CP Trackmobile (6-28450) Dies on throttle up

Well, I can tell you that they're a giant PITA to take apart!  I've had mine apart once, and unless something really bad happens, never again!

I'd suspect something like pickup issues, if it were a short you'd have some sort of indication.

What happens if you immediately switch to reverse and then try to move?

John, I did as you suggested. Pic of the state of the Trackmobile  and youtube video of its operation. Rather than reassemble I simple stacked the parts back and put it on the track. It ran as it should. Only  thing I noticed is the lights flickered when I hit the coupler button on the Cab2

Video:

https://youtu.be/ZhJEoeToOgY

What do you suspect is going on?  

I reassembled the beast and now it runs just fine...there is a flicker when I hit the coupler button but it works.   I'm going to leave well enough alone unless you think that flicker is abnormal and needs attention.  thanks again for the suggestion to hit the reverse quickly...that started the road to recovery. 

The flicker is pretty normal, many locomotives do that when you hit the couplers.  Hard to say what was wrong.  When I have an issue like this, I usually look for loose connectors, solder joints, boards, etc.

ToledoEd...I also have a similar problem with my trackmobile. The unit starts with a hesitation, then moves slowly down the track with  noticeable thump each time the wheels turn. Thinking this is a mechanical problem I approached from the bottom of the unit working my way up. All looks good up to the intermediate gear but cannot see much after that.

I see you made a video that may help me from the top down. I tried the You Tube feed but no joy. Would you mind sharing it with me?