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Tranny slip 2nd to 3rd, 2010 Sierra 5.3

turkish

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turkish Enthusiast

turkish

Posted
Posted

I've done a little research as my truck has begun doing this more often. Was there ever a TSB that included 2010s for the shift flare issue?

 

Anyone have this problem on a similar year model 6-SPD?

 

It feels like I'm driving a manual and let the clutch out super slow after going to third. Not consistent, though, so I doubt my dealer will detect it, as truck is still under 100k drive train warranty:(

MikeNH Senior Enthusiast

MikeNH

Posted
Posted

My 2011 has done it since new, 58000 miles ago. The tune firming up the shifts has helped but before that the dealer said it couldn't duplicate it. Just something I've learned to ignore.

turkish Enthusiast

turkish

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I can ignore it, assuming it gets no worse. The concern is that it seems much more severe, the more I am in the throttle. I'm afraid that if I'm hard in the throttle one day when it slips, the dang tranny will blow up.

Carder09 Senior Enthusiast

Carder09

Posted
Posted

Wonder if a corvette servo would work with the 6 speeds. That would firm up the shifts and possibly stop your problem.

j-ten-ner Senior Enthusiast

j-ten-ner

Posted
Posted

Mine does the same. From the beginning.

I thought it is part of the torque management(?).

 

 

...The concern is that it seems much more severe, the more I am in the throttle...

 

Only difference to yours is that is gets firmer as more as I 'm on the throttle.

 

But maybe something to keep an eye on as long I've got warranty on the truck.

 

so long

j-ten-ner

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