I just bought 6-84944, a PRR E6. It’s a stunning engine. But intermittently the chuffing disappears when it starts moving above low speed. I can obviously get it back to Lionel or to an authorized service center, but wondering if anyone has any ideas on this. The chuff always works at very low speed. Over half the time it goes away when the engine moves a little faster (but still what I consider slow).
Even while the chuff disappears, the rest of the sounds and functions work perfectly.
Thanks everyone!
Matt