Caution!
Any Megatech product purchased from internet auction sites such as eBay or Yahoo auctions, void all warranty from Megatech.
Unfortunately, you may have found this out when you contacted Megatech!
Well, first off... welcome to the forum, musclecar201!
Let's see if I could be of any help to you?
Your issue with your vehicle may stem from a few various things.
You may be experiencing radio interference, so try to run your vehicle at a different location. If that doesn't help, you may have to try a different frequency so change the crystals. Also, your motor could be the culprit of the interference. If you look at your motor, you'll see little green capacitors. Those capacitors are there to help resist against interference by isolating ground loop. Sometimes they go bad, so try changing out your motor.
It could also be that your receiver could have gone bad, so you may have to change that.
It could even be that your esc could be faulty, so you may have to change that instead!
It's really a hit and miss in figuring out what exactly is causing your problems. What's really weird is something may be "faulty" in your vehicle, but if you were to switch it out into another vehicle, it may work just fine!?
I hope that you are able to diagnose what is causing your issues. Hopefully this didn't just add more to your confusion!
Good luck, and let me know how it goes!
Aloha,
"Erock 808"