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I’ll say, I had a 2021 f150 sport with the 3.5lEB, then a 2022 F150 FX4 with the 3.5, and now the raptor.Well, I got my truck back after three weeks. They still can’t figure out another issue and are waiting on more answers from Ford hotline, so I told them to put my truck back together and give it back. It’s still rattling, worse if anything.
I did notice that it’s RPM dependent as FordTech mentioned. 500-600 is the usual idle rpm for my truck, and it rattles at that rpm. If I hold the brake and give it throttle to 700rpm, the rattle goes away. That happens to be the “Park” idle rpm.
I have 7600 miles on my truck. 23 model. the rough idle started around 500~600 miles and more often as i got more milage on my truck. One time it was so bad at the red light, inside of water bottle was making mini waves. I took a video, so i can show it to the service center.Mine does this and I’m at 11k miles…. I just ignore it now