I have a 2015 2500 Laramie mega cab with 30k miles I just bought.
It’s deleted and has an EZ Lynk tuner which I hate.
Everything is stock on the truck except the deletes, and I noticed the 68RFE shift really hard like I feel like the transmission is just going to drop out hard.
If I put it in tow/haul mode, it shifts smoother, more like my other 2500’s I’ve had, but it’s still a hard shift.
When I accelerate fast, it seems like the transmission goes crazy and doesn’t know what gear to put it in and shakes and sometimes slips for no reason; it’s awful with tow/haul turned off.
I just took a trip and noticed when I’m going 70-80 on top of 5 or bottom of 6th, I get an up and down shaking in the truck and slipping in 3 to 4th gear when accelerating.
I reset the auto-learn, and it drove decent for about 400 miles, then went back to acting crazy.
I think it’s a tuning issue since the truck has never been to the dealer for any recalls or updates?
Any help would be appreciated.
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