Unexplainable cogging

[jnev]

I am not sure how many of you remember me talking about my broken 9xl motor (magnet came off the shaft), but anyway, Mike sent me a brand new replacement.

So I installed the new motor, and since I did not have the right plugs, I made an adapter from the motor to the ESC 5.5mm plugs just to test if it works or not. I used a small copper stick that was a tight fit into the ESC plugs, and soldered wire on the other end of the copper stick to the motor wires. The first couple times the ESC would not arm/beep or anything for some reason. But after multiple tries, it finally did. It worked great for about 2 minutes, until it stopped dead in its tracks.

Every time I press the throttle it cogs like nothing else. Even in the air I can't even accelerate. The wheels just go back and forth and the car doesn't move at all. So I brought it in and nothing smells fried or burnt or anything. I unplug everything and turn it off and then plug the battery back in and turn it on, and it arms/beeps right away, but then cogs as well like it did before. I do have full steering though.

Could this problem be from a bad solder joint? Or is it possible that it is related to the ESC/motor? Before the old motor broke, everything on the truck worked flawlessly. I also have the new software installed on it.

Any help is appreciated. Thanks in advance.