fixed it?
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Comments
He said everything "looked" and "checked out" fine.
Mine would "slam" when doing 1-2 upshift. Hard - like I was worried about dusting the drivelines. Seemed to be worse when truck was stone cold - or very hot.
Problem was the TCC control - this was replaced and prob has been gone ever since.
Diagnosis of electronically controlled tranny problems is tough - find a GOOD shop and pay the going rate. If you go cheap on this - you'll chase it forever.
Good luck- j4