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Jeep dead after a 8.4 swap attempt..HELP

Expedition JT

Well-Known Member
First Name
Gary
Joined
Nov 13, 2019
Threads
11
Messages
84
Reaction score
49
Location
Wrightstown NJ
Vehicle(s)
2020 Rubicon JT, 94 YJ, CJ-8 Scrambler
Hey fellow jeepers,
So I want to know if anyone has an idea of what’s wrong with the Jeep. I attempted a swap of the 8.4 out of a 2020 JT. Upon start up, it never asked for the anti theft code. Initially everything worked fine. Back up camera, satellite radio, and Nav. I tried the uconnect app for the travel link and soon after that the Jeep told me pull over while I was parked and all the lights flickered for a while while my check engine lights and even sway bar button started flickering. Eventually everything went dead and after a week the dealership they can’t get power to the vehicle with a good battery. I ended up not buying that radio and put my 7” back in. Warranty won’t cover it because I tried to swap the radio With a radio out of the same model and year Jeep. Saw that coming. Anybody have any thoughts? They opened a case with Chrysler to search for a possible fix. Thanks for any help. Appreciate it!
It is a 2020 JTR manual trans.
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