@sinclair posted:3 clanks of death is not the deselect issue, they are different, and the MTH chip kit does not fix the deselect issue. You have to buy a brand new chip for the locomotive. GGG can go into more details on it.
Sorry, wrong this time, the three clanks is the deselect issue, usually from a low battery. It's the single problem that the MAKE PS chip that MTH sells (or used to sell) was made to correct once you have a good battery.