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txdjpat

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  1. txdjpat
    I have a 2019 chevy crew cab with 3300 miles on it and I too am experiencing same with the transmission having a harsh downshift at times especially going down hill in texas. Also with the tachometer jumping up and down between 1100 rpm to 1400 rpm like if someone was trying to engage the cruise control somewhat going downhill. Ive taken the truck to be serviced and they pulled a code out which had to do with a wiring harness/sensor i ws told. not sure who to believe because the truck still does it. sadly disapointed from a lifelong chevy owner..... hopefully GM can send out an update to correct.
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