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Username Post: 93 gmc trans issues        (Topic#348997)
Hohnsz71 
Platinum Supporting Member
Posts: 146
Hohnsz71
Loc: Dayton Texas
Reg: 02-23-15
01-03-18 06:41 PM - Post#2719917    

Im looking at buying a 93 gmc z71.It engages from park to first very hard. (coulumn shifting it) the transmission will stay in first gear until you let off and it slams into 2nd, same thing from 2nd to third, but from 3rd to 4th is fine.
(in overdrive) when accelerating it switches from 1st to 2nd then bact to 1st repetedly and super fast,(3 times in a second maybe) but it does not slam in to gear. it does the same from second to third. they both straighten out around 2500 rpms 3rd to 4th is still normal.
Would it be the check balls in the valve body? It is a 4l60e.

2012 silverado, bone stock.
1997 Suburban k2500, under construction.


 
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