Mouse
Well-Known Member
Last week I had my JT in for the steering TSB. While in the shop, they also updated the PCM using TSB 18-053-20. It is also list as Rapid response transmittal (RRT) 20-053 dated 28 August. It is a flash of the PCM. Seemed to smooth out my JT engine's performance.
A note states "applies to vehicles built on or before 9 Jul 20.
A note states "applies to vehicles built on or before 9 Jul 20.
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