Hey guys,
So I had a 2020 R/T that I was really dissatisfied with, terrible drivability and intermittent transmission issues after 4000 miles. I ended up finding the intake manifold was very loose (less than 30 in/lbs), and tightening helped some issues, but not all of my issues. While in for service in October, the dealership crashed the car, couldn't get parts to fix it after weeks, and since I already hated it, I traded it on a 2021 hoping for better results. The 21' also had a very loose intake manifold (also less than 30 in/lbs), which I tightened at 500 miles after some good heat cycling, and the overall drivability feels better than the 20'. I do have one common issue that drives me insane that started back up last night at 2100 miles. When accelerating with moderate throttle from a slow roll (turned out of a plaza onto the road, or making a u-turn) then increase throttle when wheel is straight), but NOT WOT, sometimes the car pulls strong, smooth, and linear through the whole range; smile inducing power. Other times, the EXACT same throttle input, sometime minutes later on the same drive, yields WAY less power, slight hesitation every few hundred RPM, then a sudden jolt of power around 4500 RPM until the next shift. Assuming the issue is the same as the last car, this occurs in NORMAL, SPORT, Auto, Manual, Traction in NORMAL, SPORT, or defeated entirely with 10 second hold. I had the last car to two different dealers a total of 7 times and had Chrysler corporate involved. Of course neither car showed any signs of trouble when new. I have read everything there is to read regarding owner reviews of the Charger R/T A8 combo and it is nothing but glowing positivity. Between this issue, and the abrupt stumble and hesitation under light throttle acceleration from a cruise coming out of MDS on BOTH cars, I cannot be alone. Is anyone out there experiencing this? I just want to know if I somehow got the only two 5.7 chargers that do this, or if it just doesn't bother anyone else. My other 3 HEMI's prior this (2, 5.7's and 1 6.4) always pulled strong and smooth no matter what, including my 203,000 mile 2007 Ram 1500 to this day.