I have a Proto 2000 GP38-2 that I installed a Digitrax DH165LO decoder in.
It’s having issues jerking/running sluggish in low speeds [especially in reverse] When increasing the speed it will hardly move.
I took it apart and clean the gears, made sure they weren’t split, lubed and made sure everything was moving freely but only slightly better.
I recommend I replace the motor because the original might have a dead spot, so I tried 2 new motors with no luck.
I contacted Digitrax and they had me do a decoder reset and suggested I clean the pickups, which I did. Double checked all the wiring.
Still Nothing changed
I do have another GP38-2 which after decoder install runs great.
Does anyone have any ideas or recommendations? or would know what might be causing this? Thanks
3 motors and 3 posts in 12 years, there is a pattern there somewhere[;)].
Did the loco run OK before you installed DCC?
Some people say they have superior speed control with certain brands, but I don’t recall anyone saying a decoder failure caused the symptoms you are experiencing. It runs or it doesn’t.
Cracked gears can be hard to see, are you certain about that?
I have two and they don’t run good on DC.
That’t not a problem that can be fixed with DCC or adjusting CV’s. We will see what the OP has to say.
I’m sure abo the gears, I have replaced many on my other Proto’s, I don’t think it’s the decoder eithe. I just hard wired A NCE I had and it does the same thing, next I installed new wires form the pickups and still the same, I’m trying everything with no luck