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diesel 3.0

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Posted (edited)

Traded my '20 High Country (w/18K miles) in on Jan. 30th for a '21 AT4. I've noticed that the trans "sticks" or "hangs" b/w 1,600 & 2,000 rpms in all driving environments (flat, minor grades & hills, etc). I have to play with the pedal to get it to shift & I don't ever recall my "20 HC doing this. It was rock solid & was smooth as butter....never noticed anything with it. Took the AT4 into the dealer to have it checked...."it is fine, no issues with it, it's in spec".  It seems to be getting a little better now that I have 4,9xx miles on it but it still hangs.

 

Curious if anyone else has had this experience?

Edited by SWBuckeye
Posted

18,000 km now on Denali, no shift issues at all.  Still smooth like a Molson Golden.

  • 10 months later...
Posted

Traded my 2020 HC with 6.2 in Dec 21 for 22 LTZ 3.0.  No shift issues at all. Had a couple times of extended crank no start.  Other than that a great ride, fuel economy excellent. Last tank at 2922 miles was mixed driving in town then a 100 mile run at 55 to 60.  Hand calculated mpg was 29.3   Running 33 inch Bridgestone AT Revo 3 on Black Rhino rims.  

  • 1 month later...
Posted

The 10 speed tranny was a GM+Ford joint development. I had a 2019 Raptor and experienced plenty of shift issues..they updated the software and it was better but the GMC version shifts like a dream compared to the Ford. Software differences? Could also be that it does much better mated to a diesel. 

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