HELP!! mth proto 2 aem7 issue

Bobby,

it does not seem to have and power

You need to define what you mean by the above. Does the engine run well by itself? If not, check for a traction tire that's missing or jammed in the gears. Run it upside down in a cradle and see if both motor trucks turn.

I will check Barry never thought about a traction tire hmmm

ok Barry I just checked no ripped traction tires also I runs jerky it does not run smooth does that mean it need to be greased? its my oldest engine so haven't done any matenice to it  

You still haven't explained what you mean by sighing that it isn't as strong as yiur the engines?

Have you run it upside down in a cradle to see if both sets of wheels turn?

When it runs "jerky", do the lights flicker at all?

Has anyone been inside it prior to its behaving badly?

yes the lights flicker and no has been inside of it before also what I mean by jerky is it like a car right before it runs out of gas is the best way to explain it

Something that is easy to do is clean the wheels without traction tires, and the rollers, both outside and inside where it spins on the pin. Check for continuity between the two rollers. Clean the track also. 

the front motor I think is the problem its making a grinding noise every few seconds then I think it stops for a split second and works again

I run several of those engines and they are great pullers.  Check everything.