I recently bought Life-Like's Proto 2000 series GP-30 phase 1 locomotive, and i'm having trouble running it.  I have not yet put the body shell on yet, but that shouldnt matter, should it?  The loco makes a vibrating noise, like it's trying to move.  I can see what I think is the worm gear move for about 5 seconds, loco moves, then it won't move and makes the vibrating sound again.  Anyone know what could be wrong?

I have the Special Forces train set(by Bachmann), and need a replacement engine. The horns are broken off, most of the handrails have become disconnected from the shell.  Does anyone know where I could get the engine without buying another one of the sets?

Ive been wondering for a while, would it cost less to put in your own dcc decoder in your locomotives, or buy a loco that is already equipped with it?

does anyone know where i can find a replacement engine for bachmanns special forces set?

can kadee knuckle couplers mate with bachmann knuckle couplers?

About 6 months ago I purchased the Bachmann Overland Limited set. Everything worked perfectly until the third drive wheel set from the front locked up.Thinking it would help, I put WD-40 oil on the wheels. It turns out, all i had to do was wiggle the wheels a little. The Union Pacific no.806 4-8-4 Steam Locomotive worked perfectly. Only about 3 days later, with all the included frieght cars attached, the wheels began to slip. I took off about 4 of the cars and it worked fine. I tried to wipe off the oil on the wheels with numerous towels, same result. I wiped down every piece of my E-Z Track System with a towel, same result. To this day, the wheels still slip. Any way to fix this?