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No second gear at all. !


Cumminz71

Question

I recently bought a 1998 z71 GMC Sierra 1500 with a 5.7 and 4L60E. When you take off with the shifter in the overdrive position the truck will shift straight to 4th gear around 25 mph and it does the same if it's in the 3rd position, skipping second altogether. Truck has reverse and the converter locks appropriately in 3rd and 4th gear. If you put your foot down the truck will attempt to downshift into low gear at any speed. If you pull it into manual 2nd, it will simply freewheel. This is the 3rd transmission its had put in it. (1 by myself, 2 by the previous owner) all with the same result. There are no transmission codes present. Speedometer works properly. So this is clearly an issue with the truck and not a tranny issue. Any help would be greatly appreciated. I also ran a jump wire from the 1-2 shift solenoid pin on the 13 pin connector on the tranny to the 1-2 shift solenoid pin on the red pcm connector with no luck...

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